kandi background

JavaGuide | Java Learning + Interview Guide | Application Framework library

by Snailclimb Java Version: Current License: No License

by Snailclimb Java Version: Current License: No License

kandi X-RAY | JavaGuide Summary

JavaGuide is a Java library typically used in Server, Application Framework, Spring, Example Codes applications. JavaGuide has no bugs, it has no vulnerabilities and it has medium support. However JavaGuide build file is not available. You can download it from GitHub.

"Java Learning + Interview Guide" covers the core knowledge that most Java programmers need to master. To prepare for Java interviews, JavaGuide is the first choice!

Support

Support

Quality

Quality

Security

Security

License

License

Reuse

Reuse

kandi-support Support

JavaGuide has a medium active ecosystem.
It has 130322 star(s) with 43188 fork(s). There are 4586 watchers for this library.
It had no major release in the last 6 months.
There are 64 open issues and 785 have been closed. On average issues are closed in 37 days. There are 1 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of JavaGuide is current.

JavaGuide Support

Best in #Application Framework

Average in #Application Framework

JavaGuide Support

Best in #Application Framework

Average in #Application Framework

quality kandi Quality

JavaGuide has 0 bugs and 0 code smells.

JavaGuide Quality

Best in #Application Framework

Average in #Application Framework

JavaGuide Quality

Best in #Application Framework

Average in #Application Framework

security Security

JavaGuide has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
JavaGuide code analysis shows 0 unresolved vulnerabilities.
There are 0 security hotspots that need review.

JavaGuide Security

Best in #Application Framework

Average in #Application Framework

JavaGuide Security

Best in #Application Framework

Average in #Application Framework

license License

JavaGuide does not have a standard license declared.
Check the repository for any license declaration and review the terms closely.
Without a license, all rights are reserved, and you cannot use the library in your applications.

JavaGuide License

Best in #Application Framework

Average in #Application Framework

JavaGuide License

Best in #Application Framework

Average in #Application Framework

build Reuse

JavaGuide releases are not available. You will need to build from source code and install.
JavaGuide has no build file. You will be need to create the build yourself to build the component from source.
JavaGuide saves you 159 person hours of effort in developing the same functionality from scratch.
It has 78 lines of code, 0 functions and 2 files.
It has low code complexity. Code complexity directly impacts maintainability of the code.

JavaGuide Reuse

Best in #Application Framework

Average in #Application Framework

JavaGuide Reuse

Best in #Application Framework

Average in #Application Framework

Top functions reviewed by kandi - BETA

kandi's functional review helps you automatically verify the functionalities of the libraries and avoid rework.
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample Here

Get all kandi verified functions for this library.

Get all kandi verified functions for this library.

JavaGuide Key Features

介绍：关于 JavaGuide 的相关介绍请看：关于 JavaGuide 的一些说明。

贡献指南：欢迎参与 JavaGuide的维护工作，这是一件非常有意义的事情。

PDF版本：《JavaGuide 面试突击版》PDF 版本。

图解计算机基础：图解计算机基础 PDF 下载。

知识星球 : 简历指导/Java学习/面试指导/面试小册。欢迎加入我的知识星球。

面试专版：准备面试的小伙伴可以考虑面试专版：《Java面试进阶指北》 (质量很高，专为面试打造)

转载须知：以下所有文章如非文首说明皆为我（Guide哥）的原创，转载在文首注明出处，如发现恶意抄袭/搬运，会动用法律武器维护自己的权益。让我们一起维护一个良好的技术创作环境！⛽️

JavaGuide Examples and Code Snippets

Community Discussions

Trending Discussions on JavaGuide

maven-checkstyle-plugin failed to parse Java 'record'
Spring boot 4 controller error: The method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)
Couldn't connect Springboot project to Mysql database
What is a Javadoc summary fragment?
h2 database persists data but resets on application start
Angular requests blocked by CORS policy only under certain conditions
javax/xml/bind/JAXBException
Checkstyle ConstantName rule kicks in for things that are not really constant
java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) Spring boot
org.springframework.beans.factory.UnsatisfiedDependencyException: error after adding new repository

Trending Discussions on JavaGuide

QUESTION

maven-checkstyle-plugin failed to parse Java 'record'

Asked 2022-Mar-16 at 16:42

I'm trying to setup checkstyle in our project - but seems like Maven (v3.8.3) or maven-checkstyle-plugin (v3.1.1) itself are not aware of Java 14's record (we use Java 17).

Caused by: java.lang.IllegalStateException: /Users/dmitry.adonin/IdeaProjects/raap/src/main/java/com/xxx/web/dto/Request.java:3:8: unexpected token: record
    at com.puppycrawl.tools.checkstyle.JavaParser$1.reportError (JavaParser.java:93)
    at com.puppycrawl.tools.checkstyle.grammar.GeneratedJavaRecognizer.typeDefinition (GeneratedJavaRecognizer.java:411)
    at com.puppycrawl.tools.checkstyle.grammar.GeneratedJavaRecognizer.compilationUnit (GeneratedJavaRecognizer.java:202)
    at com.puppycrawl.tools.checkstyle.JavaParser.parse (JavaParser.java:99)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processFiltered (TreeWalker.java:159)
    at com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck.process (AbstractFileSetCheck.java:85)
    at com.puppycrawl.tools.checkstyle.Checker.processFile (Checker.java:329)
    at com.puppycrawl.tools.checkstyle.Checker.processFiles (Checker.java:291)
    at com.puppycrawl.tools.checkstyle.Checker.process (Checker.java:216)
    at org.apache.maven.plugins.checkstyle.exec.DefaultCheckstyleExecutor.executeCheckstyle (DefaultCheckstyleExecutor.java:202)
    at org.apache.maven.plugins.checkstyle.CheckstyleViolationCheckMojo.execute (CheckstyleViolationCheckMojo.java:545)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)
Caused by: antlr.NoViableAltException: unexpected token: record
    at com.puppycrawl.tools.checkstyle.grammar.GeneratedJavaRecognizer.typeDefinitionInternal (GeneratedJavaRecognizer.java:584)
    at com.puppycrawl.tools.checkstyle.grammar.GeneratedJavaRecognizer.typeDefinition (GeneratedJavaRecognizer.java:389)
    at com.puppycrawl.tools.checkstyle.grammar.GeneratedJavaRecognizer.compilationUnit (GeneratedJavaRecognizer.java:202)
    at com.puppycrawl.tools.checkstyle.JavaParser.parse (JavaParser.java:99)
    at com.puppycrawl.tools.checkstyle.TreeWalker.processFiltered (TreeWalker.java:159)
    at com.puppycrawl.tools.checkstyle.api.AbstractFileSetCheck.process (AbstractFileSetCheck.java:85)
    at com.puppycrawl.tools.checkstyle.Checker.processFile (Checker.java:329)
    at com.puppycrawl.tools.checkstyle.Checker.processFiles (Checker.java:291)
    at com.puppycrawl.tools.checkstyle.Checker.process (Checker.java:216)
    at org.apache.maven.plugins.checkstyle.exec.DefaultCheckstyleExecutor.executeCheckstyle (DefaultCheckstyleExecutor.java:202)
    at org.apache.maven.plugins.checkstyle.CheckstyleViolationCheckMojo.execute (CheckstyleViolationCheckMojo.java:545)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:137)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:210)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:156)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:148)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:117)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:972)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:293)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:196)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke (NativeMethodAccessorImpl.java:62)
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke (Method.java:566)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:282)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:225)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:406)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:347)

There are the following configs:

pom.xml:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.2</version>
        <relativePath/>
    </parent>

    <groupId>...</groupId>
    <artifactId>...</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>...</name>

    <properties>
        <java.version>17</java.version>
    </properties>

    <dependencies>
    ...
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <excludes>
                        <exclude>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-checkstyle-plugin</artifactId>
                <version>3.1.1</version>
                <configuration>
                    <configLocation>project-checks.xml</configLocation>
                    <encoding>UTF-8</encoding>
                    <consoleOutput>true</consoleOutput>
                    <failOnViolation>true</failOnViolation>
                    <failsOnError>true</failsOnError>
                    <linkXRef>false</linkXRef>
                </configuration>
                <executions>
                    <execution>
                        <id>checkstyle-validation</id>
                        <phase>validate</phase>
                        <goals>
                            <goal>check</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

</project>

project-checks.xml:

<?xml version="1.0"?>

<!DOCTYPE module PUBLIC
        "-//Checkstyle//DTD Checkstyle Configuration 1.3//EN"
        "https://checkstyle.org/dtds/configuration_1_3.dtd">

<!--
    Checkstyle configuration that checks the Google coding conventions from Google Java Style
    that can be found at https://google.github.io/styleguide/javaguide.html
    Checkstyle is very configurable. Be sure to read the documentation at
    https://checkstyle.org (or in your downloaded distribution).
    To completely disable a check, just comment it out or delete it from the file.
    To suppress certain violations please review suppression filters.
    Authors: Max Vetrenko, Ruslan Diachenko, Roman Ivanov.
 -->

<module name = "Checker">
    <property name="charset" value="UTF-8"/>

    <property name="severity" value="error"/>

    <property name="fileExtensions" value="java, properties, xml"/>
    <!-- Excludes all 'module-info.java' files              -->
    <!-- See https://checkstyle.org/config_filefilters.html -->
    <module name="BeforeExecutionExclusionFileFilter">
        <property name="fileNamePattern" value="module\-info\.java$"/>
    </module>
    <!-- Checks new line at end of file is required                     -->
    <!-- See https://checkstyle.org/config_misc.html#NewlineAtEndOfFile -->
    <module name="NewlineAtEndOfFile">
        <property name="lineSeparator" value="lf"/>
        <property name="fileExtensions" value="java, xml, yml, yaml"/>
    </module>

    <!-- Checks for whitespace                            -->
    <!-- See http://checkstyle.org/config_whitespace.html -->
    <module name="FileTabCharacter">
        <property name="eachLine" value="true"/>
    </module>

    <module name="LineLength">
        <property name="fileExtensions" value="java"/>
        <property name="max" value="200"/>
        <property name="ignorePattern" value="^package.*|^import.*|a href|href|http://|https://|ftp://"/>
    </module>

    <module name="TreeWalker">
        <module name="OuterTypeFilename"/>
        <module name="IllegalTokenText">
            <property name="tokens" value="STRING_LITERAL, CHAR_LITERAL"/>
            <property name="format"
                      value="\\u00(09|0(a|A)|0(c|C)|0(d|D)|22|27|5(C|c))|\\(0(10|11|12|14|15|42|47)|134)"/>
            <property name="message"
                      value="Consider using special escape sequence instead of octal value or Unicode escaped value."/>
        </module>
        <module name="AvoidEscapedUnicodeCharacters">
            <property name="allowEscapesForControlCharacters" value="true"/>
            <property name="allowByTailComment" value="true"/>
            <property name="allowNonPrintableEscapes" value="true"/>
        </module>
        <module name="AvoidStarImport"/>
        <module name="UnusedImports"/>
        <module name="OneTopLevelClass"/>
        <module name="NoLineWrap">
            <property name="tokens" value="PACKAGE_DEF, IMPORT, STATIC_IMPORT"/>
        </module>
        <module name="EmptyBlock">
            <property name="option" value="TEXT"/>
            <property name="tokens"
                      value="LITERAL_TRY, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE, LITERAL_SWITCH"/>
        </module>
        <module name="NeedBraces">
            <property name="tokens"
                      value="LITERAL_DO, LITERAL_ELSE, LITERAL_FOR, LITERAL_IF, LITERAL_WHILE"/>
        </module>
        <module name="LeftCurly">
            <property name="tokens"
                      value="ANNOTATION_DEF, CLASS_DEF, CTOR_DEF, ENUM_CONSTANT_DEF, ENUM_DEF,
                    INTERFACE_DEF, LAMBDA, LITERAL_CASE, LITERAL_CATCH, LITERAL_DEFAULT,
                    LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY, LITERAL_FOR, LITERAL_IF,
                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_TRY, LITERAL_WHILE, METHOD_DEF,
                    OBJBLOCK, STATIC_INIT"/>
        </module>
        <module name="RightCurly">
            <property name="id" value="RightCurlySame"/>
            <property name="tokens"
                      value="LITERAL_TRY, LITERAL_CATCH, LITERAL_FINALLY, LITERAL_IF, LITERAL_ELSE,
                    LITERAL_DO"/>
        </module>
        <module name="RightCurly">
            <property name="id" value="RightCurlyAlone"/>
            <property name="option" value="alone"/>
            <property name="tokens"
                      value="CLASS_DEF, METHOD_DEF, CTOR_DEF, LITERAL_FOR, LITERAL_WHILE, STATIC_INIT,
                    INSTANCE_INIT, ANNOTATION_DEF, ENUM_DEF"/>
        </module>
        <module name="SuppressionXpathSingleFilter">
            <!-- suppresion is required till https://github.com/checkstyle/checkstyle/issues/7541 -->
            <property name="id" value="RightCurlyAlone"/>
            <property name="query" value="//RCURLY[parent::SLIST[count(./*)=1]
                                                 or preceding-sibling::*[last()][self::LCURLY]]"/>
        </module>
        <module name="WhitespaceAround">
            <property name="allowEmptyConstructors" value="true"/>
            <property name="allowEmptyLambdas" value="true"/>
            <property name="allowEmptyMethods" value="true"/>
            <property name="allowEmptyTypes" value="true"/>
            <property name="allowEmptyLoops" value="true"/>
            <property name="tokens"
                      value="ASSIGN, BAND, BAND_ASSIGN, BOR, BOR_ASSIGN, BSR, BSR_ASSIGN, BXOR,
                    BXOR_ASSIGN, COLON, DIV, DIV_ASSIGN, DO_WHILE, EQUAL, GE, GT, LAMBDA, LAND,
                    LCURLY, LE, LITERAL_CATCH, LITERAL_DO, LITERAL_ELSE, LITERAL_FINALLY,
                    LITERAL_FOR, LITERAL_IF, LITERAL_RETURN, LITERAL_SWITCH, LITERAL_SYNCHRONIZED,
                     LITERAL_TRY, LITERAL_WHILE, LOR, LT, MINUS, MINUS_ASSIGN, MOD, MOD_ASSIGN,
                     NOT_EQUAL, PLUS, PLUS_ASSIGN, QUESTION, RCURLY, SL, SLIST, SL_ASSIGN, SR,
                     SR_ASSIGN, STAR, STAR_ASSIGN, LITERAL_ASSERT, TYPE_EXTENSION_AND"/>
            <message key="ws.notFollowed"
                     value="WhitespaceAround: ''{0}'' is not followed by whitespace. Empty blocks may only be represented as '{}' when not part of a multi-block statement (4.1.3)"/>
            <message key="ws.notPreceded"
                     value="WhitespaceAround: ''{0}'' is not preceded with whitespace."/>
        </module>
        <module name="OneStatementPerLine"/>
        <module name="MultipleVariableDeclarations"/>
        <module name="ArrayTypeStyle"/>
        <module name="MissingSwitchDefault"/>
        <module name="FallThrough"/>
        <module name="UpperEll"/>
        <module name="ModifierOrder"/>
        <module name="EmptyLineSeparator">
            <property name="tokens"
                      value="PACKAGE_DEF, IMPORT, STATIC_IMPORT, CLASS_DEF, INTERFACE_DEF, ENUM_DEF,
                    STATIC_INIT, INSTANCE_INIT, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
            <property name="allowNoEmptyLineBetweenFields" value="true"/>
            <property name="allowMultipleEmptyLines" value="false"/>
            <property name="allowMultipleEmptyLinesInsideClassMembers" value="false"/>
        </module>
        <module name="SeparatorWrap">
            <property name="id" value="SeparatorWrapDot"/>
            <property name="tokens" value="DOT"/>
            <property name="option" value="nl"/>
        </module>
        <module name="SeparatorWrap">
            <property name="id" value="SeparatorWrapComma"/>
            <property name="tokens" value="COMMA"/>
            <property name="option" value="EOL"/>
        </module>
        <module name="SeparatorWrap">
            <!-- ELLIPSIS is EOL until https://github.com/google/styleguide/issues/258 -->
            <property name="id" value="SeparatorWrapEllipsis"/>
            <property name="tokens" value="ELLIPSIS"/>
            <property name="option" value="EOL"/>
        </module>
        <module name="SeparatorWrap">
            <!-- ARRAY_DECLARATOR is EOL until https://github.com/google/styleguide/issues/259 -->
            <property name="id" value="SeparatorWrapArrayDeclarator"/>
            <property name="tokens" value="ARRAY_DECLARATOR"/>
            <property name="option" value="EOL"/>
        </module>
        <module name="SeparatorWrap">
            <property name="id" value="SeparatorWrapMethodRef"/>
            <property name="tokens" value="METHOD_REF"/>
            <property name="option" value="nl"/>
        </module>
        <module name="PackageName">
            <property name="format" value="^[a-z]+(\.[a-z][a-z0-9]*)*$"/>
            <message key="name.invalidPattern"
                     value="Package name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="TypeName">
            <property name="tokens" value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF"/>
            <message key="name.invalidPattern"
                     value="Type name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="MemberName">
            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
            <message key="name.invalidPattern"
                     value="Member name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="ParameterName">
            <property name="format" value="^[a-z][a-zA-Z0-9]*$"/>
            <message key="name.invalidPattern"
                     value="Parameter name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="LambdaParameterName">
            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
            <message key="name.invalidPattern"
                     value="Lambda parameter name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="CatchParameterName">
            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
            <message key="name.invalidPattern"
                     value="Catch parameter name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="LocalVariableName">
            <property name="format" value="^[a-z]([a-z0-9][a-zA-Z0-9]*)?$"/>
            <message key="name.invalidPattern"
                     value="Local variable name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="ClassTypeParameterName">
            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)|(^[A-Z]{1,2})$"/>
            <message key="name.invalidPattern"
                     value="Class type name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="MethodTypeParameterName">
            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)"/>
            <message key="name.invalidPattern"
                     value="Method type name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="InterfaceTypeParameterName">
            <property name="format" value="(^[A-Z][0-9]?)$|([A-Z][a-zA-Z0-9]*[T]$)|(^[A-Z]{1,2})$"/>
            <message key="name.invalidPattern"
                     value="Interface type name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="MethodName">
            <property name="format" value="^[a-z][a-zA-Z0-9_]*$"/>
            <message key="name.invalidPattern"
                     value="Method name ''{0}'' must match pattern ''{1}''."/>
        </module>
        <module name="NoFinalizer"/>
        <module name="GenericWhitespace">
            <message key="ws.followed"
                     value="GenericWhitespace ''{0}'' is followed by whitespace."/>
            <message key="ws.preceded"
                     value="GenericWhitespace ''{0}'' is preceded with whitespace."/>
            <message key="ws.illegalFollow"
                     value="GenericWhitespace ''{0}'' should followed by whitespace."/>
            <message key="ws.notPreceded"
                     value="GenericWhitespace ''{0}'' is not preceded with whitespace."/>
        </module>
        <module name="Indentation">
            <property name="basicOffset" value="4"/>
            <property name="braceAdjustment" value="0"/>
            <property name="caseIndent" value="4"/>
            <property name="throwsIndent" value="4"/>
            <property name="lineWrappingIndentation" value="4"/>
            <property name="arrayInitIndent" value="4"/>
        </module>
        <module name="AbbreviationAsWordInName">
            <property name="ignoreFinal" value="false"/>
            <property name="allowedAbbreviationLength" value="3"/>
            <property name="tokens"
                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, ANNOTATION_DEF, ANNOTATION_FIELD_DEF,
                    PARAMETER_DEF, VARIABLE_DEF, METHOD_DEF"/>
        </module>
        <module name="OverloadMethodsDeclarationOrder"/>
        <module name="VariableDeclarationUsageDistance"/>
        <module name="CustomImportOrder">
            <property name="customImportOrderRules" value="THIRD_PARTY_PACKAGE###SPECIAL_IMPORTS###STANDARD_JAVA_PACKAGE###STATIC"/>
            <property name="specialImportsRegExp" value="^javax\."/>
            <property name="standardPackageRegExp" value="^java\."/>
            <property name="separateLineBetweenGroups" value="false"/>
            <property name="sortImportsInGroupAlphabetically" value="true"/>
            <property name="tokens" value="IMPORT, STATIC_IMPORT, PACKAGE_DEF"/>
        </module>
        <module name="MethodParamPad">
            <property name="tokens"
                      value="CTOR_DEF, LITERAL_NEW, METHOD_CALL, METHOD_DEF,
                    SUPER_CTOR_CALL, ENUM_CONSTANT_DEF"/>
        </module>
        <module name="NoWhitespaceBefore">
            <property name="tokens"
                      value="COMMA, SEMI, POST_INC, POST_DEC, DOT, ELLIPSIS, METHOD_REF"/>
            <property name="allowLineBreaks" value="true"/>
        </module>
        <module name="ParenPad">
            <property name="tokens"
                      value="ANNOTATION, ANNOTATION_FIELD_DEF, CTOR_CALL, CTOR_DEF, DOT, ENUM_CONSTANT_DEF,
                    EXPR, LITERAL_CATCH, LITERAL_DO, LITERAL_FOR, LITERAL_IF, LITERAL_NEW,
                    LITERAL_SWITCH, LITERAL_SYNCHRONIZED, LITERAL_WHILE, METHOD_CALL,
                    METHOD_DEF, QUESTION, RESOURCE_SPECIFICATION, SUPER_CTOR_CALL, LAMBDA"/>
        </module>
        <module name="OperatorWrap">
            <property name="option" value="NL"/>
            <property name="tokens"
                      value="BAND, BOR, BSR, BXOR, DIV, EQUAL, GE, GT, LAND, LE, LITERAL_INSTANCEOF, LOR,
                    LT, MINUS, MOD, NOT_EQUAL, PLUS, QUESTION, SL, SR, STAR, METHOD_REF "/>
        </module>
        <module name="AnnotationLocation">
            <property name="id" value="AnnotationLocationMostCases"/>
            <property name="tokens"
                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF"/>
        </module>
        <module name="AnnotationLocation">
            <property name="id" value="AnnotationLocationVariables"/>
            <property name="tokens" value="VARIABLE_DEF"/>
            <property name="allowSamelineMultipleAnnotations" value="true"/>
        </module>
        <module name="NonEmptyAtclauseDescription"/>
        <module name="InvalidJavadocPosition"/>
        <module name="JavadocTagContinuationIndentation"/>
        <module name="SummaryJavadoc">
            <property name="forbiddenSummaryFragments"
                      value="^@return the *|^This method returns |^A [{]@code [a-zA-Z0-9]+[}]( is a )"/>
        </module>
        <module name="JavadocParagraph"/>
        <module name="AtclauseOrder">
            <property name="tagOrder" value="@param, @return, @throws, @deprecated"/>
            <property name="target"
                      value="CLASS_DEF, INTERFACE_DEF, ENUM_DEF, METHOD_DEF, CTOR_DEF, VARIABLE_DEF"/>
        </module>
        <module name="JavadocMethod">
            <property name="scope" value="public"/>
            <property name="allowMissingParamTags" value="true"/>
            <property name="allowMissingReturnTag" value="true"/>
            <property name="allowedAnnotations" value="Override, Test"/>
            <property name="tokens" value="METHOD_DEF, CTOR_DEF, ANNOTATION_FIELD_DEF"/>
        </module>
        <module name="SingleLineJavadoc">
            <property name="ignoreInlineTags" value="false"/>
        </module>
        <module name="EmptyCatchBlock">
            <property name="exceptionVariableName" value="expected"/>
        </module>
        <module name="CommentsIndentation">
            <property name="tokens" value="SINGLE_LINE_COMMENT, BLOCK_COMMENT_BEGIN"/>
        </module>
        <!-- https://checkstyle.org/config_filters.html#SuppressionXpathFilter -->
        <module name="SuppressionXpathFilter">
            <property name="file" value="checkstyle-xpath-suppressions.xml"/>
            <property name="optional" value="true"/>
        </module>
    </module>
</module>

Could someone please suggest what should be adjusted to make it work?

Thank you!

ANSWER

Answered 2022-Mar-16 at 16:42

The plugin by default comes with Checkstyle version 8.29. Try explicitly defining the CheckStyle version (plus a small version bump to 3.1.2). For example, with version 9.2:

<plugin>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-checkstyle-plugin</artifactId>
    <version>3.1.2</version>
    <configuration>
       ...
    </configuration>
    <dependencies>
        <dependency>
            <groupId>com.puppycrawl.tools</groupId>
            <artifactId>checkstyle</artifactId>
            <version>9.2</version>
        </dependency>
    </dependencies>
    <executions>
        ...
    </executions>
</plugin>

Source https://stackoverflow.com/questions/71500951

QUESTION

Spring boot 4 controller error: The method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)

Asked 2021-Dec-17 at 00:49

I'am new with spring boot. I'am using Spring boot (4) data JPA and MySQL. The method findall worked fine for me for the class fournisseur but the save method wont work. Here my class:

    package net.javaguides.springboot.model;
    
    import javax.persistence.Column;
    import javax.persistence.Entity;
    import javax.persistence.GeneratedValue;
    import javax.persistence.GenerationType;
    import javax.persistence.Id;
    import javax.persistence.Table;
    
    @Entity
    @Table(name ="fournisseur")
    public class Fournisseur { 
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        private long ID;
        @Column(name="Name")
        private String Name;
        @Column(name="Address")
        private String Address;
        @Column(name="Phone")
        private long Phone;
         
        public Fournisseur() {
            
        }
        public Fournisseur(String name, String address, long phone) {
            super();
            Name = name;
            Address = address;
            Phone = phone;
        }
        public long getID() {
            return ID;
        }
        public void setID(long iD) {
            this.ID = iD;
        }
        public String getName() {
            return Name;
        }
        public void setName(String name) {
            this.Name = name;
        }
        public String getAddress() {
            return Address;
        }
        public void setAddress(String address) {
            this.Address = address;
        }
        public long getPhone() {
            return Phone;
        }
        public void setPhone(long phone) {
            this.Phone = phone;
        }
         
    
    }

Here my Repository:

package net.javaguides.springboot.repository;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import net.javaguides.springboot.model.Fournisseur;
@Repository 
public interface FournisseurRepository extends JpaRepository<Fournisseur,Long>  {
}

Here my controller:

package net.javaguides.springboot.controller;

import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import net.javaguides.springboot.repository.FournisseurRepository;
@CrossOrigin(origins ="http://localhost:4200",maxAge=3600)

@RestController 
@RequestMapping("/api/v1/")
public class FournisseurController<Fournisseur, Fournisseurs> { 
    @Autowired 
    private FournisseurRepository fournisseurRepository;
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private long ID;
    //get all employee
    @GetMapping("/fournisseurs")
    public java.util.List<net .javaguides.springboot.model.Fournisseur> getAllFournisseurs(){
        return  fournisseurRepository.findAll();
    }
    @PostMapping("/fournisseurs")   
    public Fournisseur createFournisseur(@RequestBody Fournisseur fournisseur){
        return fournisseurRepository.save(fournisseur);
    }
}

When running the application and use postman to post data it returns the following error:

{
    "timestamp": "2021-12-13T22:06:19.958+00:00",
    "status": 500,
    "error": "Internal Server Error",
    "trace": "java.lang.Error: Unresolved compilation problem: \n\tThe method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)\n\r\n\tat net.javaguides.springboot.controller.FournisseurController.createFournisseur(FournisseurController.java:33)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\r\n\tat java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)\r\n\tat java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\r\n\tat java.base/java.lang.reflect.Method.invoke(Method.java:568)\r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)\r\n\tat org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)\r\n\tat org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)\r\n\tat org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)\r\n\tat org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)\r\n\tat org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)\r\n\tat org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:681)\r\n\tat org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)\r\n\tat javax.servlet.http.HttpServlet.service(HttpServlet.java:764)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)\r\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)\r\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)\r\n\tat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)\r\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)\r\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)\r\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)\r\n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)\r\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)\r\n\tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357)\r\n\tat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382)\r\n\tat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)\r\n\tat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895)\r\n\tat org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1722)\r\n\tat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)\r\n\tat org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)\r\n\tat org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)\r\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\r\n\tat java.base/java.lang.Thread.run(Thread.java:833)\r\n",
    "message": "Unresolved compilation problem: \n\tThe method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)\n",
    "path": "/api/v1/fournisseurs"
}

And the IDE returns the following:

23:06:03.283 [Thread-0] DEBUG org.springframework.boot.devtools.restart.classloader.RestartClassLoader - Created RestartClassLoader org.springframework.boot.devtools.restart.classloader.RestartClassLoader@33c8d704

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
[32m :: Spring Boot :: [39m              [2m (v2.6.1)[0;39m

[2m2021-12-13 23:06:03.538[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mn.j.springboot.StockApplication         [0;39m [2m:[0;39m Starting StockApplication using Java 17 on DESKTOP-BNFECFD with PID 19252 (C:\STS\Stock\target\classes started by ACER in C:\STS\Stock)
[2m2021-12-13 23:06:03.538[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mn.j.springboot.StockApplication         [0;39m [2m:[0;39m No active profile set, falling back to default profiles: default
[2m2021-12-13 23:06:03.573[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.e.DevToolsPropertyDefaultsPostProcessor[0;39m [2m:[0;39m Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
[2m2021-12-13 23:06:03.573[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.e.DevToolsPropertyDefaultsPostProcessor[0;39m [2m:[0;39m For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
[2m2021-12-13 23:06:03.966[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Bootstrapping Spring Data JPA repositories in DEFAULT mode.
[2m2021-12-13 23:06:04.001[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36m.s.d.r.c.RepositoryConfigurationDelegate[0;39m [2m:[0;39m Finished Spring Data repository scanning in 29 ms. Found 1 JPA repository interfaces.
[2m2021-12-13 23:06:04.374[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.b.w.embedded.tomcat.TomcatWebServer [0;39m [2m:[0;39m Tomcat initialized with port(s): 8080 (http)
[2m2021-12-13 23:06:04.380[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.apache.catalina.core.StandardService  [0;39m [2m:[0;39m Starting service [Tomcat]
[2m2021-12-13 23:06:04.381[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36morg.apache.catalina.core.StandardEngine [0;39m [2m:[0;39m Starting Servlet engine: [Apache Tomcat/9.0.55]
[2m2021-12-13 23:06:04.433[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.a.c.c.C.[Tomcat].[localhost].[/]      [0;39m [2m:[0;39m Initializing Spring embedded WebApplicationContext
[2m2021-12-13 23:06:04.433[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mw.s.c.ServletWebServerApplicationContext[0;39m [2m:[0;39m Root WebApplicationContext: initialization completed in 860 ms
[2m2021-12-13 23:06:04.528[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Starting...
[2m2021-12-13 23:06:04.628[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mcom.zaxxer.hikari.HikariDataSource      [0;39m [2m:[0;39m HikariPool-1 - Start completed.
[2m2021-12-13 23:06:04.655[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.hibernate.jpa.internal.util.LogHelper [0;39m [2m:[0;39m HHH000204: Processing PersistenceUnitInfo [name: default]
[2m2021-12-13 23:06:04.685[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36morg.hibernate.Version                   [0;39m [2m:[0;39m HHH000412: Hibernate ORM core version 5.6.1.Final
[2m2021-12-13 23:06:04.785[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.hibernate.annotations.common.Version  [0;39m [2m:[0;39m HCANN000001: Hibernate Commons Annotations {5.1.2.Final}
[2m2021-12-13 23:06:04.850[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36morg.hibernate.dialect.Dialect           [0;39m [2m:[0;39m HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
[2m2021-12-13 23:06:05.150[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.h.e.t.j.p.i.JtaPlatformInitiator      [0;39m [2m:[0;39m HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
[2m2021-12-13 23:06:05.156[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mj.LocalContainerEntityManagerFactoryBean[0;39m [2m:[0;39m Initialized JPA EntityManagerFactory for persistence unit 'default'
[2m2021-12-13 23:06:05.324[0;39m [33m WARN[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mJpaBaseConfiguration$JpaWebConfiguration[0;39m [2m:[0;39m spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
[2m2021-12-13 23:06:05.512[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.b.d.a.OptionalLiveReloadServer      [0;39m [2m:[0;39m LiveReload server is running on port 35729
[2m2021-12-13 23:06:05.605[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mo.s.b.w.embedded.tomcat.TomcatWebServer [0;39m [2m:[0;39m Tomcat started on port(s): 8080 (http) with context path ''
[2m2021-12-13 23:06:05.612[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[  restartedMain][0;39m [36mn.j.springboot.StockApplication         [0;39m [2m:[0;39m Started StockApplication in 2.323 seconds (JVM running for 3.142)
[2m2021-12-13 23:06:19.900[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[nio-8080-exec-2][0;39m [36mo.a.c.c.C.[Tomcat].[localhost].[/]      [0;39m [2m:[0;39m Initializing Spring DispatcherServlet 'dispatcherServlet'
[2m2021-12-13 23:06:19.900[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[nio-8080-exec-2][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Initializing Servlet 'dispatcherServlet'
[2m2021-12-13 23:06:19.901[0;39m [32m INFO[0;39m [35m19252[0;39m [2m---[0;39m [2m[nio-8080-exec-2][0;39m [36mo.s.web.servlet.DispatcherServlet       [0;39m [2m:[0;39m Completed initialization in 1 ms
[2m2021-12-13 23:06:19.954[0;39m [31mERROR[0;39m [35m19252[0;39m [2m---[0;39m [2m[nio-8080-exec-2][0;39m [36mo.a.c.c.C.[.[.[/].[dispatcherServlet]   [0;39m [2m:[0;39m Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.Error: Unresolved compilation problem: 
    The method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)
] with root cause

java.lang.Error: Unresolved compilation problem: 
    The method save(S) in the type CrudRepository<Fournisseur,Long> is not applicable for the arguments (Fournisseur)

    at net.javaguides.springboot.controller.FournisseurController.createFournisseur(FournisseurController.java:33) ~[classes/:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[na:na]
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
    at java.base/java.lang.reflect.Method.invoke(Method.java:568) ~[na:na]
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-5.3.13.jar:5.3.13]
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150) ~[spring-web-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:681) ~[tomcat-embed-core-9.0.55.jar:4.0.FR]
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.13.jar:5.3.13]
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) ~[tomcat-embed-core-9.0.55.jar:4.0.FR]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.13.jar:5.3.13]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.13.jar:5.3.13]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.13.jar:5.3.13]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.13.jar:5.3.13]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.13.jar:5.3.13]
    at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.13.jar:5.3.13]
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:382) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:895) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1722) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.55.jar:9.0.55]
    at java.base/java.lang.Thread.run(Thread.java:833) ~[na:na]

In the video am following for this example the same code worked. I did some researches and it is possible to create a custom save method, i tried it but always got the same result, in addition it is not recommended to do so. Is there any issue with my class??

ANSWER

Answered 2021-Dec-17 at 00:49

I just changed the controller create fournisseur by:


    //Create Fournisseur
        @PostMapping("/fournisseurs")   
        public net.javaguides.springboot.model.Fournisseur  createFournisseur(@RequestBody net.javaguides.springboot.model.Fournisseur fournisseur){
            @SuppressWarnings("unused")
            net.javaguides.springboot.model.Fournisseur updateFournisseur = fournisseurRepository.save(fournisseur);
            return  fournisseurRepository.save(fournisseur);
        }

and it works :D

Source https://stackoverflow.com/questions/70341577

QUESTION

Couldn't connect Springboot project to Mysql database

Asked 2021-Mar-18 at 14:02

When I run the SpringBoot application in Workspace-Spring-Tool-Suite Mysql Workbench generate all the tables But a Get request in Postman (http://localhost:3308/api/v1/employees) does not return anything but an error (Error: getaddrinfo ENOTFOUND http)

Mysql Xampp is Running on port: 3308

UPDATE now the connection is working and generating tables on MYSQL workbench but the localhost's problem still exists it returns ERR_INVALID_HTTP_RESPONSE The WORST is a new problem while running SpringBoot App:ERROR

Description: Web server failed to start. Port 3308 was already in use. Action: Identify and stop the process that's listening on port 3308 or configure this application to listen on another port.

NB: I didn't use port 3308 for any other service.

application.properties

spring.datasource.url=jdbc:mysql://localhost:3308/employee_management_system? 
 useSSL=false
spring.datasource.username=root
spring.datasource.password=
spring.jpa.properties.hibernate.dialect = org.hibernate.dialect.MySQL5InnoDBDialect
spring.jpa.hibernate.ddl-auto = update
server.port=3308

Controller class

package net.javaguides.springboot.controller;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import net.javaguides.springboot.model.Employee;
import net.javaguides.springboot.repository.EmployeeRepository;

@CrossOrigin(origins = "http://localhost:3308")
@RestController
@RequestMapping("/api/v1")
public class EmployeeController {

@Autowired
private EmployeeRepository employeeRepository;

// get all employees
@GetMapping("/employees")
public List<Employee> getAllEmployees(){
    return employeeRepository.findAll();
}       }

Running Springboot Application Running Spring-Boot application

Employee Class

package net.javaguides.springboot.model;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;
@Entity
@Table(name = "employees")
public class Employee {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private long id;

@Column(name = "first_name")
private String firstName;

@Column(name = "last_name")
private String lastName;

@Column(name = "email_id")
private String emailId;

public Employee() {
    
}

public Employee(String firstName, String lastName, String emailId) {
    super();
    this.firstName = firstName;
    this.lastName = lastName;
    this.emailId = emailId;
}
public long getId() {
    return id;
}
public void setId(long id) {
    this.id = id;
}
public String getFirstName() {
    return firstName;
}
public void setFirstName(String firstName) {
    this.firstName = firstName;
}
public String getLastName() {
    return lastName;
}
public void setLastName(String lastName) {
    this.lastName = lastName;
}
public String getEmailId() {
    return emailId;
}
public void setEmailId(String emailId) {
    this.emailId = emailId;
}}

Employee Repository Class

package net.javaguides.springboot.repository;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import net.javaguides.springboot.model.Employee;

@Repository
public interface EmployeeRepository extends JpaRepository<Employee, Long>{ }

ANSWER

Answered 2021-Mar-18 at 14:02

Just replace

@CrossOrigin(origins = "http://localhost:3308")

by

@CrossOrigin(origins = "*")

and use a different port for your application rather than the same port used for accessing your DB

server.port=8081

Source https://stackoverflow.com/questions/66683470

QUESTION

h2 database persists data but resets on application start

Asked 2021-Jan-26 at 10:18

I have a basic test for an embedded database that I'm trying to get working for a java project. As it stands now I am able to save rows to the database with my entity repository object, and after the app finishes running, I can connect to the database with intellij and see those rows are still there. But then, if I comment out the save methods and run it again, when I check the database after it finishes, the database is empty.

Entity

package closet.utilities.entities;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "outfits")
public class Outfit {

    @Id
    @Column(name = "id")
    String id;

    @Column(name = "inv_name")
    String invName;

    @Column(name = "display_name")
    String displayName;

    @Column(name = "owner")
    String owner;

    public Outfit() {
    }

    public Outfit(String id, String invName, String displayName, String owner) {
        this.id = id;
        this.invName = invName;
        this.displayName = displayName;
        this.owner = owner;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getInvName() {
        return invName;
    }

    public void setInvName(String invName) {
        this.invName = invName;
    }

    public String getDisplayName() {
        return displayName;
    }

    public void setDisplayName(String displayName) {
        this.displayName = displayName;
    }

    public String getOwner() {
        return owner;
    }

    public void setOwner(String owner) {
        this.owner = owner;
    }

    @Override
    public String toString() {
        return "Outfit{" +
                "id='" + id + '\'' +
                ", invName='" + invName + '\'' +
                ", displayName='" + displayName + '\'' +
                ", owner='" + owner + '\'' +
                '}';
    }
}

Repository

package closet.utilities.repositories;

import closet.utilities.entities.Outfit;

import javax.persistence.EntityManager;
import java.util.List;
import java.util.Optional;

public class OutfitRepository {

    private EntityManager entityManager;

    public OutfitRepository(EntityManager entityManager) {
        this.entityManager = entityManager;
    }

    public Optional<Outfit> findById(String id) {
        Outfit outfit = entityManager.find(Outfit.class, id);
        return outfit != null ? Optional.of(outfit) : Optional.empty();
    }

    public List<Outfit> findAll() {
        return entityManager.createQuery("from Outfit").getResultList();
    }

    public Optional<Outfit> save(Outfit outfit) {
        try {
            entityManager.getTransaction().begin();
            entityManager.persist(outfit);
            entityManager.getTransaction().commit();
            return Optional.of(outfit);
        } catch (Exception e) {
            // TODO logging
            e.printStackTrace();
        }
        return Optional.empty();
    }
}

main method

package closet.utilities;

import closet.utilities.entities.Outfit;
import closet.utilities.repositories.OutfitRepository;
import org.hibernate.Session;
import org.hibernate.Transaction;

import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.Persistence;
import java.util.List;

public class Runnable {

    public static void main(String[] args) {

        // Create our entity manager
        EntityManagerFactory entityManagerFactory = Persistence.createEntityManagerFactory("closet");
        EntityManager entityManager = entityManagerFactory.createEntityManager();


        Outfit outfit = new Outfit("Ramesh", "Fadatare", "rameshfadatare@javaguides.com", "");
        Outfit outfit1 = new Outfit("John", "Cena", "john@javaguides.com", "");
        OutfitRepository outfitRepository = new OutfitRepository(entityManager);
        //outfitRepository.save(outfit);
        //outfitRepository.save(outfit1);

        List<Outfit> outfits = outfitRepository.findAll();

        for (Outfit o : outfits) {
            System.out.println(o.getInvName());
        }

    }
}

persistence.xml

<persistence xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
                      http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
             version="2.0" xmlns="http://java.sun.com/xml/ns/persistence">

    <persistence-unit name="closet" transaction-type="RESOURCE_LOCAL">
        <provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
        <class>closet.utilities.entities.Outfit</class>
        <properties>
            <property name="javax.persistence.jdbc.driver" value="org.h2.Driver" />
            <property name="javax.persistence.jdbc.url"    value="jdbc:h2:./data/closet" />
            <property name="javax.persistence.jdbc.user" value="sa" />
            <property name="javax.persistence.jdbc.password" value="" />

            <property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect"/>
            <property name="hibernate.hbm2ddl.auto" value="create-drop" />
            <property name="show_sql" value="true"/>
            <property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
        </properties>
    </persistence-unit>
</persistence>

hibernate.cfg.xml

<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
    <session-factory>
        <!-- JDBC Database connection settings -->
        <property name="connection.driver_class">org.h2.Driver</property>
        <property name="connection.url">jdbc:h2:./data/closet</property>
        <property name="connection.username">sa</property>
        <property name="connection.password"></property>
        <!-- JDBC connection pool settings ... using built-in test pool -->
        <property name="connection.pool_size">1</property>
        <!-- Select our SQL dialect -->
        <property name="dialect">org.hibernate.dialect.H2Dialect</property>
        <!-- Echo the SQL to stdout -->
        <property name="show_sql">true</property>
        <!-- Set the current session context -->
        <property name="current_session_context_class">thread</property>
        <!-- Drop and re-create the database schema on startup -->
        <property name="hbm2ddl.auto">create-drop</property>
        <!-- dbcp connection pool configuration -->
        <property name="hibernate.dbcp.initialSize">5</property>
        <property name="hibernate.dbcp.maxTotal">20</property>
        <property name="hibernate.dbcp.maxIdle">10</property>
        <property name="hibernate.dbcp.minIdle">5</property>
        <property name="hibernate.dbcp.maxWaitMillis">-1</property>
        <mapping class="closet.utilities.entities.Outfit" />
    </session-factory>
</hibernate-configuration>

I'm just following this tutorial here as a guide to just figure out how to get it all working. I can't see what I'm doing wrong based on that.

ANSWER

Answered 2021-Jan-25 at 22:18

You use:

<property name="hbm2ddl.auto">create-drop</property>

As it is stated in the documentation:

create-drop

Drop the schema and recreate it on SessionFactory startup. Additionally, drop the schema on SessionFactory shutdown.

So, this is expected behaviour.

Source https://stackoverflow.com/questions/65892722

QUESTION

Angular requests blocked by CORS policy only under certain conditions

Asked 2021-Jan-08 at 15:03

Hi I've created an Angular app with a Spring Boot/Spring Security backend using this guide:

https://www.javaguides.net/2019/04/spring-boot-spring-security-angular-example-tutorial.html

In my Controller class I have the following simple method to request:

    @GetMapping("/test/{gameId}")
    @CrossOrigin(origins = "http://localhost:4200")
    public ResponseMessage test(@PathVariable int gameId) {
        return new ResponseMessage("HelloMessage", "Hello there id=" + gameId);
    }

I've added a .permitAll() to the test route:

    protected void configure(HttpSecurity http) throws Exception {
        http.csrf()
            .disable()
            .authorizeRequests()
            .antMatchers(HttpMethod.OPTIONS, "/**")
            .permitAll()
            .antMatchers("/api/v1/**")
            .permitAll()
            .antMatchers("/test/**")
            .permitAll()
            .anyRequest()
            .authenticated()
            .and()
            .httpBasic();
    }

On my Angular frontend I have a simple method on the homepage to test the method:

  doSomething() {
    console.log("Doing something...");
    this.http.get("http://localhost:8080/test/75154").subscribe((data) => {
        console.log(data);
    });
  }

Problem 1: CORS policy error when both logged in and page is refreshed

If I run my page and click the button as a logged-out user, I get the expected response:

{type: "HelloMessage", message: "Hello there id=75154", data: null}

If I then log in, return to the home page and click the button again, the response still works. The problem is when I refresh the page - I am still logged in, but now requests are blocked by CORS policy:

Access to XMLHttpRequest at 'http://localhost:8080/test/75154' from origin 'http://localhost:4200' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
zone-evergreen.js:2845 GET http://localhost:8080/test/75154 net::ERR_FAILED
core.js:4352 ERROR 
HttpErrorResponse {headers: HttpHeaders, status: 0, statusText: "Unknown Error", url: "http://localhost:8080/test/75154", ok: false, …}
error: ProgressEvent {isTrusted: true, lengthComputable: false, loaded: 0, total: 0, type: "error", …}
headers: HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, headers: Map(0)}
message: "Http failure response for http://localhost:8080/test/75154: 0 Unknown Error"
name: "HttpErrorResponse"
ok: false
status: 0
statusText: "Unknown Error"
url: "http://localhost:8080/test/75154"

If I click logout and return to the homepage, I can once again receive requests from the backend without this error message. POSTMAN can receive the requests as well.

Problem 2: Securing /test also gives CORS errors rather than unauthorised response If I remove the 2 lines from the configure method to permitAll the test path, I get the expected response in POSTMAN that the path is now unauthorised:

{
    "timestamp": "2021-01-08T12:05:54.665+00:00",
    "status": 401,
    "error": "Unauthorized",
    "message": "Unauthorized",
    "path": "/test/5"
}

However, in the Angular app itself I'm getting CORS policy errors instead of the unauthorised JSON. I can log in and get the correct response, but I still have issue with problem 1 whereby refreshing the page returns the CORS policy error. Again, logging out then logging back in will fix the issue until the page is refreshed.

The HttpInterceptor and AuthService classes are as shown in the guide in the link above.

ANSWER

Answered 2021-Jan-08 at 15:03

Downloaded tutorial and it was working out of the box.

Now to the problem, it is possible to recreate the problem without adding your code by performing a hard refresh of the Hello World page after login.

The reason for this, is that the author of this tutorial has not included code for storing credentials in localStorage. Hence, when page is reloaded, client app looses credentials stored in state, and pre-flight requests are denied which in turn causes CORS-error.

So, there is no error, just some code missing in order to make it work according to your requirements.

Maybe ask a new question on how to persist credentials to localStorage in Angular (I'm not that good with Angular).

Source https://stackoverflow.com/questions/65628768

QUESTION

javax/xml/bind/JAXBException

Asked 2020-Dec-25 at 23:00

I created dynamic project by using Eclipse. In this project , I have added the hibernate Configuration for mysql database. I am using the servlet for crud operations. I know in maven project the required dependency can be added but not for web applications. I have added the Java.persistance jar files into lib folder. Here is the project structure..

Here is the Hibernate code.

package net.javaguides.usermanagement.utl;

import java.util.Properties;

import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.service.ServiceRegistry;

import net.javaguides.usermanagement.model.User;

/**
 * Java based configuration
 * @author ramesh Fadatare
 *
 */
public class HibernateUtil {
 private static SessionFactory sessionFactory;

 public static SessionFactory getSessionFactory() {
  if (sessionFactory == null) {
   try {
    Configuration configuration = new Configuration();

    // Hibernate settings equivalent to hibernate.cfg.xml's properties
    Properties settings = new Properties();
    settings.put(Environment.DRIVER, "com.mysql.jdbc.Driver");
    settings.put(Environment.URL, "jdbc:mysql://localhost:3306/demo?useSSL=false");
    settings.put(Environment.USER, "root");
    settings.put(Environment.PASS, "");
    settings.put(Environment.DIALECT, "org.hibernate.dialect.MySQL5Dialect");

    settings.put(Environment.SHOW_SQL, "true");

    settings.put(Environment.CURRENT_SESSION_CONTEXT_CLASS, "thread");

    settings.put(Environment.HBM2DDL_AUTO, "create-drop");

    configuration.setProperties(settings);
    configuration.addAnnotatedClass(User.class);

    ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
      .applySettings(configuration.getProperties()).build();
    System.out.println("Hibernate Java Config serviceRegistry created");
    sessionFactory = configuration.buildSessionFactory(serviceRegistry);
    return sessionFactory;

   } catch (Exception e) {
    e.printStackTrace();
   }
  }
  return sessionFactory;
 }
}

Here is the servlet.

package net.javaguides.usermanagement.web;

import java.io.IOException;
import java.sql.SQLException;
import java.util.List;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import net.javaguides.usermanagement.dao.UserDao;
import net.javaguides.usermanagement.model.User;

/**
 * ControllerServlet.java
 * This servlet acts as a page controller for the application, handling all
 * requests from the user.
 * @email Ramesh Fadatare
 */

@WebServlet("/")
public class UserServlet extends HttpServlet {
    private static final long serialVersionUID = 1L;
    private UserDao userDao;

    public void init() {
        userDao = new UserDao();
    }

    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        doGet(request, response);
    }

    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        String action = request.getServletPath();

        try {
            switch (action) {
                case "/new":
                    showNewForm(request, response);
                    break;
                case "/insert":
                    insertUser(request, response);
                    break;
                case "/delete":
                    deleteUser(request, response);
                    break;
                case "/edit":
                    showEditForm(request, response);
                    break;
                case "/update":
                    updateUser(request, response);
                    break;
                default:
                    listUser(request, response);
                    break;
            }
        } catch (SQLException ex) {
            throw new ServletException(ex);
        }
    }

    private void listUser(HttpServletRequest request, HttpServletResponse response)
    throws SQLException, IOException, ServletException {
        List < User > listUser = userDao.getAllUser();
        request.setAttribute("listUser", listUser);
        RequestDispatcher dispatcher = request.getRequestDispatcher("user-list.jsp");
        dispatcher.forward(request, response);
    }

    private void showNewForm(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        RequestDispatcher dispatcher = request.getRequestDispatcher("user-form.jsp");
        dispatcher.forward(request, response);
    }

    private void showEditForm(HttpServletRequest request, HttpServletResponse response)
    throws SQLException, ServletException, IOException {
        int id = Integer.parseInt(request.getParameter("id"));
        User existingUser = userDao.getUser(id);
        RequestDispatcher dispatcher = request.getRequestDispatcher("user-form.jsp");
        request.setAttribute("user", existingUser);
        dispatcher.forward(request, response);

    }

    private void insertUser(HttpServletRequest request, HttpServletResponse response)
    throws SQLException, IOException {
        String name = request.getParameter("name");
        String email = request.getParameter("email");
        String country = request.getParameter("country");
        User newUser = new User(name, email, country);
        userDao.saveUser(newUser);
        response.sendRedirect("list");
    }

    private void updateUser(HttpServletRequest request, HttpServletResponse response)
    throws SQLException, IOException {
        int id = Integer.parseInt(request.getParameter("id"));
        String name = request.getParameter("name");
        String email = request.getParameter("email");
        String country = request.getParameter("country");

        User user = new User(id, name, email, country);
        userDao.updateUser(user);
        response.sendRedirect("list");
    }

    private void deleteUser(HttpServletRequest request, HttpServletResponse response)
    throws SQLException, IOException {
        int id = Integer.parseInt(request.getParameter("id"));
        userDao.deleteUser(id);
        response.sendRedirect("list");
    }
}

Here is the result when I run the applications.

ANSWER

Answered 2020-Dec-25 at 23:00

As @andrewjames pointed out, you need to download the JAXB-API library and an implementation, they are required by Hibernate.

Although you do not use Maven for dependency management, you can download the corresponding artifacts by clicking in the jar link that you can find in the Files row in the HTML table presented in the artifact page.

You need to download:

The JAXB-API
A JAXB Runtime, for instance, the reference implementation from Glassfish.

You already have javax.activation in your dependencies. It is required by JAXB-API.

Source https://stackoverflow.com/questions/65452195

QUESTION

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES) Spring boot

Asked 2020-Sep-21 at 22:28

I searched a lot concerning this problem but I didnt find any good solution for me

My database name: employee_management_system

My Application.properties:

spring.datasource.url=jdbc:mysql://localhost:3306/employee_management_system
spring.datasource.username=root
spring.datasource.password=root  
spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.MySQLInnoDBDialect
spring.jpa.hibernate.ddl-auto=update

My connexion to DB:

Host:127.0.0.1
Port:3306
user:root
password:root
SSL: enabled with TLS_AES_256_GCM_SHA384

Run details:

2020-09-21 21:50:14.752  INFO 4468 --- [  restartedMain] n.j.s.SpringbootBackendApplication       : Starting SpringbootBackendApplication on DESKTOP-14EIKT2 with PID 4468 (C:\Users\L480\Desktop\Springboot-Backend\target\classes started by L480 in C:\Users\L480\Desktop\Springboot-Backend)
2020-09-21 21:50:14.755  INFO 4468 --- [  restartedMain] n.j.s.SpringbootBackendApplication       : No active profile set, falling back to default profiles: default
2020-09-21 21:50:14.816  INFO 4468 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-09-21 21:50:14.816  INFO 4468 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-09-21 21:50:15.623  INFO 4468 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data JPA repositories in DEFERRED mode.
2020-09-21 21:50:15.682  INFO 4468 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 51ms. Found 1 JPA repository interfaces.
2020-09-21 21:50:16.332  INFO 4468 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-09-21 21:50:16.345  INFO 4468 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-09-21 21:50:16.345  INFO 4468 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.37]
2020-09-21 21:50:16.476  INFO 4468 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-09-21 21:50:16.477  INFO 4468 --- [  restartedMain] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 1660 ms
2020-09-21 21:50:16.663  INFO 4468 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2020-09-21 21:50:16.720  INFO 4468 --- [         task-1] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2020-09-21 21:50:16.765  WARN 4468 --- [  restartedMain] JpaBaseConfiguration$JpaWebConfiguration : spring.jpa.open-in-view is enabled by default. Therefore, database queries may be performed during view rendering. Explicitly configure spring.jpa.open-in-view to disable this warning
2020-09-21 21:50:16.778  INFO 4468 --- [         task-1] org.hibernate.Version                    : HHH000412: Hibernate ORM core version 5.4.20.Final
2020-09-21 21:50:16.956  INFO 4468 --- [         task-1] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2020-09-21 21:50:17.082  INFO 4468 --- [         task-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2020-09-21 21:50:17.180  INFO 4468 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2020-09-21 21:50:17.227  INFO 4468 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 8080 (http) with context path ''
2020-09-21 21:50:17.229  INFO 4468 --- [  restartedMain] DeferredRepositoryInitializationListener : Triggering deferred initialization of Spring Data repositories…
2020-09-21 21:50:18.540 ERROR 4468 --- [         task-1] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na]
    at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:68) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator.initiateService(JdbcEnvironmentInitiator.java:35) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.boot.registry.internal.StandardServiceRegistryImpl.initiateService(StandardServiceRegistryImpl.java:101) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.createService(AbstractServiceRegistryImpl.java:263) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:237) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.id.factory.internal.DefaultIdentifierGeneratorFactory.injectServices(DefaultIdentifierGeneratorFactory.java:152) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.injectDependencies(AbstractServiceRegistryImpl.java:286) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.initializeService(AbstractServiceRegistryImpl.java:243) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:214) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.boot.internal.InFlightMetadataCollectorImpl.<init>(InFlightMetadataCollectorImpl.java:176) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.complete(MetadataBuildingProcess.java:118) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.metadata(EntityManagerFactoryBuilderImpl.java:1224) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1255) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:391) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
    at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

2020-09-21 21:50:18.542  WARN 4468 --- [         task-1] o.h.e.j.e.i.JdbcEnvironmentInitiator     : HHH000342: Could not obtain connection to query metadata : Access denied for user 'root'@'localhost' (using password: YES)
2020-09-21 21:50:18.573  INFO 4468 --- [         task-1] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQLInnoDBDialect
2020-09-21 21:50:19.163  INFO 4468 --- [         task-1] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2020-09-21 21:50:20.200 ERROR 4468 --- [         task-1] com.zaxxer.hikari.pool.HikariPool        : HikariPool-1 - Exception during pool initialization.

java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: YES)
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:122) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:197) ~[mysql-connector-java-8.0.21.jar:8.0.21]
    at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:358) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:206) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:477) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:560) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) ~[HikariCP-3.4.5.jar:na]
    at org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.engine.jdbc.env.internal.JdbcEnvironmentInitiator$ConnectionProviderJdbcConnectionAccess.obtainConnection(JdbcEnvironmentInitiator.java:180) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.resource.transaction.backend.jdbc.internal.DdlTransactionIsolatorNonJtaImpl.getIsolatedConnection(DdlTransactionIsolatorNonJtaImpl.java:43) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcConnection(ImprovedExtractionContextImpl.java:60) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.internal.exec.ImprovedExtractionContextImpl.getJdbcDatabaseMetaData(ImprovedExtractionContextImpl.java:67) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.extract.internal.InformationExtractorJdbcDatabaseMetaDataImpl.getTables(InformationExtractorJdbcDatabaseMetaDataImpl.java:333) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.extract.internal.DatabaseInformationImpl.getTablesInformation(DatabaseInformationImpl.java:120) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.internal.GroupedSchemaMigratorImpl.performTablesMigration(GroupedSchemaMigratorImpl.java:65) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.performMigration(AbstractSchemaMigrator.java:207) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.internal.AbstractSchemaMigrator.doMigration(AbstractSchemaMigrator.java:114) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.performDatabaseAction(SchemaManagementToolCoordinator.java:184) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.tool.schema.spi.SchemaManagementToolCoordinator.process(SchemaManagementToolCoordinator.java:73) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.internal.SessionFactoryImpl.<init>(SessionFactoryImpl.java:316) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.boot.internal.SessionFactoryBuilderImpl.build(SessionFactoryBuilderImpl.java:469) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.build(EntityManagerFactoryBuilderImpl.java:1259) ~[hibernate-core-5.4.20.Final.jar:5.4.20.Final]
    at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:58) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:365) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:391) ~[spring-orm-5.2.8.RELEASE.jar:5.2.8.RELEASE]
    at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[na:na]
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1130) ~[na:na]
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:630) ~[na:na]
    at java.base/java.lang.Thread.run(Thread.java:832) ~[na:na]

2020-09-21 21:50:20.203  WARN 4468 --- [         task-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 1045, SQLState: 28000
2020-09-21 21:50:20.203 ERROR 4468 --- [         task-1] o.h.engine.jdbc.spi.SqlExceptionHelper   : Access denied for user 'root'@'localhost' (using password: YES)
2020-09-21 21:50:20.218  WARN 4468 --- [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeDao' defined in net.javaguides.springboot.dao.EmployeeDao defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution
2020-09-21 21:50:20.221  INFO 4468 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Closing JPA EntityManagerFactory for persistence unit 'default'
2020-09-21 21:50:20.222  WARN 4468 --- [  restartedMain] o.s.b.f.support.DisposableBeanAdapter    : Invocation of destroy method failed on bean with name 'entityManagerFactory': javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution
2020-09-21 21:50:20.222  INFO 4468 --- [  restartedMain] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
2020-09-21 21:50:20.253  INFO 4468 --- [  restartedMain] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2020-09-21 21:50:20.268  INFO 4468 --- [  restartedMain] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-09-21 21:50:20.272 ERROR 4468 --- [  restartedMain] o.s.boot.SpringApplication               : Application run failed

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'employeeDao' defined in net.javaguides.springboot.dao.EmployeeDao defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Cannot resolve reference to bean 'jpaMappingContext' while setting bean property 'mappingContext'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jpaMappingContext': Invocation of init method failed; nested exception is javax.persistence.PersistenceException: [PersistenceUnit: default] Unable to build Hibernate SessionFactory; nested exception is org.hibernate.exception.GenericJDBCException: Unable to open JDBC Connection for DDL execution....................



Process finished with exit code 0

I have one entity employee in model and one interface employeeDao in repository which inherits one method from jpaRepository findALL used in one class EmployeeController controller folder.

ANSWER

Answered 2020-Sep-21 at 22:28

This error is not related to Spring Framework or Spring Boot. The root cause is your MySQL configuration.

TLRD: you need to grant access to the root user from localhost. The same issue was asked and answered many times on StackOverflow already 1, 2, ...

You can try to configure you application like the following in order to fix your problem:

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/employee_management_system

Source https://stackoverflow.com/questions/64000042

QUESTION

org.springframework.beans.factory.UnsatisfiedDependencyException: error after adding new repository

Asked 2020-Aug-27 at 15:01

Hello im trying to work on a project first of all it was all smooth when i worked on a single model as you see below "Student"

StudentController

package net.springboot.javaguides.controller;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import net.springboot.javaguides.entity.Student;
import net.springboot.javaguides.repository.StudentRepository;

@Controller
@RequestMapping("/students/")
public class StudentController {

    @Autowired
    private StudentRepository studentRepository;    
    
    @GetMapping("showForm")
    public String showStudentForm(Student student) {
        return "student/add-student";
    }
    
    @GetMapping("list")
    public String students(Model model) {
        model.addAttribute("students", this.studentRepository.findAll());
        return "student/index";
    }
    
    @PostMapping("add")
    public String addStudent(@Valid Student student, BindingResult result, Model model) {
        if(result.hasErrors()) {
            return "student/add-student";
        }
        
        this.studentRepository.save(student);
        return "redirect:list";
    }
    
    
    @GetMapping("edit/{id}")
    public String showUpdateForm(@PathVariable ("id") long id, Model model) {
        Student student = this.studentRepository.findById(id)
                .orElseThrow(() -> new IllegalArgumentException("Invalid student id : " + id));
        
        model.addAttribute("student", student);
        return "student/update-student";
    }
    
    @PostMapping("update/{id}")
    public String updateStudent(@PathVariable("id") long id, @Valid Student student, BindingResult result, Model model) {
        if(result.hasErrors()) {
            student.setId(id);
            return "student/update-student";
        }
        
        // update student
        studentRepository.save(student);
        
        // get all students ( with update)
        model.addAttribute("students", this.studentRepository.findAll());
        return "student/index";
    }
    
    @GetMapping("delete/{id}")
    public String deleteStudent(@PathVariable ("id") long id, Model model) {
        
        Student student = this.studentRepository.findById(id)
                .orElseThrow(() -> new IllegalArgumentException("Invalid student id : " + id));
        
        this.studentRepository.delete(student);
        model.addAttribute("students", this.studentRepository.findAll());
        return "student/index";
        
    }
}

StudentEntity

package net.springboot.javaguides.entity;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "students")
public class Student {
    
    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private long id;
    
    @Column(name = "name")
    private String name;
    
    @Column(name = "email")
    private String email;
    
    @Column(name = "phone_no")
    private long phoneNo;
    
    
    public Student() {
        super();
    }

    public Student(String name, String email) {
        super();
        this.name = name;
        this.email = email;
    }
    
    public long getId() {
        return id;
    }
    public void setId(long id) {
        this.id = id;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    public long getPhoneNo() {
        return phoneNo;
    }
    public void setPhoneNo(long phoneNo) {
        this.phoneNo = phoneNo;
    }
}

StudentRepository

package net.springboot.javaguides.repository;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import net.springboot.javaguides.entity.Student;

@Repository
public interface StudentRepository extends JpaRepository<Student, Long>{
    List<Student> findByName(String name);
}

and now im trying to add some new model as you see below but im having error from it :

CourseController

package net.springboot.javaguides.controller;

import javax.validation.Valid;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;

import net.springboot.javaguides.entity.Course;
import net.springboot.javaguides.repository.CourseRepository;

@Controller
@RequestMapping("/courses/")
public class CourseController {

    @Autowired
    private CourseRepository courseRepository;  
    
    @GetMapping("showForm")
    public String showCourseForm(Course course) {
        return "add-course";
    }
    
    @GetMapping("list")
    public String courses(Model model) {
        model.addAttribute("courses", this.courseRepository.findAll());
        return "index";
    }
    
    @PostMapping("add")
    public String addCourse(@Valid Course course, BindingResult result, Model model) {
        if(result.hasErrors()) {
            return "add-course";
        }
        
        this.courseRepository.save(course);
        return "redirect:list";
    }
    
    
    @GetMapping("edit/{id}")
    public String showUpdateForm(@PathVariable ("id") long id, Model model) {
        Course course = this.courseRepository.findById(id)
                .orElseThrow(() -> new IllegalArgumentException("Invalid course id : " + id));
        
        model.addAttribute("course", course);
        return "update-course";
    }
    
    @PostMapping("update/{id}")
    public String updateCourse(@PathVariable("id") long id, @Valid Course course, BindingResult result, Model model) {
        if(result.hasErrors()) {
            course.setId(id);
            return "update-course";
        }
        
        // update course
        courseRepository.save(course);
        
        // get all courses ( with update)
        model.addAttribute("courses", this.courseRepository.findAll());
        return "index";
    }
    
    @GetMapping("delete/{id}")
    public String deleteCourse(@PathVariable ("id") long id, Model model) {
        
        Course course = this.courseRepository.findById(id)
                .orElseThrow(() -> new IllegalArgumentException("Invalid course id : " + id));
        
        this.courseRepository.delete(course);
        model.addAttribute("courses", this.courseRepository.findAll());
        return "index";
        
    }
}

CourseEntity

package net.springboot.javaguides.entity;


import java.sql.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table(name = "Courses")
public class Course {
    
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
    
        @Column(name = "cours_name")
     private String cours_name;
     
        @Column(name = "date_debut")
     private Date date_debut;
     
        @Column(name = "date_fin")
     private Date date_fin;
     
        @Column(name = "enseignant")
     private String enseignant;
     
        @Column(name = "type_cours")
     private String type_cours;
     
        @Column(name = "filliere")
     private String filliere;
    
     public Course() {
         super();
     }
     
     public Course(String cours_name, Date date_debut, Date date_fin, String enseignant, String type_cours,
            String filliere) {
        super();
        this.cours_name = cours_name;
        this.date_debut = date_debut;
        this.date_fin = date_fin;
        this.enseignant = enseignant;
        this.type_cours = type_cours;
        this.filliere = filliere;
    }
        
     
     public Long getId() {
        return id;
    }
    public String getCours_name() {
        return cours_name;
    }

    public void setCours_name(String cours_name) {
        this.cours_name = cours_name;
    }

    public Date getDate_debut() {
        return date_debut;
    }

    public void setDate_debut(Date date_debut) {
        this.date_debut = date_debut;
    }

    public Date getDate_fin() {
        return date_fin;
    }

    public void setDate_fin(Date date_fin) {
        this.date_fin = date_fin;
    }

    public String getEnseignant() {
        return enseignant;
    }

    public void setEnseignant(String enseignant) {
        this.enseignant = enseignant;
    }

    public String getType_cours() {
        return type_cours;
    }

    public void setType_cours(String type_cours) {
        this.type_cours = type_cours;
    }

    public String getfilliere() {
        return filliere;
    }

    public void setfilliere(String filliere) {
        this.filliere = filliere;
    }

    public void setId(Long id) {
        this.id = id;
    }
    
    
     
}

**

CourseRepository

**

package net.springboot.javaguides.repository;

import java.util.List;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import net.springboot.javaguides.entity.Course;

@Repository
public interface CourseRepository extends JpaRepository<Course, Long>{
    List<Course> findByName(String cours_name);
}

but im having this error


  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v2.1.0.RELEASE)

2020-08-27 13:44:03.876  INFO 9188 --- [  restartedMain] s.j.SpringbootThymeleafWebAppApplication : Starting SpringbootThymeleafWebAppApplication on DESKTOP-5D7IMCJ with PID 9188 (C:\Users\yassi\Desktop\workspacenew\springboot-thymeleaf-web-app-master\target\classes started by yassi in C:\Users\yassi\Desktop\workspacenew\springboot-thymeleaf-web-app-master)
2020-08-27 13:44:03.880  INFO 9188 --- [  restartedMain] s.j.SpringbootThymeleafWebAppApplication : No active profile set, falling back to default profiles: default
2020-08-27 13:44:03.941  INFO 9188 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : Devtools property defaults active! Set 'spring.devtools.add-properties' to 'false' to disable
2020-08-27 13:44:03.941  INFO 9188 --- [  restartedMain] .e.DevToolsPropertyDefaultsPostProcessor : For additional web related logging consider setting the 'logging.level.web' property to 'DEBUG'
2020-08-27 13:44:04.881  INFO 9188 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Bootstrapping Spring Data repositories in DEFAULT mode.
2020-08-27 13:44:04.957  INFO 9188 --- [  restartedMain] .s.d.r.c.RepositoryConfigurationDelegate : Finished Spring Data repository scanning in 68ms. Found 2 repository interfaces.
2020-08-27 13:44:05.415  INFO 9188 --- [  restartedMain] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$97fbb782] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2020-08-27 13:44:05.849  INFO 9188 --- [  restartedMain] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-08-27 13:44:05.868  INFO 9188 --- [  restartedMain] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-08-27 13:44:05.868  INFO 9188 --- [  restartedMain] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/9.0.12
2020-08-27 13:44:05.876  INFO 9188 --- [  restartedMain] o.a.catalina.core.AprLifecycleListener   : The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: [C:\Program Files\Java\jre1.8.0_221\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_221/bin/server;C:/Program Files/Java/jre1.8.0_221/bin;C:/Program Files/Java/jre1.8.0_221/lib/amd64;C:\oraclexe\app\oracle\product\11.2.0\server\bin;C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program Files\Microsoft SQL Server\Client SDK\ODBC\110\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files\Microsoft SQL Server\120\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files\Microsoft SQL Server\120\DTS\Binn\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\ManagementStudio\;C:\Program Files (x86)\Microsoft SQL Server\110\Tools\Binn\;C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\PrivateAssemblies\;C:\Program Files (x86)\Microsoft SQL Server\110\DTS\Binn\;C:\Program Files\Git\cmd;C:\Program Files\nodejs\;C:\Program Files\MySQL\MySQL Server 5.1\bin;C:\Users\yassi\AppData\Local\Microsoft\WindowsApps;;C:\Users\yassi\AppData\Local\Programs\Microsoft VS Code\bin;D:\eclipse;;.]
2020-08-27 13:44:05.990  INFO 9188 --- [  restartedMain] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-08-27 13:44:05.990  INFO 9188 --- [  restartedMain] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2049 ms
2020-08-27 13:44:06.025  INFO 9188 --- [  restartedMain] o.s.b.w.servlet.ServletRegistrationBean  : Servlet dispatcherServlet mapped to [/]
2020-08-27 13:44:06.031  INFO 9188 --- [  restartedMain] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2020-08-27 13:44:06.031  INFO 9188 --- [  restartedMain] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2020-08-27 13:44:06.031  INFO 9188 --- [  restartedMain] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'formContentFilter' to: [/*]
2020-08-27 13:44:06.031  INFO 9188 --- [  restartedMain] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2020-08-27 13:44:06.203  INFO 9188 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Starting...
2020-08-27 13:44:06.332  INFO 9188 --- [  restartedMain] com.zaxxer.hikari.HikariDataSource       : HikariPool-1 - Start completed.
2020-08-27 13:44:06.388  INFO 9188 --- [  restartedMain] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [
    name: default
    ...]
2020-08-27 13:44:06.630  INFO 9188 --- [  restartedMain] org.hibernate.Version                    : HHH000412: Hibernate Core {5.3.7.Final}
2020-08-27 13:44:06.632  INFO 9188 --- [  restartedMain] org.hibernate.cfg.Environment            : HHH000206: hibernate.properties not found
2020-08-27 13:44:06.776  INFO 9188 --- [  restartedMain] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.0.4.Final}
2020-08-27 13:44:06.917  INFO 9188 --- [  restartedMain] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.hibernate.dialect.MySQL5InnoDBDialect
2020-08-27 13:44:07.829  INFO 9188 --- [  restartedMain] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2020-08-27 13:44:07.871  INFO 9188 --- [  restartedMain] o.s.b.d.a.OptionalLiveReloadServer       : LiveReload server is running on port 35729
2020-08-27 13:44:08.146  WARN 9188 --- [  restartedMain] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'courseController': Unsatisfied dependency expressed through field 'courseRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'courseRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract java.util.List net.springboot.javaguides.repository.CourseRepository.findByName(java.lang.String)! No property name found for type Course!

ANSWER

Answered 2020-Aug-27 at 13:08

Try adding @EnableJpaRepositories(packages) on top of your main class.

i had an same issue, i handled with adding @EntityScan or @EnableJpaRepositories(packages)

Source https://stackoverflow.com/questions/63616656

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install JavaGuide

You can download it from GitHub.
You can use JavaGuide like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the JavaGuide component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

Find more information at:

Reuse Trending Solutions

14 best Python Telegram Bot

21 best C# Game Development in 2023

Image Resizing using OpenCV in Python

How to Validate an Email Address in JavaScript

Age Calculator using JavaScript

28 best Python Face Recognition in 2023

Display Stopwatch in ReactJs

Google Maps Integration with Location

Disease Predictor

Resolving Gender Bias in AI

Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from
over 650 million Knowledge Items

Find more libraries

Reuse Solution Kits and Libraries Curated by Popular Use Cases

Save this library and start creating your kit

Clone

HTTPS

https://github.com/Snailclimb/JavaGuide.git

CLI

gh repo clone Snailclimb/JavaGuide

SSH

git@github.com:Snailclimb/JavaGuide.git

Download

https://github.com/Snailclimb/JavaGuide/archive/refs/heads/master.zip

Share this Page

See Similar Libraries in

Application Framework

Reuse Application Framework Kits

Spring Boot Application Deployment

See all related Kits

Reuse Server Kits

15 best Node.js Payment

Zero Hassle Pharma Management

41 best JavaScript Encryption libra

Waste Food Management

See all related Kits

Consider Popular Application Framework Libraries

by Snailclimb

by laravel

by spring-projects

by rails

CppCoreGuidelines

by isocpp

See all Application Framework Libraries

Try Top Libraries by Snailclimb

springboot-guide

by Snailclimb Java

guide-rpc-framework

by Snailclimb Java

JavaGuide-Interview

by Snailclimb JavaScript

spring-security-jwt-guide

by Snailclimb Java

by Snailclimb Java

See all Libraries by this author

Compare Application Framework Libraries with Highest Support

by spring-projects

by frappe

by rails

spring-boot-admin

by codecentric

by laravel

See all Application Framework Libraries

Compare Application Framework Libraries with Highest Quality

spring-petclinic

by spring-projects

spring-mybaits-template

by lidatui

by errai

by gregorriegler

sikuli-remote-control

by enix12enix

See all Application Framework Libraries

Compare Application Framework Libraries with Highest Security

spring-petclinic

by spring-projects

jersey-starterkit

by jasonray

spring-mybaits-template

by lidatui

by jglick

by errai

See all Application Framework Libraries

Compare Application Framework Libraries with Permissive License

appengine-sharded-counters-java

by GoogleCloudPlatform

by sciabarra

solutions-mobile-shopping-assistant-backend-java

by googlearchive

by errai

by IG-Group

See all Application Framework Libraries

Compare Application Framework Libraries with Highest Reuse

by yamcs

spring-embedded-tomcat

by alx3apps

picocli-spring-boot-starter

by kakawait

wavefront-spring-boot

by wavefrontHQ

by futoase

See all Application Framework Libraries

Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from
over 650 million Knowledge Items

Find more libraries

Reuse Solution Kits and Libraries Curated by Popular Use Cases

Save this library and start creating your kit

Open Weaver – Develop Applications Faster with Open Source

kandi

Develop Custom Functions

Develop Projects with Kits

Explore Popular Libraries

Product Tour

Community and Support

Self Paced Certifications

Hackathons and Events

FutureSkills Prime

Company

Follow

Terms
Privacy policy
© 2023 Open Weaver Inc.

© 2023 Open Weaver Inc.