kandi background

mybatis-plus | powerful enhanced toolkit of MyBatis for simplify development | Object-Relational Mapping library

by baomidou Java Version: v3.5.1 License: Non-SPDX

by baomidou Java Version: v3.5.1 License: Non-SPDX

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kandi X-RAY | mybatis-plus Summary

mybatis-plus is a Java library typically used in Utilities, Object-Relational Mapping applications. mybatis-plus has no vulnerabilities, it has build file available and it has medium support. However mybatis-plus has 9 bugs and it has a Non-SPDX License. You can download it from GitHub, Maven.

MyBatis-Plus is an powerful enhanced toolkit of MyBatis for simplify development. This toolkit provides some efficient, useful, out-of-the-box features for MyBatis, use it can effectively save your development time.

Support

Support

Quality

Quality

Security

Security

License

License

Reuse

Reuse

kandi-support Support

mybatis-plus has a medium active ecosystem.
It has 12765 star(s) with 3505 fork(s). There are 48 watchers for this library.
There were 1 major release(s) in the last 12 months.
There are 87 open issues and 3708 have been closed. On average issues are closed in 10 days. There are 11 open pull requests and 0 closed requests.
It has a neutral sentiment in the developer community.
The latest version of mybatis-plus is v3.5.1

mybatis-plus Support

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

mybatis-plus Support

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

quality kandi Quality

mybatis-plus has 9 bugs (0 blocker, 0 critical, 4 major, 5 minor) and 967 code smells.

mybatis-plus Quality

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

mybatis-plus Quality

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

security Security

mybatis-plus has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
mybatis-plus code analysis shows 0 unresolved vulnerabilities.
There are 11 security hotspots that need review.

mybatis-plus Security

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

mybatis-plus Security

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

license License

mybatis-plus has a Non-SPDX License.
Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

mybatis-plus License

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

mybatis-plus License

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

build Reuse

mybatis-plus releases are available to install and integrate.
Deployable package is available in Maven.
Build file is available. You can build the component from source.
Installation instructions, examples and code snippets are available.
mybatis-plus saves you 14776 person hours of effort in developing the same functionality from scratch.
It has 29534 lines of code, 2564 functions and 643 files.
It has medium code complexity. Code complexity directly impacts maintainability of the code.

mybatis-plus Reuse

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

mybatis-plus Reuse

Best in #Object-Relational Mapping

Average in #Object-Relational Mapping

Top functions reviewed by kandi - BETA

kandi has reviewed mybatis-plus and discovered the below as its top functions. This is intended to give you an instant insight into mybatis-plus implemented functionality, and help decide if they suit your requirements.

Build SQL session factory .
Auto count query string .
process joins
Parse prepared statement .
Returns dialect for given database type .
Init table fields .
parse sql info
Escape a raw escaped string .
Intercept the injection .
Doistic locking .

mybatis-plus Key Features

Fully compatible with MyBatis

Auto configuration on startup

Out-of-the-box interfaces for operate database

Powerful and flexible where condition wrapper

Multiple strategy to generate primary key

Lambda-style API

Almighty and highly customizable code generator

Automatic paging operation

SQL Inject defense

Support active record

Support pluggable custom interface

Build-in many useful extensions

mybatis-plus Examples and Code Snippets

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Getting started

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&lt;dependency&gt;
    &lt;groupId&gt;com.baomidou&lt;/groupId&gt;
    &lt;artifactId&gt;mybatis-plus-boot-starter&lt;/artifactId&gt;
    &lt;version&gt;Latest Version&lt;/version&gt;
&lt;/dependency&gt;

See all related Code Snippets

Community Discussions

Trending Discussions on mybatis-plus

error when launch the chaosblade-box in local
java.lang.StackOverflowError happens when connect to Neo4j, in Springboot Mybatis

Trending Discussions on mybatis-plus

QUESTION

error when launch the chaosblade-box in local

Asked 2021-Apr-22 at 14:18

something wrong when run the chaosblade-box web project with the command:

nohup java -Duser.timezone=Asia/Shanghai -jar chaosblade-box-web-0.3.2.jar --spring.datasource.url=jdbc:mysql://localhost:3306/chaosblade --spring.datasource.username=chaosblade--spring.datasource.password=xxxx> chaosblade-box.log 2>&1 &

note: mysql and the schema 'chaosblade' installed.

errormsg:

2021-04-15 20:59:29.358, [32mINFO [0;39m, [31m[main][0;39m [1;35mcom.alibaba.chaosblade.box.web.ChaosbladeBoxApplication[0;39m - Starting ChaosbladeBoxApplication v0.3.2 on CharliedeMacBook-Pro.local with PID 39353 (/Users/charlie/IdeaProjects/chaosblade-box/chaosblade-box-web/target/chaosblade-box-web-0.3.2.jar started by charlie in /Users/charlie/IdeaProjects/chaosblade-box/chaosblade-box-web/target)
2021-04-15 20:59:29.365, [32mINFO [0;39m, [31m[main][0;39m [1;35mcom.alibaba.chaosblade.box.web.ChaosbladeBoxApplication[0;39m - No active profile set, falling back to default profiles: default
2021-04-15 20:59:33.813, [32mWARN [0;39m, [31m[main][0;39m [1;35morg.mybatis.spring.mapper.ClassPathMapperScanner[0;39m - No MyBatis mapper was found in '[com.alibaba.chaosblade.box.web]' package. Please check your configuration.
2021-04-15 20:59:35.141, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration' of type [org.springframework.transaction.annotation.ProxyTransactionManagementConfiguration$$EnhancerBySpringCGLIB$$c3ac505f] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:35.739, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'mybatis-plus-com.baomidou.mybatisplus.autoconfigure.MybatisPlusProperties' of type [com.baomidou.mybatisplus.autoconfigure.MybatisPlusProperties] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:35.768, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'mybatisPlusConfig' of type [com.alibaba.chaosblade.box.web.config.MybatisPlusConfig$$EnhancerBySpringCGLIB$$2d26293b] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
...

                       3.3.2 
2021-04-15 20:59:42.689, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'sqlSessionFactory' of type [org.apache.ibatis.session.defaults.DefaultSqlSessionFactory] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:42.736, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'sqlSessionTemplate' of type [org.mybatis.spring.SqlSessionTemplate] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.214, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceMapper' of type [org.mybatis.spring.mapper.MapperFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.227, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceMapper' of type [jdk.proxy2.$Proxy67] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.261, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceRepository' of type [com.alibaba.chaosblade.box.dao.repository.DeviceRepository] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.487, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceNodeMapper' of type [org.mybatis.spring.mapper.MapperFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.492, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceNodeMapper' of type [jdk.proxy2.$Proxy70] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.495, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'deviceNodeRepository' of type [com.alibaba.chaosblade.box.dao.repository.DeviceNodeRepository] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.663, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'devicePodMapper' of type [org.mybatis.spring.mapper.MapperFactoryBean] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.667, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'devicePodMapper' of type [jdk.proxy2.$Proxy72] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:43.672, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.c.support.PostProcessorRegistrationDelegate$BeanPostProcessorChecker[0;39m - Bean 'devicePodRepository' of type [com.alibaba.chaosblade.box.dao.repository.DevicePodRepository] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2021-04-15 20:59:44.665, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.springframework.boot.web.embedded.tomcat.TomcatWebServer[0;39m - Tomcat initialized with port(s): 8080 (http)
2021-04-15 20:59:44.720, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.apache.coyote.http11.Http11NioProtocol[0;39m - Initializing ProtocolHandler ["http-nio-8080"]
2021-04-15 20:59:44.750, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.apache.catalina.core.StandardService[0;39m - Starting service [Tomcat]
2021-04-15 20:59:44.751, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.apache.catalina.core.StandardEngine[0;39m - Starting Servlet engine: [Apache Tomcat/9.0.21]
2021-04-15 20:59:45.033, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.apache.catalina.core.ContainerBase.[Tomcat].[localhost].[/][0;39m - Initializing Spring embedded WebApplicationContext
2021-04-15 20:59:45.033, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.springframework.web.context.ContextLoader[0;39m - Root WebApplicationContext: initialization completed in 15465 ms
2021-04-15 20:59:48.592, [32mWARN [0;39m, [31m[main][0;39m [1;35mo.s.b.w.s.context.AnnotationConfigServletWebServerApplicationContext[0;39m - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'experimentController': Unsatisfied dependency expressed through field 'experimentService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'experimentServiceImpl': Unsatisfied dependency expressed through field 'sceneService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sceneCategoryLoader' defined in URL [jar:file:/Users/charlie/IdeaProjects/chaosblade-box/chaosblade-box-web/target/chaosblade-box-web-0.3.2.jar!/BOOT-INF/lib/chaosblade-box-scenario-api-0.3.2.jar!/com/alibaba/chaosblade/box/scenario/api/init/SceneCategoryLoader.class]: Invocation of init method failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error evaluating expression 'ew.sqlSegment != null and ew.sqlSegment != '' and ew.nonEmptyOfWhere'. Cause: org.apache.ibatis.ognl.OgnlException: sqlSegment [java.lang.NullPointerException: Cannot invoke "Object.hashCode()" because "key" is null]
2021-04-15 20:59:48.600, [32mINFO [0;39m, [31m[main][0;39m [1;35mcom.zaxxer.hikari.HikariDataSource[0;39m - DatebookHikariCP - Shutdown initiated...
2021-04-15 20:59:48.624, [32mINFO [0;39m, [31m[main][0;39m [1;35mcom.zaxxer.hikari.HikariDataSource[0;39m - DatebookHikariCP - Shutdown completed.
2021-04-15 20:59:48.642, [32mINFO [0;39m, [31m[main][0;39m [1;35morg.apache.catalina.core.StandardService[0;39m - Stopping service [Tomcat]
2021-04-15 20:59:48.682, [32mINFO [0;39m, [31m[main][0;39m [1;35mo.s.boot.autoconfigure.logging.ConditionEvaluationReportLoggingListener[0;39m - 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-04-15 20:59:48.694, [32mERROR[0;39m, [31m[main][0;39m [1;35morg.springframework.boot.SpringApplication[0;39m - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'experimentController': Unsatisfied dependency expressed through field 'experimentService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'experimentServiceImpl': Unsatisfied dependency expressed through field 'sceneService'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sceneCategoryLoader' defined in URL [jar:file:/Users/charlie/IdeaProjects/chaosblade-box/chaosblade-box-web/target/chaosblade-box-web-0.3.2.jar!/BOOT-INF/lib/chaosblade-box-scenario-api-0.3.2.jar!/com/alibaba/chaosblade/box/scenario/api/init/SceneCategoryLoader.class]: Invocation of init method failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.builder.BuilderException: Error evaluating expression 'ew.sqlSegment != null and ew.sqlSegment != '' and ew.nonEmptyOfWhere'. Cause: org.apache.ibatis.ognl.OgnlException: sqlSegment [java.lang.NullPointerException: Cannot invoke "Object.hashCode()" because "key" is null]
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1411)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:845)
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:877)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549)
    at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742)

ANSWER

Answered 2021-Apr-19 at 03:18

It may be caused by mybatis-plus, refer to this： https://github.com/zhangdaiscott/jeecg-boot/issues/1886

Source https://stackoverflow.com/questions/67155367

QUESTION

java.lang.StackOverflowError happens when connect to Neo4j, in Springboot Mybatis

Asked 2020-Dec-31 at 15:28

As the title suggests, I met the StackOverFlow problem when I connect to Neo4j in Springboot with Mybatis. The CQL runs well in Neo4j desktop, but the api returns a 500 result with the same CQL in mapper.

The error message goes like:

2020-12-31 20:22:24.560 ERROR 31232 --- [nio-9090-exec-1] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Handler dispatch failed; nested exception is java.lang.StackOverflowError] with root cause

java.lang.StackOverflowError: null
    at java.io.WinNTFileSystem.normalizePrefix(WinNTFileSystem.java:186) ~[na:1.8.0_261]
    at java.io.WinNTFileSystem.normalize(WinNTFileSystem.java:111) ~[na:1.8.0_261]
    at java.io.WinNTFileSystem.normalize(WinNTFileSystem.java:93) ~[na:1.8.0_261]
    at java.io.File.<init>(File.java:279) ~[na:1.8.0_261]
    at java.io.FilePermission$1.run(FilePermission.java:224) ~[na:1.8.0_261]
    at java.io.FilePermission$1.run(FilePermission.java:212) ~[na:1.8.0_261]
    at java.security.AccessController.doPrivileged(Native Method) ~[na:1.8.0_261]
    at java.io.FilePermission.init(FilePermission.java:212) ~[na:1.8.0_261]
    at java.io.FilePermission.<init>(FilePermission.java:299) ~[na:1.8.0_261]
    at sun.net.www.protocol.file.FileURLConnection.getPermission(FileURLConnection.java:228) ~[na:1.8.0_261]
    at sun.net.www.protocol.jar.JarFileFactory.getPermission(JarFileFactory.java:166) ~[na:1.8.0_261]
    at sun.net.www.protocol.jar.JarFileFactory.getCachedJarFile(JarFileFactory.java:136) ~[na:1.8.0_261]
    at sun.net.www.protocol.jar.JarFileFactory.get(JarFileFactory.java:91) ~[na:1.8.0_261]
    at sun.net.www.protocol.jar.JarURLConnection.connect(JarURLConnection.java:122) ~[na:1.8.0_261]
    at sun.net.www.protocol.jar.JarURLConnection.getInputStream(JarURLConnection.java:152) ~[na:1.8.0_261]
    at java.net.URLClassLoader.getResourceAsStream(URLClassLoader.java:239) ~[na:1.8.0_261]
    at java.lang.Class.getResourceAsStream(Class.java:2223) ~[na:1.8.0_261]
    at org.neo4j.jdbc.DatabaseMetaData.<init>(DatabaseMetaData.java:100) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpDatabaseMetaData.<init>(HttpDatabaseMetaData.java:34) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpDatabaseMetaData.<init>(HttpDatabaseMetaData.java:43) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpConnection.getMetaData(HttpConnection.java:105) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpConnection.getMetaData(HttpConnection.java:40) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at com.zaxxer.hikari.pool.ProxyConnection.getMetaData(ProxyConnection.java:380) ~[HikariCP-3.4.5.jar:na]
    at com.zaxxer.hikari.pool.HikariProxyConnection.getMetaData(HikariProxyConnection.java) ~[HikariCP-3.4.5.jar:na]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNextResultSet(DefaultResultSetHandler.java:256) ~[mybatis-3.5.2.jar:3.5.2]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNextResultSet(DefaultResultSetHandler.java:261) ~[mybatis-3.5.2.jar:3.5.2]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNextResultSet(DefaultResultSetHandler.java:261) ~[mybatis-3.5.2.jar:3.5.2]
    at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getNextResultSet(DefaultResultSetHandler.java:261) ~[mybatis-3.5.2.jar:3.5.2]

(The last line was repeated hundreds of times)

Here are my configurations and code:

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>2.3.4.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.neo4j.dw</groupId>
    <artifactId>dw</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>amazonMovies</name>
    <description>Amazon Movies Data Warehouse</description>

    <!--    <properties>-->
    <!--        <java.version>1.8</java.version>-->
    <!--    </properties>-->

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-neo4j</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
<!--        Neo4j-->
        <dependency>
            <groupId>org.neo4j</groupId>
            <artifactId>neo4j-jdbc-driver</artifactId>
            <version>3.1.0</version>
        </dependency>
        <!-- mybatis-->
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.5.2</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
        </dependency>
        <!-- solve: java.lang.NumberFormatException: For input string: "" -->
        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-bean-validators</artifactId>
            <version>2.9.2</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <!-- mp -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.4.0</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>2.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.4.0</version>
            <exclusions>
                <exclusion>
                    <artifactId>mybatis</artifactId>
                    <groupId>org.mybatis</groupId>
                </exclusion>
            </exclusions>
        </dependency>

        <dependency>
            <groupId>com.auth0</groupId>
            <artifactId>java-jwt</artifactId>
            <version>3.9.0</version>
        </dependency>
        <!-- fastjson -->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>fastjson</artifactId>
            <version>1.2.47</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20190722</version>
        </dependency>

        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
        </dependency>

        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk16</artifactId>
            <version>1.46</version>
        </dependency>

        <!--分页插件 -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus</artifactId>
            <version>3.4.0</version>
        </dependency>
    </dependencies>


    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <mainClass>com.neo4j.dw.DwApplication</mainClass>
                    <excludes>
                        <exclude>
                            <groupId>org.springframework.boot</groupId>
                            <artifactId>spring-boot-configuration-processor</artifactId>
                        </exclude>
                    </excludes>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <fork>true</fork>
                </configuration>
            </plugin>
        </plugins>

    </build>

</project>

mybatis_config.xml

<?xml version="1.0" encoding="UTF8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <environments default="development">
        <environment id="development">
            <transactionManager type="JDBC"/>
            <dataSource type="POOLED">
                <property name="driver" value="org.neo4j.jdbc.http.HttpDriver"/>
                <property name="url" value="jdbc:neo4j:http://localhost:7474"/>
                <property name="username" value="neo4j"/>
                <property name="password" value="ETL2020"/>
            </dataSource>
        </environment>
    </environments>
    <mappers>
        <mapper resource="./mapper/*.xml"/>
    </mappers>
</configuration>

application.yml

spring:
  datasource:
    driver-class-name: org.neo4j.jdbc.http.HttpDriver
    url: jdbc:neo4j:http://localhost:7474
    username: neo4j
    password: ETL2020

mybatis-plus:
  mapper-locations: classpath*:/mapper/**Mapper.xml
  type-aliases-package: com.neo4j.dw.Model

server:
  port: 9090

TestController

package com.neo4j.dw.Controller;

import com.neo4j.dw.Model.User;
import com.neo4j.dw.Service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestHeader;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.ArrayList;

@RestController
@RequestMapping("/test")
public class TestController {
    @Autowired
    private TestService testService;

    @GetMapping("/hello")
    public String hello(){
        return "hello";
    }

    @GetMapping("/user")
    public ArrayList<User> getUsers() {
        return testService.selectUsers();
    }
}

TestServiceImpl

package com.neo4j.dw.Service.Impl;

import com.neo4j.dw.Mapper.TestMapper;
import com.neo4j.dw.Model.User;
import com.neo4j.dw.Service.TestService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.ArrayList;

@Service
public class TestServiceImpl implements TestService {
    @Autowired
    private TestMapper testMapper;

    @Override
    public ArrayList<User> selectUsers(){
        return testMapper.selectUsers();
    }
}

TestMapper

package com.neo4j.dw.Mapper;

import com.neo4j.dw.Model.User;
import org.apache.ibatis.annotations.Mapper;

import java.util.ArrayList;

@Mapper
public interface TestMapper {

    ArrayList<User> selectUsers();
}

User

package com.neo4j.dw.Model;

import lombok.*;
import com.baomidou.mybatisplus.annotation.TableField;

@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
@Getter
@Setter
public class User {
    @TableField("userId")
    public String userId;

    @TableField("profileName")
    public String profileName;
}

TestMapper.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.neo4j.dw.Mapper.TestMapper">
    <select id="selectUsers" resultType="int">
        MATCH (n1)-[r]->(n2) RETURN count(*)
    </select>
</mapper>

I'm new in Neo4j and Mybatis. Can anyone help me figure out how to fix this error? Thanks a million!

ANSWER

Answered 2020-Dec-31 at 15:28

As far as I know, there is no MyBatis integration in:

neither Spring Data Neo4j 5 (added via spring-boot-starter-data-neo4j in your POM, included up until Spring Boot 2.3)
nor Neo4j OGM (which is the library Spring Data Neo4j 5 is built upon).

If you want to get started, you should probably get started with Spring Data Neo4j 6 (aka SDN 6), i.e. the latest version of Spring Data Neo4j at the time of writing. If you upgrade Spring Boot to the latest version (2.4 at the time of writing), you will automatically get it.

You should probably start with the reference documentation of SDN 6. You also can find an example here.

As you will learn, you can get rid of MyBatis, SDN 6 (and 5 via Neo4j OGM) takes care of the mapping already.

Source https://stackoverflow.com/questions/65521129

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

Vulnerabilities

No vulnerabilities reported

Install mybatis-plus

Modify mapper file extends BaseMapper interface. MyBatis-Plus will execute the following SQL. This showcase is just a small part of MyBatis-Plus features. If you want to learn more, please refer to the documentation.
Add MyBatis-Plus dependency Latest Version: Maven: <dependency> <groupId>com.baomidou</groupId> <artifactId>mybatis-plus-boot-starter</artifactId> <version>Latest Version</version> </dependency> Gradle compile group: 'com.baomidou', name: 'mybatis-plus-boot-starter', version: 'Latest Version'
Modify mapper file extends BaseMapper interface public interface UserMapper extends BaseMapper<User> { }
Use it List<User> userList = userMapper.selectList( new QueryWrapper<User>() .lambda() .ge(User::getAge, 18) ); MyBatis-Plus will execute the following SQL SELECT * FROM user WHERE age >= 18

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