fastjson | FASTJSON 2.0.x has been released faster and more secure | JSON Processing library

by alibaba Java Version: 1.2.80-fix License: Apache-2.0

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | fastjson Summary

fastjson is a Java library typically used in Utilities, JSON Processing applications. fastjson has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can download it from GitHub, Maven.

FASTJSON 2.0.x has been released, faster and more secure, recommend you upgrade.

Support

Quality

Security

License

Reuse

Support

Quality

Security

License

Reuse

Support

fastjson has a highly active ecosystem.

It has 25227 star(s) with 6515 fork(s). There are 1321 watchers for this library.

There were 1 major release(s) in the last 12 months.

There are 1821 open issues and 1662 have been closed. On average issues are closed in 328 days. There are 166 open pull requests and 0 closed requests.

It has a positive sentiment in the developer community.

The latest version of fastjson is 1.2.80-fix

fastjson Support

Best in #JSON Processing

Average in #JSON Processing

fastjson Support

Best in #JSON Processing

Average in #JSON Processing

Quality

fastjson has 0 bugs and 0 code smells.

fastjson Quality

Best in #JSON Processing

Average in #JSON Processing

fastjson Quality

Best in #JSON Processing

Average in #JSON Processing

Security

fastjson has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

fastjson code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

fastjson Security

Best in #JSON Processing

Average in #JSON Processing

fastjson Security

Best in #JSON Processing

Average in #JSON Processing

License

fastjson is licensed under the Apache-2.0 License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

fastjson License

Best in #JSON Processing

Average in #JSON Processing

fastjson License

Best in #JSON Processing

Average in #JSON Processing

Reuse

fastjson 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 are not available. Examples and code snippets are available.

fastjson saves you 177099 person hours of effort in developing the same functionality from scratch.

It has 181091 lines of code, 19450 functions and 3015 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

fastjson Reuse

Best in #JSON Processing

Average in #JSON Processing

fastjson Reuse

Best in #JSON Processing

Average in #JSON Processing

Top functions reviewed by kandi - BETA

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

Build JavaBeanInfo from given class .

Deserialize field information .

Scan a date in ISO8601 format .

Gets an object writer .

Write a string with double quotes .

Generate write as array .

tokenize object

Scan a field name .

Get the value of a property

Writes the value of the property .

Get all kandi verified functions for this library.

fastjson Key Features

[Documentation Home](https://github.com/alibaba/fastjson/wiki)

[Contributing Code](https://github.com/nschaffner/fastjson/blob/master/CONTRIBUTING.md)

[Frequently Asked Questions](https://github.com/alibaba/fastjson/wiki/%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98)

[maven][1]

[the latest JAR][2]

fastjson Examples and Code Snippets

No Code Snippets are available at this moment for fastjson.

Community Discussions

Trending Discussions on fastjson

SpringBoot: Validation without @Valid annotation

How to use lambda expression in android?

how to generate signed apk in android studio

How to don't serialize the class field in FastJson?

@JSONField it did not work in spring boot

Error when starting spring-boot app. How to find out which dependency is causing AbstractMethodError

Can't understand/find error in JSON config file referenced by Unity logs

Rails - How to add pagination to Fastjson api?

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

Error creating bean with name 'projectController': Unsatisfied dependency expressed through field 'service';

Trending Discussions on fastjson

SpringBoot: Validation without @Valid annotation

How to use lambda expression in android?

how to generate signed apk in android studio

How to don't serialize the class field in FastJson?

@JSONField it did not work in spring boot

Error when starting spring-boot app. How to find out which dependency is causing AbstractMethodError

Can't understand/find error in JSON config file referenced by Unity logs

Rails - How to add pagination to Fastjson api?

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

Error creating bean with name 'projectController': Unsatisfied dependency expressed through field 'service';

QUESTION

SpringBoot: Validation without @Valid annotation

Asked 2021-Nov-23 at 04:53

I have a web socket handler inherited from AbstractWebSocketHandler that handles text messages. My DTOs use javax.validation.constraints for validation. So, in my REST endpoints, I simply can use the @Valid annotation to invoke the validator. However, as far as I know, this annotation is not usable in my web socket handler. How can I invoke the SpringBoot validator programmatically without this annotation?

Besides, is it possible to use the SpringBoot de-serializer for messages instead of JSON.parseObject?

Example:

import javax.validation.constraints.NotBlank;
import lombok.Data;

@Data
class CustomMessage {
    @NotBlank
    private String text;
}

import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import lombok.NonNull;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.handler.AbstractWebSocketHandler;

@Component
@Slf4j
public class MyCustomWebSocketHandler extends AbstractWebSocketHandler {
    @Override
    protected void handleTextMessage(@NonNull WebSocketSession session, @NonNull TextMessage message) {
        CustomMessage customMessage = JSON.parseObject(message.getPayload(), CustomMessage.class);
        // Validate the message according to javax.validation annotations and throw MethodArgumentNotValidException if invalid
        log.debug("Received valid message {}", customMessage)
    }
}

ANSWER

Answered 2021-Nov-23 at 04:53

You will use a Validator to fill a list of ConstraintViolation. An example could looks like this :

public abstract class GenericService {

    protected Validator validator;

    protected void validateDomainRecord(T object, String message) {
        Set> violations = validator.validate(object);
        if(!violations.isEmpty()) {
            throw new ConstraintViolationException(message, violations);
        }
    }
}

In your case, your code will looks something like this :

import com.alibaba.fastjson.JSON;
import lombok.extern.slf4j.Slf4j;
import lombok.NonNull;
import org.springframework.stereotype.Component;
import org.springframework.web.socket.handler.AbstractWebSocketHandler;

@Component
@Slf4j
public class MyCustomWebSocketHandler extends AbstractWebSocketHandler {

    private Validator validator;
    
    @Override
    protected void handleTextMessage(@NonNull WebSocketSession session, @NonNull TextMessage message) {
        CustomMessage customMessage = JSON.parseObject(message.getPayload(), CustomMessage.class);
        // Validate the message according to javax.validation annotations and throw MethodArgumentNotValidException if invalid
        ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
        validator = factory.getValidator();            
        Set> violations = validator.validate(customMessage);
        if(!violations.isEmpty()) {
            throw new ConstraintViolationException(message, violations);
        }

        log.debug("Received valid message {}", customMessage)
    }
}

Take look a this good tutorial for more details. I guess it is also possible to customize your validation and your exception too.

Source https://stackoverflow.com/questions/70029336

QUESTION

How to use lambda expression in android?

Asked 2021-Nov-02 at 06:49

I have tried everything I could find from StackOverflow to make this problem right but none of them succeeded.

The strange thing is : I can use lambda such as

 activity.runOnUiThread(() -> {
                    activity.startActivity(intent);
                });

and stream like this

activity.getPackageManager().getInstalledPackages(0).stream().collect(Collectors.toList())

but this will fail :

activity.getPackageManager()
.getInstalledPackages(0)
.stream()
.filter(e -> e.packageName.contains("com"))
.collect(Collectors.toList())

my build.gradle file:

plugins {
    id 'com.android.application'
}

android {
    compileSdk 31

    defaultConfig {
        applicationId "com.mylearn.simplesender"
        minSdk 25
        targetSdk 31
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }

    buildFeatures {
        viewBinding true
    }


    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'com.google.android.material:material:1.3.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.9.2'
    implementation group: 'com.alibaba', name: 'fastjson', version: '1.2.78'
    implementation group: 'com.google.guava', name: 'guava', version: '31.0.1-android'
    implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'
    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
}

and also, here is my Gradle setting in Android Studio

here is my compile setting in Android Studio

It shows an unreadable error, and when I debug this expression in the watcher shows :

Compilation failed:
-source 1.6 中不支持 lambda 表达式
  (请使用 -source 8 或更高版本以启用 lambda 表达式)

which means I'm using source version 1.6, and it does not support lambda expression and told me to use source 8 or higher to enable lambda expression.

But I'm already in java 11, how could this happen?

ANSWER

Answered 2021-Nov-02 at 05:21

go to App level build.gradle>

then put this code in android {} block

compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

after this your code look like this

android {
compileSdkVersion 31
buildToolsVersion "30.0.2"

defaultConfig {
    applicationId "in.chikuai.example"
    minSdkVersion 19
    targetSdkVersion 31
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}

buildTypes {
    release {
        minifyEnabled false
        proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}

}

Source https://stackoverflow.com/questions/69805214

QUESTION

how to generate signed apk in android studio

Asked 2021-Oct-28 at 02:25

In my case, I have my signature key and I have generated the apk with function menubuild--->generate signed Bundle/Apk

Here are the steps how I generate this apk:

step 1:

step 2:

finally:

When I put this generated release apk into my real device, it will work well.

But when I tried to send this apk to my application center, it said that I don't have any signature file in this apk.

According to many issues found on google, I have noticed that there was actually no signature file in my apk at all. It seems that Android studio's build--->generate signed Bundle/Apk didn't work at all, there was only a release with no signature that generated.

I'm quite new in android developing. I wonder if there are some mistakes in my gradle settings.

My application has 2 gradle.build file like this picture:

the gradle.build out side the app directory is :

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    
    repositories {
        google()
        jcenter()
        
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:7.0.3'
        

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

and the gradle.build file inside app directory is:

apply plugin: 'com.android.application'

android {
    signingConfigs {
        debug {
            storeFile file('D:\\CodeRepository\\app-key-store\\SimpleSender.jks')
            storePassword '123123123'
            keyAlias 'simple-sender-key'
            keyPassword '123123123'
        }
    }
    compileSdkVersion 30
    buildToolsVersion "30.0.0"

    defaultConfig {
        applicationId "com.example.simplesender"
        minSdkVersion 25
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }
    buildFeatures {
        viewBinding true
    }

}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'com.google.android.material:material:1.3.0'
    implementation 'androidx.annotation:annotation:1.2.0'
    implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.3.1'
    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.3.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
    implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.9.2'
    implementation group: 'com.alibaba', name: 'fastjson', version: '1.2.78'
    implementation group: 'com.google.guava', name: 'guava', version: '31.0.1-android'
    implementation group: 'org.apache.commons', name: 'commons-lang3', version: '3.12.0'

}

I don't know why I can't generate an apk with signature...

ANSWER

Answered 2021-Oct-28 at 02:25

Thanks for @Raj Suvariya and @Nitish

The problem was solved according to their kindness instructions. And how I solved this problem is showing below:

First of all I'm using AS of version

Android Studio Arctic Fox | 2020.3.1 Patch 3

If you are using the same AS, you won't find any options to select signing version when you trying to generate a signed apk with your signing key like this picture showing below (they all have these 2 options).

after finishing building, the APK can be run in my device an works just all right, but I cannot deploy it to app store because app store told me that I have no signature file in META-INF.

The solution is to Explicitly specify the signing strategy like this in build.gradle and here is the code. the important code is

            v1SigningEnabled true
            v2SigningEnabled true

here is my build.gradle file

apply plugin: 'com.android.application'

android {
    signingConfigs {
        debug {
            storeFile file('D:\\CodeRepository\\app-key-store\\SimpleSender.jks')
            storePassword 'xxx'
            keyAlias 'simple-sender-key'
            keyPassword 'xxx'
            v1SigningEnabled true
            v2SigningEnabled true
        }
        release {
            storeFile file('D:\\CodeRepository\\app-key-store\\SimpleSender.jks')
            storePassword 'xxx'
            keyAlias 'simple-sender-key'
            keyPassword 'xxx'
            v1SigningEnabled true
            v2SigningEnabled true
        }
    }

.....your other configs.....

}

Try run generate signed apk again, and problem solved, and deployment to app store succeed.

Source https://stackoverflow.com/questions/69738029

QUESTION

How to don't serialize the class field in FastJson?

Asked 2021-Jun-10 at 03:04

Today I'm using FastJson(https://github.com/alibaba/fastjson), the following is my demo code.

class User {
  private final String name;
  private final int age;
  private final String birthday;
  private String password;

  public User(String name, int age, String birthday) {
    this.name = name;
    this.age = age;
    this.birthday = birthday;
  }

  public void setPassword(String pwd) {
    this.password = pwd;
  }

  public String getName() {
    return name;
  }

  public int getAge() {
    return age;
  }

  public String getBirthday() {
    return birthday;
  }

  public String getPassword() {
    return password;
  }

  @Override
  public String toString() {
    return "User{" +
            "name='" + name + '\'' +
            ", age=" + age +
            ", birthday='" + birthday + '\'' +
            ", password='" + password + '\'' +
            '}';
  }
}

It will serialize the field which has getXXX method. I do not want to serialize the password, and I will call the getPassword() to get the password value.

I do not want to rename the method getPassword and update the variable password to public.

Does anyone know how to ignore a field when serializing this class?

ANSWER

Answered 2021-Jun-10 at 03:04

@JSONField(serialze=false)
public String getPassword() {
  return password;
}

Source https://stackoverflow.com/questions/67835239

QUESTION

@JSONField it did not work in spring boot

Asked 2021-May-24 at 06:06

I use @JSONField annotation for pointX and pointY, I want to change pointX to point_x! I want to pointX show like point_x! But it did not work! It always is pointX and pointY! but other field is ok!

My java bean like this!

@Data
public class PointListOutput {
  
    @JSONField(name = "latest_area_point_list")
    private List latestAreaPointList;

    @Data
    public static class Point {
        @JSONField(name = "point_x")
        private Float pointX;
        @JSONField(name = "point_y")
        private Float pointY;
    }
}

my config

@Override
protected void configureMessageConverters(final List> converters) {
    super.configureMessageConverters(converters);

    // create FastJson converter
    final FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();

    final List supportedMediaTypes = new ArrayList<>();
    supportedMediaTypes.add(MediaType.APPLICATION_JSON);
    supportedMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
    converter.setSupportedMediaTypes(supportedMediaTypes);

    // create configuration class
    final FastJsonConfig config = new FastJsonConfig();
    // update filter of response
    config.setSerializerFeatures(SerializerFeature.PrettyFormat, SerializerFeature.WriteMapNullValue);
    converter.setFastJsonConfig(config);

    converters.add(new ByteArrayHttpMessageConverter());
    converters.add(converter);
}

Here is my http response, as you can see the pointX is pointX! not point_x!

{
    "code": 1,
    "message": "Success",
    "data": [
        {
            "latest_area_point_list": [
                {
                    "pointX": 1.1,
                    "pointY": 1.1
                },
                {
                    "pointX": null,
                    "pointY": 1.1
                }
            ]
        }
    ]
}

ANSWER

Answered 2021-May-24 at 06:06

I resolved this, it cause by org.springframework.beans.BeanUtils.copyProperties
I used org.springframework.beans.BeanUtils.copyProperties change DAO java bean to View java bean.
My Dao java bean

@Data
@DynamoDBTable(tableName = "xxxx")
public class PointPojo {
    @DynamoDBAttribute(attributeName = "latest_area_point_list")
    private List latestAreaPointList;

    @Data
    @DynamoDBDocument
    public static class Point {
        @DynamoDBAttribute(attributeName = "point_x")
        private Float pointX;
        @DynamoDBAttribute(attributeName = "point_y")
        private Float pointY;
    }
}

And PointPojo did no hava @JSONField(name = "point_x")
after copyProperties the Point was not PointListOutput$Point, it was PointPojo@Point, and it did not hava @JSONField(name = "point_x")
So this is the root cause!

I use orika replace org.springframework.beans.BeanUtils.copyProperties, it was perfect！

Source https://stackoverflow.com/questions/67635422

QUESTION

Error when starting spring-boot app. How to find out which dependency is causing AbstractMethodError

Asked 2021-Apr-27 at 06:37

I'm having an error as the below when I'm starting my program.

AbstractMethodError org.springframework.boot.context.config.ConfigFileApplicationListener.supportsSourceType

This is after I have added the below to my pom file:


    org.springframework.boot
    spring-boot-maven-plugin
    
    false
    ZIP

The reason which I added this is for the purpose to externalize some of the libraries to directly reference to it from runtime classpath:

nohup java -cp MyProject.jar -Dloader.path=/path/lib/ org.springframework.boot.loader.PropertiesLauncher &

Full pom file:


    4.0.0
    
        parent proj
        project
        R2-1.0.0-SNAPSHOT
    
    project
    jar

    
        3.7.0
        1.7.9
        1.8
    

    

        
            project
            project
            R2-1.0.0-SNAPSHOT
        

        
        
            com.h2database
            h2
            runtime
        

        
        
            org.springframework.boot
            spring-boot-starter-test
            
                
                    ch.qos.logback
                    logback-classic
                
            
            ${springboot.version}
            test
        

        
        
            org.apache.commons
            commons-io
            1.3.2
        

        

        
            org.apache.axis2
            axis2-transport-local
            ${axis2.version}
            compile
        
        
            org.apache.axis2
            axis2-transport-http
            ${axis2.version}
            compile
        
        
            org.apache.axis2
            axis2-xmlbeans
            ${axis2.version}
            compile
        
        
            org.apache.axis2
            axis2-jaxws
            
                
                    jaxb-impl
                    com.sun.xml.bind
                
                
                    javax.xml.bind
                    jaxb-api
                
            
            1.7.9
            compile
        
        
            org.apache.ws.commons.axiom
            axiom-api
            1.2.21
            compile
        
        
            org.apache.ws.commons.axiom
            axiom-impl
            1.2.21
            compile
        
    

    
        MyProject
        


            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    false
                    ZIP

Parent Pom:

4.0.0


    org.springframework.boot
    spring-boot-starter-parent
    2.1.8.RELEASE
     

parent proj
project
R2-1.0.0-SNAPSHOT
pom


    project1
    project2
    project3


proj
proj


    R2-1.0.0-SNAPSHOT
    2.1.8.RELEASE
    UTF-8
    UTF-8
    1.8
    3.0.0-RC1
    
    1.7.26
    2.8.10
    9.8.0-8
    1.7.9
    ${java.version}
    ${java.version}



    
        
            org.springframework.boot
            spring-boot-dependencies
            ${springboot.version}
            pom
            import
        
        
            org.apache.camel
            camel-spring-boot-dependencies
            ${camel.version}
            pom
            import
        
    



    
        org.springframework.boot
        spring-boot-starter-activemq
        
            
                org.apache.activemq
                activemq-broker
            
        
    
    
        org.apache.camel
        camel-spring-boot-starter
    
    
        org.apache.camel
        camel-activemq
        
            
                org.apache.activemq
                activemq-broker
            
        
    
    
        org.springframework.boot
        spring-boot-configuration-processor
        true
    
    
        org.springframework.boot
        spring-boot-starter-actuator
    
    
        org.apache.activemq
        activemq-broker
    
    
        org.apache.activemq
        activemq-pool
    


    
    
        org.apache.logging.log4j
        log4j-api
        test
    
    
        org.apache.logging.log4j
        log4j-core
        test
    
    
        org.apache.logging.log4j
        log4j-slf4j-impl
        test
    
    
        org.apache.logging.log4j
        log4j-1.2-api
        test
    

    
    
        org.springframework.boot
        spring-boot-starter-test
        
            
                ch.qos.logback
                logback-classic
            
        
        test
    
    
        org.apache.camel
        camel-test-spring
        test
    
    
        org.springframework.boot
        spring-boot-starter-jdbc
    
    
        com.oracle.jdbc
        ojdbc7
        12.1.0.2
    
    
        com.alibaba
        fastjson
        1.2.60
    
    
        org.infinispan
        infinispan-remote
        9.1.7.Final
    


    
        io.spring.platform
        platform-bom
        Brussels-SR4
        pom
        import

Screenshot of my error on runtime

Please help! Thanks

Spring boot version 2.1.8.RELEASE for all

Camel Spring Boot Context 5.1.9 RELEASE

I have found out ConfigurableApplicationContext is referencing spring-context-5.1.9.RELEASE

ANSWER

Answered 2021-Mar-25 at 06:00

seems it's related to your config file

use -X flag with your maven command to see the full stack trace

mvn -X spring-boot:run

Source https://stackoverflow.com/questions/66792625

QUESTION

Can't understand/find error in JSON config file referenced by Unity logs

Asked 2021-Apr-05 at 14:19

I have customized this JSON config file for a mod from the game Valheim. The mods make use of a Unity program in order to load the mods up and it shows a console log so you can find errors while loading the game with said mods. I am getting this constant error in the Unity console regarding the file, but cannot understand the error or find any errors in the files JSON formatting.

The error is as follows

[Info   :   BepInEx] Loading [Epic Loot 0.6.4]
[Error  : Unity Log] Exception: Unrecognized token at index 14451
Stack trace:
fastJSON.JsonParser.ParseValue (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseArray (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseValue (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseObject (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseValue (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseArray (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseValue (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseObject (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.ParseValue (System.Char* p) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JsonParser.Decode (System.Type objtype) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.deserializer.ToObject (System.String json, System.Type type) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.deserializer.ToObject[T] (System.String json) (at <375de602811e45c183084f18a311bd14>:0)
fastJSON.JSON.ToObject[T] (System.String json) (at <375de602811e45c183084f18a311bd14>:0)
EpicLoot.EpicLoot.LoadJsonFile[T] (System.String filename) (at <626516c9d3e244fa8f8ddd6519f94bb9>:0)
EpicLoot.EpicLoot.InitializeConfig () (at <626516c9d3e244fa8f8ddd6519f94bb9>:0)
EpicLoot.EpicLoot.Awake () (at <626516c9d3e244fa8f8ddd6519f94bb9>:0)
UnityEngine.GameObject:AddComponent(Type)
BepInEx.Bootstrap.Chainloader:Start()
UnityEngine.Application:.cctor()"

And here is the file

https://pastebin.com/RugHLkm0

Thank you in advance for any help.

ANSWER

Answered 2021-Apr-05 at 14:19

What the error message is saying is that 14451th character is wrong (from the json parser's point of view).

This character index is not very helpful to me. So, to explore this further, I've removed the comments with a regex (in the regex101 link, click on "substitution" on the left panel to see the version without comments). [*]

Then I pasted the comment-less version in an online JSON parser.

The output is a bit more precise:

Parse error on line 368:
..., "Weight": 1 }    },    {      "Obje
----------------------^
Expecting ',', ']', got '}'

Find the line 368 by using some correct text editor like notepad++, and indeed there is something wrong here:

    {
      "Object": "Leech",
      "Drops": [ [0, 0], [1, 65], [2, 25], [3, 10] ],
      "Loot": [
        { "Item": "Tier2EnchantMats", "Weight": 1 }   <--- line 368 without the comments
    },

In my opinion, you wanted this instead :

    {
      "Object": "Leech",
      "Drops": [ [0, 0], [1, 65], [2, 25], [3, 10] ],
      "Loot": [
        { "Item": "Tier2EnchantMats", "Weight": 1 }
      ]
    },

You forgot to close the array 'Loot' ! (closing bracket needed)

I'll let you repeat the process to check for other syntax errors.

Note: [*] Even though some JSON parsers may accommodate comments, the JSON specifications don't authorize them at all, as for this parser.

Source https://stackoverflow.com/questions/66933866

QUESTION

Rails - How to add pagination to Fastjson api?

Asked 2021-Feb-27 at 07:55

The default result of rendering FastJsonApi gem serialized_json like below:

render json: FlashcardSerializer.new(flashcards).serialized_json

would be something like this:

{
 "data": [
    {
      "id": "1",
      "type": "flashcard",
      "attributes": {
        "question": "why?",
        "answer": "pretty good",
        "slug": null
      }
    },
    {
      "id": "2",
      "type": "flashcard",
      "attributes": {
        "question": "What is 0",
        "answer": "it is 0",
        "slug": null
       }
    }
  ]
}

I would rather add some extra information especially for pagination and I like the result to be something like this:

{
 "data": [
    {
      "id": "1",
      "type": "flashcard",
      "attributes": {
        "question": "why?",
        "answer": "pretty good",
        "slug": null
      }
    },
    {
      "id": "2",
      "type": "flashcard",
      "attributes": {
        "question": "What is 0",
        "answer": "it is 0",
        "slug": null
       }
    },
    "count":100,
     "page":1,
  ]
}

I am aware of other available gems that manage pagination in API, and I know how to do it without Fastjson. The main issue here is that is there any way to get the aforementioned result from this gem without changing a lot in the code. Thanks

ANSWER

Answered 2021-Feb-27 at 07:55

The desired document would be invalid according to the JSON API specification. You would need to include next and previous links in a link section. The current and total_count would belong in the meta section.

{
 "data": [
    {
      "id": "1",
      "type": "flashcard",
      "attributes": {
        "question": "why?",
        "answer": "pretty good",
        "slug": null
      }
    },
    {
      "id": "2",
      "type": "flashcard",
      "attributes": {
        "question": "What is 0",
        "answer": "it is 0",
        "slug": null
       }
    },
  ]
  "meta": {
    "page": { "current": 1, "total": 100 }
  },
  "links": {
    "prev": "/example-data?page[before]=yyy&page[size]=1",
    "next": "/example-data?page[after]=yyy&page[size]=1"
  },
}

Have a look at the JSON API specification before you continue designing the API.

You can pass these information into the serializer as an options argument

class FlashcardsController < ApplicationController
  def index
    render json: FlashcardSerializer.new(
      flashcards, { links: {}, meta: { page: { current: 1 } }
    ).serialized_json
  end
end

How you generate the data depends what you use to paginate.

If you design a new API, I would also recommend to use cursor based pagination rather than offset pagination because of it's limitations.

https://github.com/Netflix/fast_jsonapi#compound-document https://github.com/Netflix/fast_jsonapi/blob/master/spec/lib/object_serializer_spec.rb#L8-L32

Source https://stackoverflow.com/questions/66387607

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.(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.(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.(DatabaseMetaData.java:100) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpDatabaseMetaData.(HttpDatabaseMetaData.java:34) ~[neo4j-jdbc-driver-3.1.0.jar:na]
    at org.neo4j.jdbc.http.HttpDatabaseMetaData.(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



    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.3.4.RELEASE
         
    
    com.neo4j.dw
    dw
    0.0.1-SNAPSHOT
    amazonMovies
    Amazon Movies Data Warehouse

    
    
    

    
        
            org.springframework.boot
            spring-boot-starter-web
        
        
            org.springframework.boot
            spring-boot-starter
        
        
            org.springframework.boot
            spring-boot-starter-data-neo4j
        
        
            org.springframework.boot
            spring-boot-devtools
            runtime
            true
        
        
            org.projectlombok
            lombok
            true
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
            
                
                    org.junit.vintage
                    junit-vintage-engine
                
            
        

        
            org.neo4j
            neo4j-jdbc-driver
            3.1.0
        
        
        
            org.mybatis
            mybatis
            3.5.2
        
        
            junit
            junit
            4.12
        
        
        
            io.springfox
            springfox-bean-validators
            2.9.2
        
        
            org.springframework.boot
            spring-boot-configuration-processor
            true
        
        
        
            com.baomidou
            mybatis-plus-boot-starter
            3.4.0
        
        
            org.springframework.boot
            spring-boot-starter-freemarker
        
        
            javax.validation
            validation-api
            2.0.1.Final
        
        
            com.baomidou
            mybatis-plus-generator
            3.4.0
            
                
                    mybatis
                    org.mybatis
                
            
        

        
            com.auth0
            java-jwt
            3.9.0
        
        
        
            com.alibaba
            fastjson
            1.2.47
        
        
            org.json
            json
            20190722
        

        
            org.apache.httpcomponents
            httpclient
        

        
            org.bouncycastle
            bcprov-jdk16
            1.46
        

        
        
            com.baomidou
            mybatis-plus
            3.4.0
        
    


    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    com.neo4j.dw.DwApplication
                    
                        
                            org.springframework.boot
                            spring-boot-configuration-processor
                        
                    
                
            

            
                org.springframework.boot
                spring-boot-maven-plugin
                
                    true

mybatis_config.xml

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 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 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 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




    
        MATCH (n1)-[r]->(n2) RETURN count(*)

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

QUESTION

Error creating bean with name 'projectController': Unsatisfied dependency expressed through field 'service';

Asked 2020-Nov-20 at 07:59

I use the following configuration and code to create a spring boot application.

pom.xml:



    
        jeecg-boot-parent
        org.jeecgframework.boot
        2.3.0
    
    4.0.0
    my-pm-project
    
        
            org.jeecgframework.boot
            jeecg-system-cloud-api
        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-nacos-discovery
        
        
            com.alibaba.cloud
            spring-cloud-starter-alibaba-sentinel
        
        
            org.jeecgframework.boot
            jeecg-boot-base-common
        
        
            org.springframework.boot
            spring-boot-starter-data-mongodb

Controller:

package cn.my.pm.project.controller;

import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.jeecg.common.api.vo.Result;
import org.jeecg.common.system.query.QueryGenerator;
import org.jeecg.common.util.oConvertUtils;
import cn.my.pm.project.entity.Project;
import cn.my.pm.project.service.IProjectService;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import lombok.extern.slf4j.Slf4j;
import org.jeecg.common.system.base.controller.JeecgController;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import com.alibaba.fastjson.JSON;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.jeecg.common.aspect.annotation.AutoLog;


@RestController
@RequestMapping("/project/project")
@Slf4j
public class ProjectController extends JeecgController {
    @Autowired
    private IProjectService projectService;
    

    @GetMapping(value = "/list")
    public Result queryPageList(Project project,
                                   @RequestParam(name="pageNo", defaultValue="1") Integer pageNo,
                                   @RequestParam(name="pageSize", defaultValue="10") Integer pageSize,
                                   HttpServletRequest req) {
        QueryWrapper queryWrapper = QueryGenerator.initQueryWrapper(project, req.getParameterMap());
        Page page = new Page(pageNo, pageSize);
        IPage pageList = projectService.page(page, queryWrapper);
        return Result.OK(pageList);
    }
    

    @PostMapping(value = "/add")
    public Result add(@RequestBody Project project) {
        projectService.save(project);
        return Result.OK("add！");
    }
    

    @PutMapping(value = "/edit")
    public Result edit(@RequestBody Project project) {
        projectService.updateById(project);
        return Result.OK("edit!");
    }
    

    @DeleteMapping(value = "/delete")
    public Result delete(@RequestParam(name="id",required=true) String id) {
        projectService.removeById(id);
        return Result.OK("delete!");
    }
    

    @DeleteMapping(value = "/deleteBatch")
    public Result deleteBatch(@RequestParam(name="ids",required=true) String ids) {
        this.projectService.removeByIds(Arrays.asList(ids.split(",")));
        return Result.OK("batch delete!");
    }
    
    
    @GetMapping(value = "/queryById")
    public Result queryById(@RequestParam(name="id",required=true) String id) {
        Project project = projectService.getById(id);
        if(project==null) {
            return Result.error("not found");
        }
        return Result.OK(project);
    }


}

Service:

package cn.my.pm.project.service;

import cn.my.pm.project.entity.Project;
import com.baomidou.mybatisplus.extension.service.IService;

public interface IProjectService extends IService {

}

ServiceImpl:

package cn.my.pm.project.service.impl;

import cn.my.pm.project.entity.Project;
import cn.my.pm.project.mapper.ProjectMapper;
import cn.my.pm.project.service.IProjectService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

@Service
@Slf4j
public class ProjectServiceImpl extends ServiceImpl implements IProjectService {

}

Mapper:

package cn.my.pm.project.mapper;

import java.util.List;
import org.apache.ibatis.annotations.Param;
import cn.my.pm.project.entity.Project;
import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import org.springframework.stereotype.Service;

public interface ProjectMapper extends BaseMapper {

}

ProjectMapper.xml:

Entity:

package cn.my.pm.project.entity;

import java.io.Serializable;
import java.io.UnsupportedEncodingException;
import java.util.Date;
import java.math.BigDecimal;
import com.baomidou.mybatisplus.annotation.IdType;
import com.baomidou.mybatisplus.annotation.TableId;
import com.baomidou.mybatisplus.annotation.TableName;
import lombok.Data;
import com.fasterxml.jackson.annotation.JsonFormat;
import org.springframework.format.annotation.DateTimeFormat;
import org.jeecgframework.poi.excel.annotation.Excel;
import org.jeecg.common.aspect.annotation.Dict;
import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.EqualsAndHashCode;
import lombok.experimental.Accessors;

@Data
@TableName("my_info")

public class Project implements Serializable {
    private static final long serialVersionUID = 1L;
    private java.lang.String id;
    private java.lang.String myName;
    private java.lang.String myType;
    private java.lang.String myType;
    private java.lang.String myManager;
    private java.lang.String myInfo;
    private java.lang.String myDetails;
    private java.lang.String myImage;

}

Application:

package cn.my;

import org.apache.shiro.spring.boot.autoconfigure.ShiroAnnotationProcessorAutoConfiguration;
import org.apache.shiro.spring.boot.autoconfigure.ShiroAutoConfiguration;
import org.apache.shiro.spring.boot.autoconfigure.ShiroBeanAutoConfiguration;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;

@SpringBootApplication(exclude = {ShiroAnnotationProcessorAutoConfiguration.class, ShiroAutoConfiguration.class, ShiroBeanAutoConfiguration.class})
@EnableDiscoveryClient
@EnableFeignClients
public class ProjectApplication {

    public static void main(String[] args) {
        SpringApplication.run(ProjectApplication.class, args);
    }
}

But when I run the application,the error message is:

ERROR org.springframework.boot.SpringApplication:858 - Application run failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'projectController': Unsatisfied dependency expressed through field 'service'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'projectServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'cn.my.pm.project.mapper.ProjectMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:596)
    at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:374)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1395)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:592)
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515)
    at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$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:849)
    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:142)
    at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:775)
    at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:316)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1260)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1248)
    at cn.my.ProjectApplication.main(ProjectApplication.java:18)
Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'projectServiceImpl': Unsatisfied dependency expressed through field 'baseMapper'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'cn.my.pm.project.mapper.ProjectMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    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:1395)
    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$0(AbstractBeanFactory.java:320)
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318)
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)
    at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1247)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1167)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
    ... 19 common frames omitted
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'cn.my.pm.project.mapper.ProjectMapper' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoMatchingBeanFound(DefaultListableBeanFactory.java:1654)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1213)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1167)
    at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:593)
    ... 32 common frames omitted
Disconnected from the target VM, address: '127.0.0.1:64977', transport: 'socket'

How to fix it?

ANSWER

Answered 2020-Nov-18 at 06:08

Spring's complaint is that you haven't defined a Bean of type ProjectMapper, which it is saying that it needs to satisfy an Autowire request. Looking at your code, I don't see a definition for such a Bean in what you've shown us here.

The exact point of the problem is hidden, I'm guessing, because you aren't showing us the definition of the ServiceImpl class. My guess is that that's where the actual reference is that Spring is trying to wire up. Apparently, the field name is baseMapper.

Source https://stackoverflow.com/questions/64887470

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