Spring Boot返回json数据及完美使用FastJson解析Json数据

2023-01-31 15:27:44

Spring Boot返回json数据

视频地址：http://www.iqiyi.com/w_19rubxzsr5.html

博文参考：https://blog.csdn.net/linxingliang/article/details/51582294

Spring Boot完美使用FastJson解析Json数据

视频地址： http://baidu.iqiyi.com/watch/0669833408793393358.html

博文参考：
https://my.oschina.net/sdlvzg/blog/1153921
http://412887952-qq-com.iteye.com/blog/2413390

代码备份：

App.java

package edu.shy.javaee;

import java.util.ArrayList;

import java.util.List;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.autoconfigure.web.HttpMessageConverters;

import org.springframework.context.annotation.Bean;

import org.springframework.http.MediaType;

import org.springframework.http.converter.HttpMessageConverter;

import com.alibaba.fastjson.serializer.SerializerFeature;

import com.alibaba.fastjson.support.config.FastJsonConfig;

import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;

//extends WebMvcConfigurerAdapter

@SpringBootApplication

public class App{

//    @Override

//    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {

//

//        super.configureMessageConverters(converters);

//        //1、定义一个convert转换消息的对象

//        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

//        //2、添加fastjson的配置信息

//        FastJsonConfig fastJsonConfig = new FastJsonConfig();

//        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

//        //2-1 处理中文乱码问题

//        List<MediaType> fastMediaTypes = new ArrayList<>();

//        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);

//        fastConverter.setSupportedMediaTypes(fastMediaTypes);

//        //3、在convert中添加配置信息

//        fastConverter.setFastJsonConfig(fastJsonConfig);

//        //4、将convert添加到converters中

//        converters.add(fastConverter);

//    }

    //引入Fastjson解析json，不使用默认的jackson

    //必须在pom.xml引入fastjson的jar包，并且版必须大于1.2.10

    @Bean

    public HttpMessageConverters fastJsonHttpMessageConverters() {

        //1、定义一个convert转换消息的对象

        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();

        //2、添加fastjson的配置信息

        FastJsonConfig fastJsonConfig = new FastJsonConfig();

        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);

        //2-1 处理中文乱码问题

        List<MediaType> fastMediaTypes = new ArrayList<>();

        fastMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);

        fastConverter.setSupportedMediaTypes(fastMediaTypes);

        //3、在convert中添加配置信息

        fastConverter.setFastJsonConfig(fastJsonConfig);

        //4、将convert添加到converters中

        HttpMessageConverter<?> converter = fastConverter;

        return new HttpMessageConverters(converter);

    }

    /**

     * @param args

     * @throws Exception

     */

    public static void main( String[] args ) throws Exception

    {

        SpringApplication.run(App.class,args);

    }

}

JsonDemo.java

package edu.shy.javaee;

import java.util.Date;

import com.alibaba.fastjson.annotation.JSONField;

/**

 * 这是一个测试实体类

 * @author yansixing

 * @date 2018年5月10日 下午2:43:26

 */

public class JsonDemo {

    private int id;        // 主键

    private String name;        // 测试名称

    @JSONField(serialize=false)            //转为JSON时不包括此属性

    private String remark;    //备注

    @JSONField(format="yyyy-MM-dd HH:mm")        //转为JSON时按格式转换

    private Date createTime;

    public String getRemark() {

        return remark;

    }

    public void setRemark(String remark) {

        this.remark = remark;

    }

    public Date getCreateTime() {

        return createTime;

    }

    public void setCreateTime(Date createTime) {

        this.createTime = createTime;

    }

    public int getId() {

        return id;

    }

    public void setId(int id) {

        this.id = id;

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

}

HelloController.java

package edu.shy.javaee;

import java.util.Date;

import org.springframework.boot.autoconfigure.EnableAutoConfiguration;

import org.springframework.web.bind.annotation.PathVariable;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RestController;

/**

 * 在这里我们使用RestController (等价于@Controller和@RequestBody)

 * @author yansixing

 * @date 2018年5月9日 下午3:46:20

 */

/**

 * @author yansixing

 * @date 2018年5月10日 下午3:14:52

 */

/**

 * @author yansixing

 * @date 2018年5月10日 下午3:14:54

 */

/**

 * @author yansixing

 * @date 2018年5月10日 下午3:14:58

 */

@RestController

@EnableAutoConfiguration

public class HelloController {

    @RequestMapping("/")

    String home(){

        return "Hello Spring Boot!";

    }

    @RequestMapping("/hello/{myName}")

    String index(@PathVariable String myName){

        return "Hello "+myName+"!!!";

    }

    /**

     * Spring Boot默认使用的Json解析框架是Jackson

     * 请求地址：http://127.0.0.1:8089/getJson

     * @return

     */

    @RequestMapping("/getJson")

    public JsonDemo getJson(){

        JsonDemo demo=new JsonDemo();

        demo.setId();

        demo.setName("张三");

        demo.setCreateTime(new Date());

        demo.setRemark("remark");

        return demo;

    }

}

pom.xml

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">

    <modelVersion>4.0.</modelVersion>

    <groupId>edu.shy.javaee</groupId>

    <artifactId>sprint-boot-hello</artifactId>

    <version>0.0.-SNAPSHOT</version>

    <packaging>jar</packaging>

    <name>sprint-boot-hello</name>

    <url>http://maven.apache.org</url>

    <!--sprint boot 父节点依赖，引入这个之后相关的引入就不需要加version配置，sprint boot 会自动选择最合适的版本进行添加 -->

    <parent>

        <groupId>org.springframework.boot</groupId>

        <artifactId>spring-boot-starter-parent</artifactId>

        <version>1.4..BUILD-SNAPSHOT</version>

    </parent>

    <properties>

        <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>

        <!-- 指定一下jdk的版本，这里我们 使用jdk1.,默认1. -->

        <java.version>1.8</java.version>

    </properties>

    <dependencies>

        <!-- spring-boot-starter-web:MVC,AOP的依赖包 -->

        <dependency>

            <groupId>org.springframework.boot</groupId>

            <artifactId>spring-boot-starter-web</artifactId>

        </dependency>

        <dependency>

            <groupId>org.slf4j</groupId>

            <artifactId>slf4j-nop</artifactId>

            <version>1.7.</version>

        </dependency>

        <!-- https://mvnrepository.com/artifact/com.alibaba/fastjson -->

        <!-- 改变spring boot 默认的json解析，通过引入fastjson改变 -->

        <!-- fastjson版本必须 大于1.2.10 -->

        <dependency>

            <groupId>com.alibaba</groupId>

            <artifactId>fastjson</artifactId>

            <version>1.2.</version>

        </dependency>

    </dependencies>

    <!-- Package as an executable jar -->

    <build>

        <plugins>

            <plugin>

                <groupId>org.springframework.boot</groupId>

                <artifactId>spring-boot-maven-plugin</artifactId>

            </plugin>

        </plugins>

    </build>

    <!-- Add Spring repositories -->

    <!-- (you don't need this if you are using a .RELEASE version) -->

    <repositories>

        <repository>

            <id>spring-snapshots</id>

            <url>http://repo.spring.io/snapshot</url>

            <snapshots>

                <enabled>true</enabled>

            </snapshots>

        </repository>

        <repository>

            <id>spring-milestones</id>

            <url>http://repo.spring.io/milestone</url>

        </repository>

    </repositories>

    <pluginRepositories>

        <pluginRepository>

            <id>spring-snapshots</id>

            <url>http://repo.spring.io/snapshot</url>

        </pluginRepository>

        <pluginRepository>

            <id>spring-milestones</id>

            <url>http://repo.spring.io/milestone</url>

        </pluginRepository>

    </pluginRepositories>

</project>

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