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

 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>