SpringBoot入门-4（返回fastjson数据）

写在前面的话

系列教程都是从网络上收集和本人的理解所编辑而成，仅供广大爱好者学习所用，请尊重本人的劳动成果。欢迎评论指正和转帖！（请保留连接谢谢！）

一、POM.XML文件

<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/maven-v4_0_0.xsd">  <modelVersion>4.0.0</modelVersion>  <groupId>com.fs</groupId>  <artifactId>springboot_json_3</artifactId>  <packaging>war</packaging>  <version>0.0.1-SNAPSHOT</version>  <name>springboot_json_3 Maven Webapp</name>  <url>http://maven.apache.org</url>  <!-- spring boot 父节点依赖,引入这个之后相关的引入就不需要添加version配置，spring 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>1.4.1.RELEASE</version></parent><properties><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><!-- 指定一下jdk的版本 ，这里我们使用jdk 1.8 ,默认是1.6 --><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><!-- <version></version> 由于我们在上面指定了 parent(spring boot) --></dependency><!-- 添加fastjson 依赖包. --><dependency><groupId>com.alibaba</groupId><artifactId>fastjson</artifactId><version>1.2.15</version></dependency><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency></dependencies>  <build>    <finalName>springboot_json_3</finalName>  </build></project>

二、HelloController.java

package com.fs;import java.util.Date;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class HelloController {    @RequestMapping("/getJson")    public Demo getJson() {        Demo demo = new Demo();        demo.setId(1);        demo.setName("张三");        demo.setCreateTime(new Date());        return demo;    }}

三、Demo.java

package com.fs;import java.util.Date;import com.alibaba.fastjson.annotation.JSONField;public class Demo {    private int    id;    private String name;    // com.alibaba.fastjson.annotation.JSONField    @JSONField(format = "yyyy-MM-dd HH:mm")    private Date   createTime;    public int getId() {        return id;    }    public Date getCreateTime() {        return createTime;    }    public void setCreateTime(Date createTime) {        this.createTime = createTime;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }}

四、App.java

package com.fs;import java.util.List;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.http.converter.HttpMessageConverter;import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;import com.alibaba.fastjson.serializer.SerializerFeature;import com.alibaba.fastjson.support.config.FastJsonConfig;import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;@SpringBootApplicationpublic class App extends WebMvcConfigurerAdapter {    @Override    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {        super.configureMessageConverters(converters);        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();        FastJsonConfig fastJsonConfig = new FastJsonConfig();        fastConverter.setDateFormat("yyyy-MM-dd HH:mm:ss");        fastJsonConfig.setSerializerFeatures(SerializerFeature.PrettyFormat);        fastConverter.setFastJsonConfig(fastJsonConfig);        converters.add(fastConverter);    }    public static void main(String[] args) {        SpringApplication.run(App.class, args);    }}

五、运行