SpringBoot返回json数据

1.pom文件

<parent>  <!-- pring-boot-start-parent,可以提供dependency management,依赖管理，  引入以后在其它dependency的时候就不需要version了 -->  <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-parent</artifactId>    <version>1.3.3.RELEASE</version></parent><dependencies> <!-- spring-boot-start-web包含了spring webmvc和tomcat等web开发的特性 -->    <dependency>          <groupId>org.springframework.boot</groupId>          <artifactId>spring-boot-starter-web</artifactId>      </dependency> </dependencies>

2.测试的DTO实体类

package com.aruisi.dto;public class DemoDto {private String userId;private String usernName;private String phoneNumber;public String getUserId() {return userId;}public void setUserId(String userId) {this.userId = userId;}public String getUsernName() {return usernName;}public void setUsernName(String usernName) {this.usernName = usernName;}public String getPhoneNumber() {return phoneNumber;}public void setPhoneNumber(String phoneNumber) {this.phoneNumber = phoneNumber;}}

3.测试的controller类

package com.aruisi.controller;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;import com.aruisi.dto.DemoDto;/** * @SpringBootApplication申明让spring boot自动给程序进行必要的配置， * 等价于以默认属性使用@Configuration，@EnableAutoConfiguration和@ComponentScan * @RestController返回json字符串的数据 * @author zmk */@RestController@SpringBootApplicationpublic class DemoController {@RequestMapping("/demo")public DemoDto demo(){DemoDto demoDto = new DemoDto();demoDto.setPhoneNumber("xxxxxxxxxxx");demoDto.setUserId("123456789");demoDto.setUsernName("zmk");return demoDto;}public static void main(String[] args) {        SpringApplication.run(DemoController.class, args);      }}

4.右键project – Run as –Maven build – 在Goals里输入spring-boot:run,然后Apply,最后点击Run。
在浏览器访问地址：http://127.0.0.1:8080/demo返回如下数据：
{
    "userId": "123456789",
    "usernName": "zmk",
    "phoneNumber": "xxxxxxxxxxx"
}