spring json

控制器返回json代码：

package com.trol;import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;import com.entity.User;@Controller
public class UserController {@RequestMapping("/listJson")@ResponseBodypublic User list(){User user = new User();user.setPwd("bbb");return user;}@RequestMapping("/{id}/delete")public String delete(@PathVariable int id){System.out.println("delete--"+id);return "index";}}

实体类：

package com.entity;
import java.io.Serializable;public class User implements Serializable {//私有字段;private String username;private String pwd;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPwd() {return pwd;}public void setPwd(String pwd) {this.pwd = pwd;}}

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