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[{
   \"status\":0}, {
   \"message\": \"成功\" }, {
   \"count\": 1000},{
   \"data\": {
   }}]

• 按要返回数据的格式编写类

public class Result {
       /**     * "[{\"status\":0}, {\"message\": \"成功\" }, {\"count\": 1000},{\"data\": {}}]";     */    private int status;    private String message;    private int count;    private Object data;    public static Result ok(Object data){
           Result Result= new Result();        Result.setStatus(0);        Result.setMessage("成功");        Result.setCount(1000);        Result.setData(data);        return Result;    }    public int getStatus() {
           return status;    }    public void setStatus(int status) {
           this.status = status;    }    public String getMessage() {
           return message;    }    public void setMessage(String message) {
           this.message = message;    }    public int getCount() {
           return count;    }    public void setCount(int count) {
           this.count = count;    }    public Object getData() {
           return data;    }    public void setData(Object data) {
           this.data = data;    }    @Override    public String toString() {
           return "Result{" +                "status=" + status +                ", message='" + message + '\'' +                ", count=" + count +                ", data=" + data +                '}';    }}

• 调用所编写类的方法

@RequestMapping(value = /select, method = RequestMethod.GET)   @ResponseBody    public Result select(@RequestParam("id") int id){
    	//查询一个用户      	User user = userService.select(id);    	//将查询出来的用户信息加工为所要求的数据格式  	Result result = Result.ok(user);  	//返回数据          	return result;    }

这样在前台就能接收到所要求的数据格式

[{
   		"status": 0	}, {
   		"message": "成功"	}, {
   		"count": 1000	}, {
   		"data": {
   			"id": 1,			"name": "张三",			"sex": "男"		}}]

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