How Jquery+ajax+springMVC returns json

JSP page:

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>



	
	
  	
  	




	

    	
欢迎登录

    	

    		

    		

    			

    				
用户名：
    				

    				

    			
    			

    				
密 码：
    				

    				

    			
    			

    				
用户名：
    				

    				

    			
    			

    				

    					
    				
    			
    			

    				

    					ajax测试1
    				
    			
    		
    		
    	

    

Backend control class:

package com.login.control;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import com.alibaba.fastjson.JSONObject;
import com.login.bean.Users;
import com.login.service.UsersService;

/**
 * 用户控制类
 * @author
 *
 */
@Controller
public class UsersControl {
	
	@RequestMapping(value="ajax1.action",method= RequestMethod.POST)    	@ResponseBody
	public Object ajax1(HttpServletRequest request){
		System.out.println("进入控制类");
		JSONObject json = new JSONObject();
		String ms = "ajax测试1成功！哈哈!";
		json.put("ms", ms);
		System.out.println("出控制类");
		return json;
	}
}

You must add these two sentences to return json Value

@RequestMapping(value="ajax1.action",method= RequestMethod.POST)
@ResponseBody

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