关于对象转JSON的例子
package com.cust.renwuyi.controller;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
//import org.json.JSONObject;//跟下面的import net.sf.json.JSONObject; 不共存
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.cust.renwuyi.pojo.Renwuyi;
import net.sf.json.JSONObject;
//他的使用方法 JSONObject jsonObject =JSONObject.fromObject(user);
@Controller
public class ReuwuyiController {
@RequestMapping("/json1.do")
public void user(HttpServletResponse response, HttpServletRequest request) throws IOException {
Renwuyi user = new Renwuyi("坂田银时", "男", 26);
// 将user对象转换成JSONOBJECT
JSONObject jsonObject =JSONObject.fromObject(user);
// ResponseBodyJSON.out(response,jsonObject.toString());
// 编码类型
response.setCharacterEncoding("utf-8");
// 请求头
response.setContentType("text/html; charset=utf-8");//要加上编码类型跟请求头,中文最后能显示出来.
response.getWriter().print(jsonObject.toString());
}
@RequestMapping("/json2.do")
public void user_list(HttpServletResponse response, HttpServletRequest request) throws IOException {
List<Renwuyi> ListUser = new ArrayList<Renwuyi>(0);
ListUser.add(new Renwuyi("志村新八", "男", 16));
// 将user list转换成JSONOBJECT
JSONArray jsonListUser =JSONArray.fromObject(ListUser);
// 编码类型
response.setCharacterEncoding("utf-8");
// 请求头
response.setContentType("text/html; charset=utf-8");
response.getWriter().print(jsonListUser.toString());
}
@RequestMapping("/json3.do")
public void user_map(HttpServletResponse response, HttpServletRequest request) throws IOException {
Map<String, Renwuyi> mapUser = new HashMap<String, Renwuyi>(0);
mapUser.put("1", new Renwuyi("神乐", "女", 16));
// 将user map转换成JSONOBJECT
//JSONObject jsonMapUser = new JSONObject(mapUser);
JSONArray jsonarray= JSONArray.fromObject(mapUser);
// 编码类型
response.setCharacterEncoding("utf-8");
// 请求头
response.setContentType("text/html; charset=utf-8");
response.getWriter().print(jsonarray.toString());
}
}
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<input type="button" id="submitForm1" value="提交1"/>
<input type="button" id="submitForm2" value="提交2"/>
<input type="button" id="submitForm3" value="提交3"/>
<script type="text/javascript">
function a(){
$('#submitForm1').click(function(){
var a;
$.ajax({
type:"POST",
dataType:"JSON",
url:"/json1.do",
success:function(data){
alert(data);
}
});
});
}
function b(){
$('#submitForm2').click(function(){
var a;
$.ajax({
type:"POST",
dataType:"JSON",
url:"/json2.do",
success:function(data){
alert(data);
}
});
});
}
function c(){
$('#submitForm3').click(function(){
var a;
$.ajax({
type:"POST",
dataType:"JSON",
url:"/json3.do",
success:function(data){
alert(data);
}
});
});
}
</script>
</body>
</html>
