json数组对像转换成java对象集合

来源：互联网发布：c语言字符串长度函数编辑：程序博客网时间：2024/04/28 15:13

index.jsp页面
<%@ 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>
<%String path = request.getContextPath(); %>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<script type="text/javascript" src="<%=path%>/content/scripts/json/json2.js"></script>
<script type="text/javascript" src="<%=path%>/content/scripts/jquery/jquery-1.4.2.js"></script>
<script type="text/javascript" src="<%=path%>/content/scripts/jquery/jquery-1.4.2.min.js"></script>
<script type="text/javascript">
/* js对象 */
function sendPerson(name,phone,email){
 this.receiverName = name;
 this.phone=phone;
 this.email = email;
}
function send(){
//定义js数组
var arrObj = new Array();
//创建js对象
for (var i = 0; i < 10; i++) {
var person = new sendPerson(i,i+1,i+2);
arrObj.push(person);
}
if(arrObj.length>0){
var send_obj = JSON.stringify(arrObj); 
}
}
function sendUserAjax(send_obj){
 $.ajax({
        type: "post",
        dataType:'json', //接受数据格式 
        data:"send_obj="+send_obj,
        url: "<%=path%>/messageMgt/sendMessage.do",
        success: function(data){
        $.messager.alert('提示','发送成功！'); 
        },
        error:function(){
        $.messager.alert('提示','发送失败！'); 
        }
 });
}
</script>
</head>
<body>
<input type="button" value="发送" onclick="send()" />
</body>
</html>

java后台类
package com.myself.entity;
/**
*发送信息对象
*/
public class MsgSendObj {
private String phone;
private String email;
private String receiverName;
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getReceiverName() {
return receiverName;
}
public void setReceiverName(String receiverName) {
this.receiverName = receiverName;
}
@Override
public String toString() {
return "MsgSendObj [phone=" + phone + ", email=" + email
+ ", receiverName=" + receiverName + "]";
}
public MsgSendObj(String phone, String email, String receiverName) {
super();
this.phone = phone;
this.email = email;
this.receiverName = receiverName;
}
public MsgSendObj() {
super();
// TODO Auto-generated constructor stub
}
}

控制器中的处理
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.mvc.multiaction.MultiActionController;

import com.dfec.goipfsys.ms.vo.MsgSendObj;

import net.sf.json.JSONArray;
import net.sf.json.JSONObject;


public class sendController  extends MultiActionController {
/**
 * 发送消息
 * @param request
 * @param response
 */
public void sendMessage(HttpServletRequest request,HttpServletResponse response){
String send_obj = request.getParameter("send_obj");
List<MsgSendObj> sendObjList = getDTOArray(send_obj,MsgSendObj.class);
System.out.println(sendObjList);//ava对象集合输出
JSONObject json = JSONObject.fromObject(true);
response.setCharacterEncoding("utf-8");
try {
response.getWriter().print(json);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
/**
 * 将json数组解析成java对象集合
 * @param jsonString
 * @param clazz
 * @return
 */
public static List getDTOArray(String jsonString, Class clazz){
    JSONArray array = JSONArray.fromObject(jsonString);  
    List beans = new ArrayList<>();  
        for(int i = 0; i < array.size(); i++){  
             JSONObject jsonObject = array.getJSONObject(i);  
             beans.add( JSONObject.toBean(jsonObject,clazz));//将建json对象转换为Person对象放到list集合中 
        }  
        return beans;  
} 
}

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