javascript
Java Servlet生成JSON格式数据并用jQuery显示
1、Servlet通過json-lib生成JSON格式的數(shù)據(jù)
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import json.Person;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;
@WebServlet("/JSONServlet")
public class JSONServlet extends HttpServlet {
public JSONServlet() {
super();
}
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("application/x-json");
response.setCharacterEncoding("GBK");
PrintWriter out = response.getWriter();
ArrayList<Person> items=new ArrayList<Person>();
items.add(new Person(2,"jack"));
items.add(new Person(2,"bob"));
items.add(new Person(2,"alex"));
JSONArray jsonArray=new JSONArray();
jsonArray.addAll(items);
out.print(jsonArray.toString());
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request,response);
}
public void init() throws ServletException {
// Put your code here
}
}
2、前端頁面代碼
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!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=ISO-8859-1">
<title>Insert title here</title>
<script type="text/javascript" src="js/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
$(document).ready(
function() {
$("#kick").click(
function() {
$.ajax({
type : "post",//post方法
url : "JSONServlet",
data : {
"legs" : "2",
"name" : "aa"
},
//ajax成功的回調(diào)函數(shù)
success : function(returnData) {
var arr = eval(returnData);
$.each(arr, function(index, content) {
$("#result").append(
"<div>" + content.legs
+ "</div>" + "<div>"
+ content.name
+ "</div><hr/>");
});
}
});
});
});
</script>
</head>
<body>
<input type="button" id="kick" value="kick">
<div id="result"></div>
</body>
</html>
jQuery也可以用.getJSON實(shí)現(xiàn)異步數(shù)據(jù)獲取
<script type="text/javascript">
$(document).ready(
function() {
$("#kick").click(function() {
$.getJSON("JSONServlet",function(returnData){
var arr = eval(returnData);
$("#result").html("");//清空info內(nèi)容
$.each(arr, function(index, content) {
$("#result").append(
"<div>" + content.legs
+ "</div>" + "<div>"
+ content.name
+ "</div><hr/>");
});
});
});
});
</script>
轉(zhuǎn)載于:https://www.cnblogs.com/zhouhb/p/4895875.html
與50位技術(shù)專家面對(duì)面20年技術(shù)見證，附贈(zèng)技術(shù)全景圖總結(jié)
以上是生活随笔為你收集整理的Java Servlet生成JSON格式数据并用jQuery显示的全部內(nèi)容，希望文章能夠幫你解決所遇到的問題。
- 上一篇： 每个人都有一条属于自己的路，既然来了这个
- 下一篇： Spring MVC一事务控制问题