<span style="font-size:18px;"><%@ page language="java" import="java.util.*" pageEncoding="UTF-8" contentType="text/html; charset=UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript" src="<%=path%>/js/jquery.min.js" ></script>
<script type="text/javascript">
function sub(){
$.ajax({
dataType:"json", //数据类型为json格式
contentType: "application/x-www-form-urlencoded; charset=utf-8",
type:"GET",
url:"/ajaxTest/TestServlet",
statusCode: {404: function() {
alert('page not found'); }
},
success:function(data,textStatus){
$("#sp").html("<table border='1'><tr><td>序号</td><td>姓名</td><td>年龄</td></tr>"+
"<tr><td>"+data.people[0].id+"</td><td>"+data.people[0].name+"</td><td>"+data.people[0].age+"</td>"+
"<tr><td>"+data.people[1].id+"</td><td>"+data.people[1].name+"</td><td>"+data.people[1].age+"</td></tr></table>");
}
});
}
</script>
</head>
<body>
This is my JSP page. <br>
<input type="button" value="点击获取结果" id="btn" onclick="sub()">
<br>
result :
<span id="sp"></span> </body>
</html>
import java.io.IOException;
import java.io.PrintWriter; import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.xml.ws.Dispatch; import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject; public class TestServlet extends HttpServlet { /**
*
*/
private static final long serialVersionUID = 1L; /**
* Constructor of the object.
*/
public TestServlet() {
super();
} /**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
} /**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { response.setCharacterEncoding("UTF-8");
//json在这里存放的是数组信息
JSONObject json=new JSONObject();
JSONArray array=new JSONArray(); //两个数据
JSONObject temp1=new JSONObject();
JSONObject temp2=new JSONObject(); try {
//第一个name和sex
temp1.put("id", 1);
temp1.put("name", "张三");
temp1.put("age", "23");
array.put(0,temp1); //第二个name和sex
temp2.put("id", 2);
temp2.put("name", "李四");
temp2.put("age", "33");
array.put(1,temp2); //添加到json中
json.put("people", array);
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} //向前台的页面输出结果
PrintWriter out=response.getWriter();
out.println(json);
out.close();
} /**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { response.setContentType("text");
PrintWriter out = response.getWriter();
out.flush();
out.close();
} /**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init() throws ServletException {
// Put your code here
} }
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>ajaxTest</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<description></description>
<display-name>TestServlet</display-name>
<servlet-name>TestServlet</servlet-name>
<servlet-class>TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>TestServlet</servlet-name>
<url-pattern>/TestServlet</url-pattern>
</servlet-mapping> </web-app>
项目结构：
执行结果：
备注:项目完整代码下载链接：