jquery post方法在servlet中的使用方法 -

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jquery post方法在servlet中的使用方法

<%@ page language="java" import="java.util.*" pageEncoding="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="jquery/jquery-1.8.0.min.js"></script>
<script type="text/javascript">
function subTest(){
$.post("DoIndex", { name: "John", time: "2pm" },
 function(data){
 $("#test").html(data);
 });
}
</script>
 </head>
 
 <body>
 <input type="button" name="测试" value="测试" onclick="subTest()"></input>
 <h1 id="test"></h1>
 </body>
</html>

servlet中的写法

package com.dragon.servlet;
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;
public class DoIndex extends HttpServlet {
/**
 * 
 */
private static final long serialVersionUID = 1L;
/**
 * Constructor of the object.
 */
public DoIndex() {
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.setContentType("text/html");
//PrintWriter out = response.getWriter();
//out
//.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
//out.println("<HTML>");
//out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
//out.println(" <BODY>");
//out.print(" This is ");
//out.print(this.getClass());
//out.println(", using the GET method");
//out.println(" </BODY>");
//out.println("</HTML>");
//out.flush();
//out.close();
this.doPost(request, response);
}
/**
 * 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 {
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.write("数据查询成功！");
//out.println("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\">");
//out.println("<HTML>");
//out.println(" <HEAD><TITLE>A Servlet</TITLE></HEAD>");
//out.println(" <BODY>");
//out.print(" This is ");
//out.print(this.getClass());
//out.println(", using the POST method");
//out.println(" </BODY>");
//out.println("</HTML>");
out.flush();
out.close();
}
/**
 * Initialization of the servlet. <br>
 *
 * @throws ServletException if an error occurs
 */
public void init() throws ServletException {
// Put your code here
}
}