AJAX 通用与服务器段交互代码范例 客户端传入参数-----请求servlet
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<html> <head> <base href="<%=basePath%>"> <title>My JSP 'ajax2.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-1.10.2.js"></script><script type="text/javascript">$(function(){$("#btn").click(function(){$.ajax({type:"POST",url:"AjaxServlet",dataType:"html",data:{"param1":$("#param1").val(),"param2":$("#param2").val()},success: function(returnData){$("#result").val(returnData);}});});});</script> </head> <body><input type="text" id="param1">+<input type="text" id="param2">=<input type="text" id="result"><input type="button" id="btn" value="get value from server"> </body></html>package com.sun.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 AjaxServlet extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {PrintWriter out = resp.getWriter();System.out.println("do get invoked");int param1 = Integer.parseInt(req.getParameter("param1"));int param2 = Integer.parseInt(req.getParameter("param2"));out.write(String.valueOf(param1 + param2));out.flush();}@Overrideprotected void doPost(HttpServletRequest req, HttpServletResponse resp)throws ServletException, IOException {this.doGet(req, resp);}}
