jquery的ajax兑现加法操作
日期：2014-05-16 浏览次数：20972 次
jquery的ajax实现加法操作
jsp代码
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<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">
<script type="text/javascript" src="<c:url value='/jquery/jquery-1.4.2.js'></c:url>"></script>
<script type="text/javascript">
$(function()
{
$("#button1").click(function()
{
$.ajax({
type:"POST",
url:"MyServlet",
dateType:"html",
data:{'param1':$("#param1").val(), 'param2':$("#param2").val()},
success:function(returnedData){
$("#result").val(returnedData);
}
});
})
});
</script>
</head>
<body>
<input type="text" id="param1">+
<input type="text" id="param2">=
<input type="text" id="result"><input type="button" id="button1" value="请点击">
</body>
</html>
?
servlet代码
package com.javasky.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 MyServlet extends HttpServlet
{
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException
{
System.out.println(req.getParameter("param1"));
System.out.println(req.getParameter("param2"));
int param1 = Integer.parseInt(req.getParameter("param1"));
int param2 = Integer.parseInt(req.getParameter("param2"));
resp.setHeader("param", "no-cache");
resp.setHeader("cache-control","no-cache");
PrintWriter out = resp.getWriter();
out.println(String.valueOf(param1+param2));
out.flush();
}
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
this.doPost(req, resp);
}
}
??
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