Ajax实现不刷屏的前提下实现页面定…

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index.jsp
<%@ page language="java" import="java.util.*"pageEncoding="Gb2312"%>
<%
String path = request.getContextPath();
String basePath =request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">

<title>My JSP 'index.jsp' startingpage</title>

<meta http-equiv="pragma" c>
<meta http-equiv="cache-control"c>
<meta http-equiv="expires" c>
<meta http-equiv="keywords" c>
<meta http-equiv="description"c>
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
<script type="text/javascript">
<!--
//建立XMLHttpRequest对象
var xmlhttp;
try{
xmlhttp= new ActiveXObject('Msxml2.XMLHTTP');
}catch(e){
try{
xmlhttp= new ActiveXObject('Microsoft.XMLHTTP');
}catch(e){
try{
xmlhttp= new XMLHttpRequest();
}catch(e){}
}
}
function getPart(url){
xmlhttp.open("get",url,true);
xmlhttp.onreadystatechange = function(){
if(xmlhttp.readyState == 4)
{
if(xmlhttp.status == 200)
{
if(xmlhttp.responseText!=""){
document.getElementByIdx("partdiv").innerHTML =unescape(xmlhttp.responseText);
}
}
else{
document.getElementByIdx("partdiv").innerHTML = "数据加载出错";
}
}
}
xmlhttp.setRequestHeader("If-Modified-Since","0");
xmlhttp.send(null);
}
setInterval("getPart('test.jsp')",1000)
//-->
</script>
</head>
<body>
index
下面是test.jsp的数据
<divid="partdiv"></div><!--局部刷新数据的容器-->
</body>
</html>

test.jsp
<%@ page language="java" import="java.util.*"pageEncoding="GB2312"%>
<%
String path = request.getContextPath();
String basePath =request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01Transitional//EN">
<html>
<head>
<basehref="<%=basePath%>">

<title>My JSP 'test.jsp' startingpage</title>

<meta http-equiv="pragma" c>
<meta http-equiv="cache-control"c>
<meta http-equiv="expires" c>
<meta http-equiv="keywords" c>
<meta http-equiv="description"c>
<!--
<link rel="stylesheet" type="text/css"href="styles.css">
-->
</head>

<body>
这里就是test页面的内容了,在这个页面上你想做什么就做什么<br/>
这样就简单的实现了Ajax不刷屏的前提下实现页面定时刷新的功能
<br/>


希望大家以后多多支持本论坛
</body>
</html>