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@@ -0,0 +1,39 @@
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+<!DOCTYPE html>
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+<html>
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+<head>
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+ <script type="text/javascript">
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+ function ajaxFunction()
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+{
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+ var xmlhttp;
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+ //判断浏览器
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+ if (window.XMLHttpRequest)
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+ {
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+ xmlhttp=new XMLHttpRequest();
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+ }
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+ else
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+ {
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+ xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
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+ }
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+ //每当readyState 改变时,就会触发 onreadystatechange 事件
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+ xmlhttp.onreadystatechange=function()
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+ {
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+ if (xmlhttp.readyState==4 && xmlhttp.status==200)
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+ {
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+ document.getElementById("myDiv").innerHTML=xmlhttp.responseText;
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+ }
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+ }
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+ //XMLHttpRequest.open('post', url, true);
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+ xmlhttp.open("post","visit.jsp",true);
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+ //在利用xmlhttp的send()提交表格,并且需要在服务器端通过request.getParameter("paraName")来就收的话,先要加入header参数
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+ xmlhttp.send();
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+}
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+
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+</script>
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+</head>
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+<body>
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+
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+<button type="button" onclick="ajaxFunction()" >点击刷新访客量</button>
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+<div id="myDiv"></div>
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+
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+</body>
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+</html>
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