<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<script type="text/javascript" src="jquery-1.7.1.min.js"></script>
<title>Insert title here</title>
<script>
var url = 'http://chaxun.1616.net/s.php?type=ip&output=json&callback=?&_=' + Math.random();
$.getJSON(url, function(data) {
//alert(data.Ip);擷取目前使用者的ip位址
});
</script>
</head>
<body>
<div><iframe style="float: right;" width="420" scrolling="no" height="60" frameborder="0" allowtransparency="true" src="http://i.tianqi.com/index.php?c=code&id=12&icon=1&num=5"></iframe></div>
</body>
</html>
JS擷取目前地區的天氣資訊和目前使用者的IP位址 
![主流浏覽器四大綜合性能測試[圖]](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=)