前端借助接口获取ip地址

<script language="javascript" src="http://www.codefans.net/ajaxjs/jquery1.3.2.js"></script>
<script language="javascript">
jQuery(function($){
    var url='http://chaxun.1616.net/s.php?type=ip&output=json&callback=?&_='+Math.random();
    $.getJSON(url,function(data){
        alert(data.Ip);
    });
});
</script>