js获取url参数,并根据参数跳转 

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" " http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns=" http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>获取url指定参数并跳转</title>
<script type="text/javascript">
//获取当前url？后 键值对集合指定键的值
function getParamValue(key)
{
    var url=window.location.href;
    var paramsUrl = url.substring(url.indexOf("?")+1,url.length);
    var params=[];
    if(paramsUrl.indexOf("&")!=-1)
    {
        params=paramsUrl.split("&");    
    }
    else
    {
        if(key==paramsUrl.split("=")[0])
        return paramsUrl.split("=")[1];
        else return null;
    }
    var result=new Object();
    result.key = new Array();
    result.value= new Array();
    result.get =function(value)
    {
        for(var x=0;x<this.key.length;x++)
        {
            if(this.key[x]==value)
            {
                return this.value[x];
            }
        }
        return null;
    }
    for(var x=0;x<params.length;x++)
    {
        var temp = params[x].split("=");
        result.key[x] = temp[0]; result.value[x]=temp[1];
    }
    return result.get(key);
}


//  参数名是什么就get什么  xxxx.php?str=new&ih=5&id=5666  getParamValue("id")  ->5666
//alert(getParamValue("id"));
//下面这个拼接函数自己封装下.
function toUrl(flag)
{
     if(flag==null) return false;
     window.location = " http://www.abc.com/"+flag+".php";
}
//自动跳转
toUrl(getParamValue("str"));


//点击链接进行跳转的
function toUrl2()
{
    flag = getParamValue("ll")
    if(flag==null) flag = 'sj';
    window.location = " http://localhost/test/get2.php?key="+flag+"";
}


</script>
</head>
<body>

<a href="javascript:()" onclick="toUrl2()">下载</a>

</body>
</html>

 

posted @ 2015-07-09 11:32  风尘守望者  阅读(1296)  评论(0)    收藏  举报