用javascript获取地址栏参数

来源:互联网 时间:1970-01-01

本文列举了用javascript获取地址栏参数的三种方法:


方法一:


<script type="text/javascript">
<!--
String.prototype.getQuery = function(name) { 
var reg = new RegExp("(^|&)"+ name +"=([^&]*)(&|$)"); 
var r = this.substr(this.indexOf("?")+1).match(reg); 
if (r!=null) return unescape(r[2]); return null; 

var strHref = "www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc"; 
alert(strHref.getQuery("a")); 
alert(strHref.getQuery("b")); 
alert(strHref.getQuery("c")); 
//-->
</script>


方法二:


<script type="text/javascript">
function getUrlPara(paraName){ 
var sUrl  =  location.href;
var sReg  =  "(?:\?|&){1}"+paraName+"=([^&]*)"
var re=new RegExp(sReg,"gi");
re.exec(sUrl);
return RegExp.$1;
}
//应用实例:test_para.html?a=11&b=22&c=33
alert(getUrlPara("a"));
alert(getUrlPara("b"));
</script>


方法三:


<script type="text/javascript">
<!--
function Request(strName){ 
var strHref = "www.cnlei.org/index.htm?a=aaa&b=bbb&c=ccc"; 
var intPos = strHref.indexOf("?"); 
var strRight = strHref.substr(intPos + 1); 
var arrTmp = strRight.split("&"); 
for(var i = 0; i < arrTmp.length; i++) { 
var arrTemp = arrTmp[i].split("="); 
if(arrTemp[0].toUpperCase() == strName.toUpperCase()) return arrTemp[1]; 

return ""; 

alert(Request("a")); 
alert(Request("b")); 
alert(Request("c")); 
//-->
</script>


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