Javascript获取url参数值

今天碰到要在一个页面获取另外一个页面url传过来的参数，一开始很本能的想到了用 split("?")这样一步步的分解出需要的参数。

后来想了一下，肯定会有更加简单的方法的！所以在网上找到了两个很又简单实用的方法，mark下

方法一：正则分析法

function getQueryString(name) {
var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
var r = window.location.search.substr(1).match(reg);
if (r != null) return unescape(r[2]); return null;
}

这样调用：

alert(GetQueryString("参数名1"));
alert(GetQueryString("参数名2"));
alert(GetQueryString("参数名3"));

方法二：

?

<span style="font-size: 16px;"><Script language="javascript">

function GetRequest() {

var url = location.search; //获取url中"?"符后的字串

var theRequest = new Object();

if (url.indexOf("?") != -1) {

var str = url.substr(1);

strs = str.split("&");

for(var i = 0; i < strs.length; i ++) {

theRequest[strs[i].split("=")[0]]=unescape(strs[i].split("=")[1]);

}

return theRequest;

}

</Script></span>

这样调用：

<Script language="javascript">

var Request = new Object();
Request = GetRequest();
var 参数1,参数2,参数3,参数N;
参数1 = Request[\'参数1\'];
参数2 = Request[\'参数2\'];
参数3 = Request[\'参数3\'];
参数N = Request[\'参数N\'];
</Script> 

----------------------------------------------------------------------------------------------------------------------------------------
/*

获取URL中最后一项参数的值

var str=window.location.href;

//alert(str);

var es=/SouceID=/;

es.exec(str);

var right=RegExp.rightContext;

//alert(right);

//列子
    <script language="javascript">
    var str=window.location.href;
    var es=/SouceID=/;
    es.exec(str);
    var right=RegExp.rightContext;
    //alert(right);
    switch(right){
    case \'Din\':
    case \'Exh\':
    case \'Banks\':
    case \'Shop\':
    case \'Treat\':
    case \'Trip\':
         ChgTab(\'tab3\',\'tabcontent3\');
         break;
    case \'Air\':
    case \'Railway\':
    case \'Road\':
    case \'Subway\':
          ChgTab(\'tab2\',\'tabcontent2\');
          break;
   default:
         ChgTab(\'tab1\',\'tabcontent1\');
}
</script>

//以下是函数的写法

function GetParam(){

var url = document.location.href;

var name=""

if (url.indexOf("=")>0)

{

name = url.substring(url.indexOf("=")+1,url.length)

}

return name;

}

获取指定的URL参数值

URL:http://www.blogjava.net/blog?name=bainian

参数：paramName URL参数

调用方法:getParam("name")

返回值:bainian

//1.

function getParam(paramName)

{

paramValue = "";

isFound = false;

if (this.location.search.indexOf("?") == 0 && this.location.search.indexOf("=")>1)

{

arrSource = unescape(this.location.search).substring(1,this.location.search.length).split("&");

i = 0;

while (i < arrSource.length && !isFound)

{

if (arrSource[i].indexOf("=") > 0)

{

if (arrSource[i].split("=")[0].toLowerCase()==paramName.toLowerCase())

{

paramValue = arrSource[i].split("=")[1];

isFound = true;

}

i++;

}

return paramValue;

}

//2.

function Request(sName)

{

get last loc. of ?

right: find first loc. of sName

retrieve value before next &

var sURL = new String(window.location);

var sURL = document.location.href;

var iQMark= sURL.lastIndexOf(\'?\');

var iLensName=sName.length;

//retrieve loc. of sName

var iStart = sURL.indexOf(\'?\' + sName +\'=\') //limitation 1

if (iStart==-1)

{//not found at start

iStart = sURL.indexOf(\'&\' + sName +\'=\')//limitation 1

if (iStart==-1)

{//not found at end

return 0; //not found

}

iStart = iStart + + iLensName + 2;

var iTemp= sURL.indexOf(\'&\',iStart); //next pair start

if (iTemp ==-1)

{//EOF

iTemp=sURL.length;

}

return sURL.slice(iStart,iTemp ) ;

sURL=null;//destroy String

}
----------------------------------------------------------------------------------------------------------------------------------------
比如一条url：http://127.0.0.1/index.html?id=999&type=2

那么在index.html中这样写就可以获得id和type的值

var id=$.query.get("id"); // id=999

var type=$.query.get("type"); // type=2

插件的代码如下：

http://blog.jiqila.com/post/164/