JS获取request参数 和改变request参数

来源地址

http://www.jb51.net/article/32627.htm

http://www.oschina.net/code/snippet_1398304_44646

给request赋值

function changeURLPar(destiny, par, par_value) { var pattern = par+'=([^&]*)'; var replaceText = par+'='+par_value; if (destiny.match(pattern)) { var tmp = '/'+par+'=[^&]*/g'; tmp = destiny.replace(eval(tmp), replaceText); return (tmp); } else { if (destiny.match('[\?]')) { return destiny+'&'+ replaceText; } else { return destiny+'?'+replaceText; } } return destiny+'\n'+par+'\n'+par_value; } 

使用

destiny是目标字符串，比如是http://www.huistd.com/?id=3&ttt=3
par是参数名，par_value是参数要更改的值，调用结果如下：
changeURLPar(test, 'id', 99); // http://www.huistd.com/?id=99&ttt=3
changeURLPar(test, 'haha', 33); // http://www.huistd.com/?id=99&ttt=3&haha=33 

取值

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]);returnnull;

}

 

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 =newObject();

   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]);

      }

   }

   returntheRequest;

}

</Script></span>

 

这样调用：

复制代码

 

<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>