JS根据key值获取URL中的参数值及把URL的参数转换成json对象

 parseQueryString: function (url) {
  var reg_url = /^[^\?]+\?([\w\W]+)$/,
   reg_para = /([^&=]+)=([\w\W]*?)(&|$|#)/g,
   arr_url = reg_url.exec(url),
   ret = {};
  if (arr_url && arr_url[1]) {
   var str_para = arr_url[1], result;
   while ((result = reg_para.exec(str_para)) != null) {
    ret[result[1]] = result[2];
   }
  }
  return ret;
 }

 getQueryString: function (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;
 }

<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]]=(strs[i].split("=")[1]);
  }
 }
 return theRequest;
}
</Script>

<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>

function GetQueryString(name) {
  var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)","i");
  var r = window.location.search.substr(1).match(reg);
  if (r!=null) return (r[2]); return null;
}
alert(GetQueryString("参数名1"));
alert(GetQueryString("参数名2"));
alert(GetQueryString("参数名3"));

alert(window.location.pathname);

alert(window.location.href);

alert(window.location.port);

alert(window.location.protocol);

alert(window.location.hash);

alert(window.location.host);

alert(window.location.search);