js 擷取請求位址中的參數

js中如何擷取浏覽器請求位址中的參數呢?

js擷取請求的query string

var getpageparams = function(){  

            var i,ilen,strs,keyname,keyvalue,  

                    params={},  

                    path = window.location.pathname,  

                    url = window.location.href;  

            if(url.indexof("?")>-1){  

                var index=url.indexof("?");  

                strs=url.substring(index+1);  

                console.log(strs);  

                strs=strs.split("&");  

                ilen=strs.length;  

                for(i=0;i<ilen;i++){  

                    var indexequal=strs[i].indexof('=');  

                    keyname=strs[i].substring(0,indexequal);  

                    keyvalue=strs[i].substring(indexequal+1);  

                    if(keyname=="callback") keyvalue=decodeuricomponent(keyvalue);  

                    params[keyname]=keyvalue;  

                }  

            }  

            return params;  

        };  

        console.log(getpageparams());  

請求位址為:http://localhost:63342/chanjet_web_js/chanjet/js/test_whuang.html?callback=http://www.weixin.com?id=123&app=weixin

時,運作結果:

object {callback: "http://www.weixin.com?id=123", app: "weixin"}

http://localhost:63342/chanjet_web_js/chanjet/js/test_whuang.html?callback=http://www.weixin.com?id=123&app=weixin&returnurl=http://www.baidu.com 

運作結果:

object {callback: "http://www.weixin.com?id=123", app: "weixin", returnurl: "http://www.baidu.com"}