js获取url参数

function request(paras) {
        var url = location.href;
        var paraString = url.substring(url.indexOf("?") + 1, url.length).split("&");
        var paraObj = {}
        for (i = 0; j = paraString[i]; i++) {
            paraObj[j.substring(0, j.indexOf("=")).toLowerCase()] = j.substring(j.indexOf("=") + 1, j.length);
        }
        var returnValue = paraObj[paras.toLowerCase()];
        if (typeof (returnValue) == "undefined") {
            return "";
        } else {
            return returnValue;
        }
    }

 

var facadeInteriorResourceInfoID = request("facadeInteriorResourceInfoID");

var facadeInteriorImageID = request("facadeInteriorImageID");

 另外一种方式，效率更高些，且更完善（来自JavaScript高级编程）：

 function getQueryStringArgs() {
        var qs = (location.search.length > 0 ? location.search.substring(1) : ""),
        args = {},
        items = qs.length ? qs.split("&") : [],
        item = null,
        name = null,
        value = null,
        i = 0,
        len = items.length;

        for (i = 0; i < len; i++) {
            item = items[i].split("=");
            name = decodeURIComponent(item[0]);
            value = decodeURIComponent(item[1]);

            if (name.length) {
                args[name] = value;
            }
        }

        return args;
    }

    //查询字符串为?q=javascript&num=10
    var args = getQueryStringArgs();
    alert(args["q"]); //"javascript"
    alert(args["num"]);//"10"