url参数

url_analyse.js

/*
 * 判断URL中是否有此参数
 */
hasQueryStringRegExp: function(url, name){
    var reg = new RegExp("(^|\\?|&)"+ name +"=([^&]*)(\\s|&|$)", "i");
    if(reg.test(url)){
        return true
    }else{
        return false
    }
},

/*
 * 分析url
 */
parseURL: function(url) {
    var a = document.createElement('a');
    a.href = url;
    return {
        source: url,
        protocol: a.protocol.replace(':', ''),
        host: a.hostname,
        port: a.port,
        query: a.search,
        params: (function () {
            var ret = {},
            seg = a.search.replace(/^\?/, '').split('&'),
            len = seg.length, i = 0, s;
            for (; i < len; i++) {
                if (!seg[i]) { continue; }
                s = seg[i].split('=');
                ret[s[0]] = s[1];
            }
            return ret;

        })(),
        file: (a.pathname.match(/\/([^\/?#]+)$/i) || [, ''])[1],
        hash: a.hash.replace('#', ''),
        path: a.pathname.replace(/^([^\/])/, '/$1'),
        relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [, ''])[1],
        segments: a.pathname.replace(/^\//, '').split('/')
    };
},

/*
 * 替换myUrl中的同名参数值
 */
replaceUrlParams: function(myUrl, newParams) {
    for (var x in newParams) {
        var hasInMyUrlParams = false;
        for (var y in myUrl.params) {
            if (x.toLowerCase() == y.toLowerCase()) {
                myUrl.params[y] = newParams[x];
                hasInMyUrlParams = true;
                break;
            }
        }
        //原来没有的参数则追加
        if (!hasInMyUrlParams) {
            myUrl.params[x] = newParams[x];
        }
    }
    var _result = myUrl.protocol + "://" + myUrl.host + ":" + myUrl.port + myUrl.path + "?";

    for (var p in myUrl.params) {
        _result += (p + "=" + myUrl.params[p] + "&");
    }

    if (_result.substr(_result.length - 1) == "&") {
        _result = _result.substr(0, _result.length - 1);
    }

    if (myUrl.hash != "") {
        _result += "#" + myUrl.hash;
    }
    return _result;
},