parseURL工具种

url工具类

function parseURL(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('/')
    };
}

用法：
var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top');
  
myURL.file;     // = 'index.html'
myURL.hash;     // = 'top'
myURL.host;     // = 'abc.com'
myURL.query;    // = '?id=255&m=hello'
myURL.params;   // = Object = { id: 255, m: hello }
myURL.path;     // = '/dir/index.html'
myURL.segments; // = Array = ['dir', 'index.html']
myURL.port;     // = '8080'
myURL.protocol; // = 'http'
myURL.source;   // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'

取得URL的参数，以对象形式返回！
var getParam = function(path){
    var result = {},param = /([^?=&]+)=([^&]+)/ig,match;
    while((match = param.exec(path)) != null){
        result[match[1]] = match[2];
    }
    return result;
}
 
Object.keys = Object.keys || function(obj){
    var result = [];
    for(var i in obj){
        if(obj.hasOwnProperty(i)){
            result.push(i)
        }
    }
    return result;
}
var path = "http://tieba.baidu.com/f?ct=318767104&tn=baiduKeywordSearch&sc=1&pn=0&rn=50&lm=4&rs4=2&rs3=2&word=%D0%C2%BE%D3%D5%D1%C4%CB&frs=jpq";
 
var r = getParam(path);
alert(Object.keys(r))//ct,tn,sc,pn,rn,lm,rs4,rs3,word,frs
//2010.9.22更新
function getParam(name){//获取参数值 
    var sUrl = window.location.search.substr(1);
    var r = sUrl.match(new RegExp("(^|&)" + name + "=([^&]*)(&|$)"));
    return (r == null ? null : unescape(r[2]));
}

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