转载自: http://www.cnblogs.com/rubylouvre/archive/2010/06/09/1755051.html
在外国一博客看到一个很好的
1 function parseURL(url) {
2 var a = document.createElement('a');
3 a.href = url;
4 return {
5 source: url,
6 protocol: a.protocol.replace(':',''),
7 host: a.hostname,
8 port: a.port,
9 query: a.search,
10 params: (function(){
11 var ret = {},
12 seg = a.search.replace(/^\?/,'').split('&'),
13 len = seg.length, i = 0, s;
14 for (;i<len;i++) {
15 if (!seg[i]) { continue; }
16 s = seg[i].split('=');
17 ret[s[0]] = s[1];
18 }
19 return ret;
20 })(),
21 file: (a.pathname.match(/\/([^\/?#]+)$/i) || [,''])[1],
22 hash: a.hash.replace('#',''),
23 path: a.pathname.replace(/^([^\/])/,'/$1'),
24 relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [,''])[1],
25 segments: a.pathname.replace(/^\//,'').split('/')
26 };
27 }
用法:
1 var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top');
2
3 myURL.file; // = 'index.html'
4 myURL.hash; // = 'top'
5 myURL.host; // = 'abc.com'
6 myURL.query; // = '?id=255&m=hello'
7 myURL.params; // = Object = { id: 255, m: hello }
8 myURL.path; // = '/dir/index.html'
9 myURL.segments; // = Array = ['dir', 'index.html']
10 myURL.port; // = '8080'
11 myURL.protocol; // = 'http'
12 myURL.source; // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'
取得URL的参数,以对象形式返回!
1 var getParam = function(path){
2 var result = {},param = /([^?=&]+)=([^&]+)/ig,match;
3 while((match = param.exec(path)) != null){
4 result[match[1]] = match[2];
5 }
6 return result;
7 }
8
9 Object.keys = Object.keys || function(obj){
10 var result = [];
11 for(var i in obj){
12 if(obj.hasOwnProperty(i)){
13 result.push(i)
14 }
15 }
16 return result;
17 }
18 var path = "http://tieba.baidu.com/f?ct=318767104&tn=baiduKeywordSearch&sc=1&pn=0&rn=50&lm=4&rs4=2&rs3=2&word=%D0%C2%BE%D3%D5%D1%C4%CB&frs=jpq";
19
20 var r = getParam(path);
21 alert(Object.keys(r))//ct,tn,sc,pn,rn,lm,rs4,rs3,word,frs
//2010.9.22更新
function getParam(name){//获取参数值 by司徒正美
var sUrl = window.location.search.substr(1);
var r = sUrl.match(new RegExp("(^|&)" + name + "=([^&]*)(&|$)"));
return (r == null ? null : unescape(r[2]));
}