javascript parseUrl函数解析url获取网址url参数

 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 }

使用实例：

 1 var myURL = parseURL('http://abc.com:8080/dir/index.html?id=255&m=hello#top'); 
 2 myURL.file; // = 'index.html' 
 3 myURL.hash; // = 'top' 
 4 myURL.host; // = 'abc.com' 
 5 myURL.query; // = '?id=255&m=hello' 
 6 myURL.params; // = Object = { id: 255, m: hello } 
 7 myURL.path; // = '/dir/index.html' 
 8 myURL.segments; // = Array = ['dir', 'index.html'] 
 9 myURL.port; // = '8080' 
10 myURL.protocol; // = 'http' 
11 myURL.source; // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top'