用javascript替换URL中的参数值
标签:
JavaScript
今天遇到一个需要用javascript将url中的某些参数替换的需求,想起了不久前从司徒正美先生的博客中淘到了一个parseUrl函数,正好可以借此实现,代码整理如下:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | //分析url 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('/') }; } //替换myUrl中的同名参数值 function replaceUrlParams(myUrl, newParams) { /* for (var x in myUrl.params) { for (var y in newParams) { if (x.toLowerCase() == y.toLowerCase()) { myUrl.params[x] = newParams[y]; } } } */ 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; } //辅助输出 function w(str) { document.write(str + "<br>" ); } var myURL = parseURL( 'http://abc.com:8080/dir/index.html?id=255&m=hello#top' ); w( "myUrl.file = " + myURL.file) // = 'index.html' w( "myUrl.hash = " + myURL.hash) // = 'top' w( "myUrl.host = " + myURL.host) // = 'abc.com' w( "myUrl.query = " + myURL.query) // = '?id=255&m=hello' w( "myUrl.params = " + myURL.params) // = Object = { id: 255, m: hello } w( "myUrl.path = " + myURL.path) // = '/dir/index.html' w( "myUrl.segments = " + myURL.segments) // = Array = ['dir', 'index.html'] w( "myUrl.port = " + myURL.port) // = '8080' w( "myUrl.protocol = " + myURL.protocol) // = 'http' w( "myUrl.source = " + myURL.source) // = 'http://abc.com:8080/dir/index.html?id=255&m=hello#top' var _newUrl = replaceUrlParams(myURL, { id: 101, m: "World" , page: 1, "page" :2 }); w( "<br>新url为:" ) w(_newUrl); //http://abc.com:8080/dir/index.html?id=101&m=World&page=2#top |
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