使用Minify在服务器端合并js/css
Minify 用于服务器端的JavaScript 和 CSS的合并压缩。
1. 首先从 Google code下载 Minify
http://code.google.com/p/minify/wiki/UserGuide
2. 上传至网站根目录下，当然，也可以你所指定的位置，但是需要注意的是需要修改Minify。
3. 修改Nginx配置，可以参见我前面的文章：
Minify在Nginx上的rewrite配置
P.S. 添加重定向目的在于合并压缩后的js和css代码路径不携带?
4. 修改Minify配置文件
<?php
/**
* Configuration for default Minify application
* @package Minify
*/
/**
* In 'debug' mode, Minify can combine fileswith no minification and
* add comments to indicate line #s of theoriginal files.
*
* To allow debugging, set this option to trueand add "&debug=1" to
* a URI. E.g./min/?f=script1.js,script2.js&debug=1
*/
$min_allowDebugFlag= false;
/**
* Set to true to log messages to FirePHP(Firefox Firebug addon).
* Set to false for no error logging (Minifymay be slightly faster).
* @link http://www.firephp.org/
*
* If you want to use a custom error logger,set this to your logger
* instance. Your object should have a methodlog(string $message).
*
* @todo cache system does not have errorlogging yet.
*/
$min_errorLogger =false;
/**
* Allow use of the Minify URI Builder app. Ifyou no longer need
* this, set to false.
**/
$min_enableBuilder =true;
/**
* For best performance, specify your tempdirectory here. Otherwise Minify
* will have to load extra code to guess. Someexamples below:
*/
//$min_cachePath ='c:\\WINDOWS\\Temp';
$min_cachePath= '/tmp';
//$min_cachePath =preg_replace('/^\\d+;/', '', session_save_path());
/**
* Leave an empty string to use PHP's$_SERVER['DOCUMENT_ROOT'].
*
* On some servers, this value may bemisconfigured or missing. If so, set this
* to your full document root path with notrailing slash.
* E.g. '/home/accountname/public_html' or'c:\\xampp\\htdocs'
*
* If /min/ is directly inside your documentroot, just uncomment the
* second line. The third line might work onsome Apache servers.
*/
$min_documentRoot= '';
//$min_documentRoot =substr(__FILE__, 0, strlen(__FILE__) - 15);
//$min_documentRoot =$_SERVER['SUBDOMAIN_DOCUMENT_ROOT'];
//$min_documentRoot ='/var/www/cychai/Cache/';
/**
* Cache file locking. Set to false iffilesystem is NFS. On at least one
* NFS system flock-ing attempts stalled PHPfor 30 seconds!
*/
$min_cacheFileLocking= true;
/**
* Combining multiple CSS files can place@import declarations after rules, which
* is invalid. Minify will attempt to detectwhen this happens and place a
* warning comment at the top of the CSSoutput. To resolve this you can either
* move the @imports within your CSS files, orenable this option, which will
* move all @imports to the top of the output.Note that moving @imports could
* affect CSS values (which is why this optionis disabled by default).
*/
$min_serveOptions['bubbleCssImports']= false;
/**
* Maximum age of browser cache in seconds.After this period, the browser
* will send another conditional GET. Use alonger period for lower traffic
* but you may want to shorten this beforemaking changes if it's crucial
* those changes are seen immediately.
*
* Note: Despite this setting, if you include anumber at the end of the
* querystring, maxAge will be set to one year.E.g. /min/f=hello.css&123456
*/
$min_serveOptions['maxAge']= 315360000;
/**
* If you'd like to restrict the "f"option to files within/below
* particular directories below DOCUMENT_ROOT,set this here.
* You will still need to include the directoryin the
* f or b GET parameters.
*
* // = shortcut for DOCUMENT_ROOT
*/
//$min_serveOptions['minApp']['allowDirs']= array('//js', '//css');
/**
* Set to true to disable the "f" GETparameter for specifying files.
* Only the "g" parameter will beconsidered.
*/
$min_serveOptions['minApp']['groupsOnly']= false;
/**
* Maximum # of files that can be specified inthe "f" GET parameter
*/
$min_serveOptions['minApp']['maxFiles']= 50;
/**
* If you minify CSS files stored in symlink-eddirectories, the URI rewriting
* algorithm can fail. To prevent this, providean array of link paths to
* target paths, where the link paths arewithin the document root.
*
* Because paths need to be normalized for thisto work, use "//" to substitute
* the doc root in the link paths (the arraykeys). E.g.:
* <code>
* array('//symlink' => '/real/target/path')// unix
* array('//static' =>'D:\\staticStorage') // Windows
* </code>
*/
$min_symlinks =array();
/**
* If you upload files from Windows to anon-Windows server, Windows may report
* incorrect mtimes for the files. This maycause Minify to keep serving stale
* cache files when source file changes aremade too frequently (e.g. more than
* once an hour).
*
* Immediately after modifying and uploading afile, use the touch command to
* update the mtime on the server. If the mtimejumps ahead by a number of hours,
* set this variable to that number. If themtime moves back, this should not be
* needed.
*
* In the Windows SFTP client WinSCP, there'san option that may fix this
* issue without changing the variable below.Under login > environment,
* select the option "Adjust remotetimestamp with DST".
* @linkhttp://winscp.net/eng/docs/ui_login_environment#daylight_saving_time
*/
$min_uploaderHoursBehind= 0;
/**
* Path to Minify's lib folder. If you happento move it, change
* this accordingly.
*/
$min_libPath =dirname(__FILE__) . '/lib';
// try to disableoutput_compression (may not have an effect)
ini_set('zlib.output_compression','0');
5. 重启Nginx服务。
6. 使用Minify其它页面的JavaScript文件，src地址格式为 /min/f=js/[javascript文件名]
如：
<scripttype="text/javascript" src="/min/f=js/common.js"></script>
对于合并多个JavaScript文件，可以通过Minify服务进行合并：
开发环境访问地址：
http://localhost/min/builder/
填写需要合并的JavaScript文件，Update后，会生成请求的URI地址，在相应页面引用即可。
参考：
在服务端合并和压缩JavaScript和CSS文件
Minify优化网站:合并多个CSS或者js文件
更多配置CookBook： http://code.google.com/p/minify/wiki/CookBook
关于《JS、CSS的合并、压缩、缓存管理》