Symfony的 标准发行版只支持一个站点，虽然可以通过路由系统中的 Host配置，根据不同的域名使用不同的路由规则，这样也可以实现类似多站点的功能，但缺点也非常明显：
symfony
- 如果希望某个Service在不同的站点有不同的表现，就没办法实现（DI不能直接注入Request）。
- 静态文件没办法很好拆分开来
- 每个页面请求都需要加载所有站点的配置（bundle、路由规则、Service等等），影响性能
经过搜索，发现也有人有相同的困惑，也给出了一个初步的 解决方案。但是还是有一些细节方面的问题，比如标准发行版自带的Composer post-install-cmd/post-update-cmd（清文件缓存、生成bootstrap.cache.php、发布静态文件到web根目录等）不能正常使用。那篇文章只是通过软链解决了bootstrap.cache.php的问题，但并没有提到清文件缓存等。
leo108's blog
这个问题只能自己写代码来解决了，新建一个composer项目，依赖于sensio/distribution-bundle，新建一个ScriptHandler类，代码如下：
http://leo108.com/pid-2202.asp
Magento是一套专业开源的PHP电子商务系统。Magento设计得非常灵活，具有模块化架构体系和丰富的功能。易于与第三方应用系统无缝集成。Magento开源网店系统的特点主要分以下几大类，网站管理促销和工具国际化支持SEO搜索引擎优化结账方式运输快递支付方式客户服务用户帐户目录管理目录浏览产品展示分析和报表Magento 1.6 主要包含以下新特性：•持久性购物 - 为不同的
namespace DreamoreDreamoreBundleComposer;use ComposerScriptCommandEvent;use SensioBundleDistributionBundleComposerScriptHandler as Base;class ScriptHandler extends Base{ /** * Composer variables are declared static so that an event could update * a composer.json and set new options, making them immediately available * to forthcoming listeners. */ protected static $options = array( 'dm-apps' => array(), 'dm-assets-install' => 'hard', 'dm-cache-warmup' => false, ); /** * Builds the bootstrap file. * * The bootstrap file contains PHP file that are always needed by the application. * It speeds up the application bootstrapping. * * @param $event CommandEvent A instance */ public static function buildBootstrap(CommandEvent $event) { $options = static::getOptions($event); foreach ($options['dm-apps'] as $config) { $bootstrapDir = $config['app-dir']; $autoloadDir = $config['autoload-dir']; if (!static::hasDirectory($event, 'app-dir', $bootstrapDir, 'build bootstrap file')) { return; } if (!static::hasDirectory($event, 'autoload-dir', $autoloadDir, 'build bootstrap file')) { return; } static::executeBuildBootstrap($event, $bootstrapDir, $autoloadDir, $options['process-timeout']); } } /** * Clears the Symfony cache. * * @param $event CommandEvent A instance */ public static function clearCache(CommandEvent $event) { $options = static::getOptions($event); foreach ($options['dm-apps'] as $config) { $consoleDir = $config['app-dir']; if (!static::hasDirectory($event, 'app-dir', $consoleDir, 'execute command')) { return; } $warmup = ''; if (!$options['dm-cache-warmup']) { $warmup = ' --no-warmup'; } static::executeCommand($event, $consoleDir, 'cache:clear'.$warmup, $options['process-timeout']); } } /** * Installs the assets under the web root directory. * * For better interoperability, assets are copied instead of symlinked by default. * * Even if symlinks work on Windows, this is only true on Windows Vista and later, * but then, only when running the console with admin rights or when disabling the * strict user permission checks (which can be done on Windows 7 but not on Windows * Vista). * * @param $event CommandEvent A instance */ public static function installAssets(CommandEvent $event) { $options = static::getOptions($event); foreach ($options['dm-apps'] as $config) { $needAssets = isset($config['need-assets']) ? $config['need-assets'] : true; if (!$needAssets) { continue; } $consoleDir = $config['app-dir']; if (!static::hasDirectory($event, 'app-dir', $consoleDir, 'execute command')) { return; } $webDir = $config['web-dir']; $symlink = ''; if ($options['dm-assets-install'] == 'symlink') { $symlink = '--symlink '; } elseif ($options['dm-assets-install'] == 'relative') { $symlink = '--symlink --relative '; } if (!static::hasDirectory($event, 'web-dir', $webDir, 'install assets')) { return; } static::executeCommand($event, $consoleDir, 'assets:install '.$symlink.escapeshellarg($webDir), $options['process-timeout']); } } protected static function getOptions(CommandEvent $event) { $options = array_merge(static::$options, $event->getComposer()->getPackage()->getExtra()); $options['process-timeout'] = $event->getComposer()->getConfig()->get('process-timeout'); return $options; }}这里就重写buildBootstrapclearCacheinstallAssets这三个方法的逻辑，同时为了避免冲突，我重新命名了配置项，composer.json的配置如下： symfony
"autoload": { "psr-4": { "": "src/" }, "files": [ "apps/api/ApiKernel.php", "apps/admin/AdminKernel.php", "apps/wap/WapKernel.php" ]},"scripts": { "post-install-cmd": [ "Dreamore\DreamoreBundle\Composer\ScriptHandler::buildBootstrap", "Dreamore\DreamoreBundle\Composer\ScriptHandler::clearCache", "Dreamore\DreamoreBundle\Composer\ScriptHandler::installAssets" ], "post-update-cmd": [ "Dreamore\DreamoreBundle\Composer\ScriptHandler::buildBootstrap", "Dreamore\DreamoreBundle\Composer\ScriptHandler::clearCache", "Dreamore\DreamoreBundle\Composer\ScriptHandler::installAssets" ]},"extra": { "dm-apps": [ { "app-dir": "apps/api", "autoload-dir": "apps", "need-assets": false }, { "app-dir": "apps/admin", "autoload-dir": "apps", "web-dir": "web/admin" }, { "app-dir": "apps/wap", "autoload-dir": "apps", "web-dir": "web/wap" } ], "dm-assets-install": "relative"}autoload中的file加入各个站点的kernel文件，这样就不需要手动require了。 leo108's blog
scripts替换成我们自己的ScriptHandler
推酷是个无耻的网站
dm-apps是一个数组，每个站点一项，每个站点的配置有app-dir、autoload-dir、web-dir、need-assets，app-dir代表kernel文件所在的目录；autoload-dir代表autoload.php文件所在的目录，由于各个站点的autoload.php完全一致，所以我就把这个文件放到apps目录下，所有站点共享（因此需要修改每个站点的app.php app_dev.php和console这3个文件）；web-dir代表发布静态文件的目标目录；need-assets代表是否需要发布静态文件（比如api这个站点就不需要发布静态文件）。
