一个做页面静态化的php类
<?phpnamespace Common;/* * * 功能：页面静态化的创建和删除 * 创建：当且仅当，一个页面需要被静态化并且还未静态化时。 * 删除：当且仅当，一个页面存在静态化页面并且需要被重新静态化时。 * * 作者：郭军周 * * 注 ：本类基于ThinkPHP3.2，或者其他具有“单一入口且MVC模式”的其他php框架。 * * 使用方式：在Controller的构造方法中获取其对象；在Controller的销毁方法里，用其对象的_static方法。 * 例：XXXController extends BaseController. * BaseController: * function __construct(){ * $this->__sh = StaticHtml::getInstance(); * } * function __destruct(){ * $this->__sh->_static(); * } * * */class StaticHtml{ private static $_instance = null; /* 单例模式，自身的引用 */ private $_needStatic = false; /* 是否需要将其静态化 */ private $_needDeleteStatic = false; /* 是否需要删除其静态化的页面 */ private $_hasStaticed = true; /* 是否存在其的静态化页面 */ private $_controller = null; /* 当前被访问的controller */ private $_action = null; /* 当前被访问的action */// private $_staticAgain = false; /* 删除静态文件后，是否马上重新更新【【注意】再次请求】 */ private $_save_path = null; /* 将要创建或者删除的静态文件的路径 */ private $_conf = array( /* 此文件定义一些静态文件的存放方式 */ 'files_per_directory' => 100 /* 此值不允许被修改，除非是要删除所有已经存在的静态文件，重新缓存 */ ); private $_staticList = array( /* 此数组，定义了需要创建静态化页面的Controller的action */// 'Base' => array( /* Base为controller name */// 'aaa' => array( /* aaa为action name */// 'save_path' => '/StaticHtml/Base/aaa/', /* save_path为生成的静态文件存放的根路径 */// 'static_base' => 'id', /* static_base为生成静态文件的“依据”。建议为对应数据库的primary_key */// 'alias' => 'aaa' /* 静态文件的名字，否则为1.html */// )// ) 'Mynotes' => array( 'look_notes' => array( 'save_path' => '/StaticHtml/Mynotes/look_notes/', 'static_base' => 'id', 'alias' => 'note' ), 'add_personal_notes' => array( 'save_path' => '/StaticHtml/Mynotes/', 'alias' => 'note-add' ) ), 'Resource' => array( 'allResource' => array( 'save_path' => '/StaticHtml/Resource/', 'alias' => 'allResource' ), 'resource_add' => array( 'save_path' => '/StaticHtml/Resource/', 'alias' => 'resourceAdd' ) ), 'Thing' => array( 'suggestion_of_lecture' => array( 'save_path' => '/StaticHtml/Lecture/', 'alias' => 'voteLecture' ) ), 'Passwordfix' => array( 'index' => array( 'save_path' => '/StaticHtml/Information/', 'alias' => 'updatePassword' ) ), 'Information' => array( 'index' => array( 'save_path' => '/StaticHtml/Information/', 'static_base' => 'user_id', 'alias' => 'information' ) ), 'Courseinfo' => array( 'course_show' => array( 'save_path' => '/StaticHtml/Information/', 'static_base' => 'user_id', 'alias' => 'course' ) ) ); private $_deleteList = array( /* 此数组，定义了需要删除某些静态化页面的Controller的action */// 'Base' => array( /* Base为controller name */// 'bbb' => array( /* bbb为action name */// 'save_path' => '/StaticHtml/Base/aaa/', /* save_path为要删除的静态文件存放的根路径 */// 'static_base' => 'id', /* static_base为确定静态文件路径的“依据”。建议为对应数据库的primary_key */// 'alias' => 'aaa' /* 静态文件的名字，否则为1.html */// )// ) 'Mynotes' => array( 'edits_notes' => array( 'save_path' => '/StaticHtml/Mynotes/look_notes/', 'static_base' => 'id', 'alias' => 'note' ) ), 'Information' => array( 'save_user_info' => array( 'save_path' => '/StaticHtml/Information/', 'static_base' => 'user_id', 'alias' => 'information' ) ), 'Courseinfo' => array( 'course_update' => array( 'save_path' => '/StaticHtml/Information/', 'static_base' => 'user_id', 'alias' => 'course' ) ) ); private function __construct(){ $this->needStatic(); /* 确定本次请求是否需要静态化 */ $this->hasStaticed(); /* 确定本次请求是否已经存在静态化页面 */ $this->needDeleteStatic(); /* 确定本次请求是否需要删除某些静态页面 */ } /* 确定需要删除的静态文件的存放路径 */ private function needDeleteStatic(){ if($this->_needDeleteStatic){ $save_path = $this->getSavePath($this->_deleteList[$this->_controller][$this->_action]); $this->_hasStaticed = false; if(file_exists(ROOT_PATH.$save_path)){ $this->_hasStaticed = true; }// $this->_staticAgain = $this->_deleteList[$this->_controller][$this->_action]['visitAgain']; $this->_save_path = ROOT_PATH.$save_path; } } /* 获取本类的，唯一的，实例化 */ public static function getInstance(){ if(!(self::$_instance instanceof self)){ self::$_instance = new self(); } return self::$_instance; } /* 判断是否存在其静态化的文件 */ private function hasStaticed(){ if($this->_needStatic){ $save_path = $this->getSavePath($this->_staticList[$this->_controller][$this->_action]); if(!file_exists(ROOT_PATH.$save_path)){ $this->_hasStaticed = false; ob_start(); }else{ header("location: http://".$_SERVER['HTTP_HOST'].dirname($_SERVER['SCRIPT_NAME']).$save_path); } $this->_save_path = ROOT_PATH.$save_path; } } /* 获取本次请求要生成或者删除的，静态化文件的路径 */ private function getSavePath($conf){ if(!isset($conf['static_base'])){ $save_path = $conf['save_path']; $save_path .= $conf['alias'].'.html'; }else{ if($conf['static_base'] == 'user_id'){ $id = (int)$_SESSION['logined_user']['id']; }else{ if(IS_GET){ $id = $_GET[$conf['static_base']]; }else{ $id = $_POST[$conf['static_base']]; } } $save_path = $conf['save_path']; $directory_id = ceil($id/$this->_conf['files_per_directory']); $save_path .= $directory_id.'/'; if($conf['alias']){ $fileName = $conf['alias'].'-'; } $fileName .= $id.'.html'; $save_path .= $fileName; } return $save_path; } /* 确定本次请求，是否需要生成静态化文件 */ private function needStatic(){ $url = explode('/',__ACTION__); $this->_controller = $url[4]; $this->_action = $url[5]; if(isset($this->_staticList[$this->_controller]) && isset($this->_staticList[$this->_controller][$this->_action])){ $this->_needStatic = true; } if(isset($this->_deleteList[$this->_controller]) && isset($this->_deleteList[$this->_controller][$this->_action])){ $this->_needDeleteStatic = true; } } /* 生成，或者删除，静态化文件 */ public function _static(){ if($this->_needStatic && !$this->_hasStaticed){ $html = ob_get_contents(); $this->_mkdir(dirname($this->_save_path)); file_put_contents($this->_save_path,$html); } if($this->_needDeleteStatic && $this->_hasStaticed){ unlink($this->_save_path); /*if($this->_staticAgain){ header("location: http://www.baidu.com");// header("location: http://".$_SERVER['HTTP_HOST'].'/'.$_SERVER['REQUEST_URI']); }*/ } } /* 创建目录 */ private function _mkdir($path){ if (!file_exists($path)){ $this->_mkdir(dirname($path)); mkdir($path, 0777); } }}?>
