phpMVC框架的核心启动类定义

<?php
//核心启动类
class Framework {
//定义一个run方法
public static function run(){
// echo "hello,wrold!";
self::init();
self::autoload();
self::dispatch();
}

//初始化方法
private static function init(){
//定义路径常量
define("DS", DIRECTORY_SEPARATOR);
define("ROOT", getcwd() . DS ); //根目录
define("APP_PATH", ROOT . 'application' . DS);
define("FRAMEWORK_PATH", ROOT . "framework" .DS);
define("PUBLIC_PATH", ROOT . "public" .DS);
define("CONFIG_PATH", APP_PATH . "config" .DS);
define("CONTROLLER_PATH", APP_PATH . "controllers" .DS);
define("MODEL_PATH", APP_PATH . "models" .DS);
define("VIEW_PATH", APP_PATH . "views" .DS);
define("CORE_PATH", FRAMEWORK_PATH . "core" .DS);
define("DB_PATH", FRAMEWORK_PATH . "databases" .DS);
define("LIB_PATH", FRAMEWORK_PATH . "libraries" .DS);
define("HELPER_PATH", FRAMEWORK_PATH . "helpers" .DS);
define("UPLOAD_PATH", PUBLIC_PATH . "uploads" .DS);
//获取参数p、c、a,index.php?p=admin&c=goods&a=add GoodsController中的addAction
define('PLATFORM',isset($_GET['p']) ? $_GET['p'] : "admin");
define('CONTROLLER',isset($_GET['c']) ? ucfirst($_GET['c']) : "Index");
define('ACTION',isset($_GET['a']) ? $_GET['a'] : "index");
//设置当前控制器和视图目录 CUR-- current
define("CUR_CONTROLLER_PATH", CONTROLLER_PATH . PLATFORM . DS);
define("CUR_VIEW_PATH", VIEW_PATH . PLATFORM . DS);

//载入配置文件
$GLOBALS['config'] = include CONFIG_PATH . "config.php";

//载入核心类
include CORE_PATH . "Controller.class.php";
include CORE_PATH . "Model.class.php";
include DB_PATH . "Mysql.class.php";
}

//路由方法,说白了，就是实例化对象并调用方法
//index.php?p=admin&c=goods&a=add GoodsController中的addAction
private static function dispatch(){
//获取控制器名称
$controller_name = CONTROLLER . "Controller";
//获取方法名
$action_name = ACTION . "Action";
//实例化控制器对象
$controller = new $controller_name();
//调用方法
$controller->$action_name();
}

//注册为自动加载
private static function autoload(){
// $arr = array(__CLASS__,'load');
spl_autoload_register('self::load');
}

//自动加载功能,此处我们只实现控制器和数据库模型的自动加载
//如GoodsController、 GoodsModel
private static function load($classname){
if (substr($classname, -10) == 'Controller') {
//载入控制器
include CUR_CONTROLLER_PATH . "{$classname}.class.php";
} elseif (substr($classname, -5) == 'Model') {
//载入数据库模型
include MODEL_PATH . "{$classname}.class.php";
} else {
//暂略
}
}

}