<?php
//核心启动类
class Framework{
//让项目启动起来
public static function run(){
//echo "running...";
self::init();
self::autoload();
self::router();
}

//初始化方法
public static function init(){
//定义路径,获取当前工作路径 getcwd()
define("DS", DIRECTORY_SEPARATOR);
define("ROOT", getcwd() . DS); //项目根目录
define("APP_PATH", ROOT . "application" . DS);
define("FRAMEWORK_PATH", ROOT . "framework" .DS);
define("PUBLIC_PATH", ROOT . "public" . DS);
define("MODEL_PATH", APP_PATH . "models" . DS);
define("VIEW_PATH", APP_PATH . "views" . DS);
define("CONTROLLER_PATH", APP_PATH . "controllers" .DS);
define("CONFIG_PATH", APP_PATH . "config" .DS);
define("CORE_PATH", FRAMEWORK_PATH . "core" .DS);
define("DB_PATH", FRAMEWORK_PATH . "database" . DS);
define("HELPER_PATH", FRAMEWORK_PATH . "helpers" . DS);
define("LIB_PATH", FRAMEWORK_PATH . "libraries" .DS);
//前后台的控制器和视图目录怎么定义呢？，解析url中的参数，可以确定具体的路径
define("PLATFORM", isset($_REQUEST[‘p‘]) ? $_REQUEST[‘p‘] :"home");
define("CONTROLLER", isset($_REQUEST[‘c‘]) ? ucfirst($_REQUEST[‘c‘]) :"Index");
define("ACTION", isset($_REQUEST[‘a‘]) ? $_REQUEST[‘a‘] :"index");
define("CUR_CONTROLLER_PATH", CONTROLLER_PATH . PLATFORM . DS);
define("CUR_VIEW_PATH", VIEW_PATH . PLATFORM . DS);

define("UPLOAD_PATH", PUBLIC_PATH . "uploads" . DS);
//手动载入核心类
require CORE_PATH . "Controller.class.php";
require CORE_PATH . "Model.class.php";
require DB_PATH . "Mysql.class.php";
$GLOBALS[‘config‘] = include CONFIG_PATH . "config.php";

//开启session
session_start();
}

//路由方法
public static function router(){
//确定类名和方法名
$controller_name = CONTROLLER . "Controller"; //如GoodsController
$action_name = ACTION . "Action"; //如addAction
//实例化控制器，然后调用相应的方法
$controller = new $controller_name;
$controller->$action_name();
}

//注册加载方法
public static function autoload(){
spl_autoload_register(array(__CLASS__,"load"));
}

//加载方法
public static function load($classname){
//只负责加载 application下面的 控制器类和模型类，如GoodsController，AdminModel
if (substr($classname, -10) == ‘Controller‘){
require CUR_CONTROLLER_PATH . "{$classname}.class.php";
} elseif (substr($classname, -5) == "Model"){
require MODEL_PATH . "{$classname}.class.php";
} else {
//其它情况，暂无
}

}
}

mvc-Framework.class.php