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php mvc中controller类实例教程

WBOY
Release: 2016-05-25 16:46:49
Original
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本文章来讲述一下关于mvc中controller类教程,通过上两节我们知道 程序通过单一入口文件的route类决定了 唯一的moudle, conttoller, action,并在最后执行了

实例代码如下:

<?php
$route->run();
/** 
 * 执行相应的 MCA
 *
 */
private function run() {
    $filePath = APPLICATION_PATH . &#39;/controller/&#39; . $this->_moudle . &#39;/&#39; . $this->_conttoller . &#39;.inc.php&#39;;
    $isNo = 0;
    if (file_exists($filePath)) {
        include "$filePath";
        $controller_tp = $this->_conttoller . &#39;Controller&#39;;
        $controller = new $controller_tp;
        if (method_exists($controller, $this->_action . &#39;Action&#39;)) {
            $acion_tmp = $this->_action . &#39;Action&#39;;
            $controller->$acion_tmp();
        } else {
            $isNo = 1;
        }
    } else {
        $isNo = 1;
    }
    if ($isNo) {
        $filePath = APPLICATION_PATH . &#39;/controller/default/index.inc.php&#39;;
        $this->_moudle = $this->_default[&#39;module&#39;];
        $this->_conttoller = $this->_default[&#39;conttoller&#39;];
        $this->_action = $this->_default[&#39;action&#39;];
        ($this->_moudle != $this->_default[&#39;module&#39;]) && include "$filePath";
        $controller = new indexController;
        $controller->indexAction();
    }
}
?>
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当相关'Controller'文件存在时执行

实例代码如下:

include "$filePath";

$controller_tp = $this->_conttoller.'Controller';

$controller = new $controller_tp;

上述三行代码的意思是,根据确定好的 conttoller 包含相应文件,并实例化相应的conttoller.

实例代码如下:

$acion_tmp = $this->_action.'Action';

$controller->$acion_tmp();

根据相应的Action 执行相应的action

所有的 Controller 类都集成一个公用的Controller 类,本节课我们就来分析一下公共的Controller 类

<?php
/** 
 * 前台公共类 接口
 * 实现公共部分代码
 */
/** 
 * 本文件只能被index.php包含
 */
defined("WEB_AUTH") || die("NO_AUTH");
/** 
 * 包含菜单配置文件
 */
    class Controller {
        public $tpl;
        public $controller;
        public $body; //右边菜单
        public $_route;
        public $html_;
        public $tpl_;
        /*
         * 构造函数
        */
        public function __construct() {
            $this->init();
        }
        /*
         * 初始化变量,顶部菜单和模板
        */
        protected function init() {
            global $TPL, $route;
            $this->tpl = $TPL;
            $this->_route = $route;
        }
        /** 
         * 模板变量传第
         */
        protected function diplayTpl() {
            $this->body || $this->body = $this->_route->getActionName();
            $this->tpl->assign("body", $this->body);
            /*设置本控制器的模板目录*/
            $this->controller || $this->controller = $this->_route->getControllerName();
            $this->tpl->assign("controller", $this->controller);
            $this->tpl->display($this->layout);
        }
        /** 
         * smarty封装类
         * @param string $name
         * @param string $value
         */
        public function assign($name, $value) {
            $this->tpl->assign($name, $value);
        }
        /** 
         * 显示另外的模板
         * @param string $name
         * @param string $value
         */
        protected function displayOther($file) {
            $this->assign("otherTpl", TRUE);
            $this->tpl->display($file);
        }
        /** 
         * 显示某个MCA的body模板
         * 0=>m 1=>c =>a
         */
        protected function getMcaBody($array) {
            return &#39;http://www.cnblogs.com/../&#39; . $array[0] . &#39;/body/&#39; . $array[1] . &#39;/&#39; . $array[2];
        }
        /*
         * 析构函数,显示页面
        */
        protected function __destruct() {
            $this->tpl->_tpl_vars[&#39;otherTpl&#39;] || $this->diplayTpl();
        }
        /** 
         * 中途退出
         */
        protected function _exit($msg = "") {
            $this->assign("otherTpl", TRUE);
            die($msg);
        }
        /** 
         * 用 $this->html_var=value放法给变量赋值
         * 用 $this->tpl_var=value放法给变量赋值
         */
        protected function __set($name, $value) {
            if (strtolower(substr($name, 0, 5)) == "html_" || strtolower(substr($name, 0, 4)) == "tpl_") {
                $this->assign(substr($name, 5) , $value);
            }
        }
    }
?>
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实例代码如下:

protected function __destruct()

{

$this->tpl->_tpl_vars['otherTpl'] || $this->diplayTpl();

}

这是所有Controller 类 生命周期结束时候要执行的函数(搜索一下php魔术方法 查看详情)

本框架利用这时候解析模板,这样的好处是,当Controller中相关执行完相关数据处理,后自动执行相关的模板(View);而不用每次在程序最后调用模板

实例代码如下:

    protected function __set($name, $value) {
        if (strtolower(substr($name, 0, 5)) == "html_" || strtolower(substr($name, 0, 4)) == "tpl_") {
            $this->assign(substr($name, 5) , $value);
        }
    }
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这个函数简化了程序向模板传递变量的方法,以smarty为例,在程序中需要执行 $tpl->assign('key',$value);

来向模板中注册变量,而此函数中简化了此方法 ,只需 $this->html_key=$value;来实现相同的作用.(利用开发环境的提示功能,在前面声明

实例代码如下:

public $html_; 

public $tpl_; 

  


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