## 创建core/RouteCollection.php ```` <?php namespace core; use core\request\RequestInterface; Class RouteCollection { protected $routes = []; // 所有路由存放 protected $route_index = 0; // 当前访问的路由 public function getRoutes() // 获取所有路由 { return $this->routes; } public $currGroup = []; // 当前组 public function group($attributes = [],\Closure $callback) { $this->currGroup[] = $attributes; call_user_func($callback,$this); // $callback($this); 跟这个一样的效果 // group的实现主要的这个$this 这个$this将当前状态传递到了闭包 array_pop($this->currGroup); } // 增加/ 如: GETUSER 改成 GET/USER protected function addSlash(& $uri) { return $uri[0] == '/' ? : $uri = '/'.$uri; } // 增加路由 public function addRoute($method,$uri,$uses) { $prefix = ''; // 前缀 $middleware = []; // 中间件 $namespace = ''; // 命名空间 $this->addSlash($uri); foreach ($this->currGroup as $group){ $prefix .= $group['prefix'] ?? false; if( $prefix) // 如果有前缀 $this->addSlash($prefix); $middleware = $group['middleware'] ?? []; // 合并组中间件 $namespace .= $group['namespace'] ?? ''; // 拼接组的命名空间 } $method = strtoupper($method); // 请求方式 转大写 $uri = $prefix .$uri; $this->route_index = $method . $uri; // 路由索引 $this->routes[$this->route_index] = [ // 路由存储结构 用 GET/USER 这种方式做索引 一次性就找到了 'method' => $method, // 请求类型 'uri' => $uri, // 请求url 'action' => [ 'uses' => $uses, 'middleware' => $middleware, 'namespace' => $namespace ] ]; } public function get($uri,$uses) { $this->addRoute('get',$uri,$uses); return $this; } public function post($uri,$uses) { $this->addRoute('post',$uri,$uses); return $this; } public function put($uri,$uess){} // 略写 ... public function delete($uri,$uses){} public function middleware($class) { $this->routes[$this->route_index]['action']['middleware'][] = $class; return $this; } // 获取当前访问的路由 public function getCurrRoute() { $routes = $this->getRoutes(); $route_index = $this->route_index; if( isset( $routes[ $route_index])) return $routes[ $route_index]; $route_index .= '/'; if( isset( $routes[ $route_index])) return $routes[ $route_index]; return false; } // 更具request执行路由 public function dispatch(RequestInterface $request) { $method = $request->getMethod(); $uri = $request->getUri(); $this->route_index = $method . $uri; $route = $this->getCurrRoute(); if(! $route) // 找不到路由 return 404; $routerDispatch = $route['action']['uses']; return $routerDispatch(); } } ```` ## 绑定路由 编辑 `app.php`  ## 加载路由文件 编辑 `app.php` 的 `boot`方法 ``` App::getContainer()->get('router')->group([ 'namespace' => 'App\\controller' ], function ($router){ require_once FRAME_BASE_PATH . '/routes/web.php'; // 因为是require 所以web.php有$router这个变量 }); App::getContainer()->get('router')->group([ 'namespace' => 'App\\controller', 'prefix' => 'api' ], function ($router){ require_once FRAME_BASE_PATH . '/routes/api.php'; }); ```  ## 创建routes/web.php和routes/api.php 编辑 `routes/web.php`:  ## 编辑index.php  ``` App::getContainer()->get('response')->setContent( App::getContainer()->get('router')->dispatch( App::getContainer()->get(\core\request\RequestInterface::class) ) )->send(); ``` ## 运行