以前的是5.1版本写的。

现在改成5.6版本。

其中遇到的问题，我会在这个laravel专题中一一指出。

第一个问题是路由时

Route::controller不再支持。

于是，我只好弄成Route:get之类的语法来解决。

第二个问题是中间件如何生效。

写middleware时，不能直接返回view了。。要用response.

return response()->view('user');

protected $routeMiddleware = [
        'auth' => \Illuminate\Auth\Middleware\Authenticate::class,
        'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
        'bindings' => \Illuminate\Routing\Middleware\SubstituteBindings::class,
        'cache.headers' => \Illuminate\Http\Middleware\SetCacheHeaders::class,
        'can' => \Illuminate\Auth\Middleware\Authorize::class,
        'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
        'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
        'middleware.xxx' => \App\Http\Middleware\XXXMiddleware::class,
    ];

Route::get('/xxx','xxxController@getIndex')->middleware('middleware.xxx')->name('user.xxx');

    public function __construct(){  
            $this->middleware('middleware.xxx');    
        }