后盾网lavarel视频项目---lavarel中间件（使用中间件拦截没登录的用户）

后盾网lavarel视频项目---lavarel中间件（使用中间件拦截没登录的用户）

一、总结

一句话总结：

1、中间件中验证用户是否登录：if(!Auth::guard('admin')->check()){

2、注册中间件（在kernel的路由中间件中注册）：protected $routeMiddleware = ['admin.auth'=>AdminMiddleware::class,

3、控制器中使用中间件（控制器的构造方法中）：$this->middleware('admin.auth')->except(['login','loginCheck']);

1、中间件中的逻辑怎么写？

逻辑就是用户没登录跳转到哪里：和tp中的一样，这里是用的auth判断用户是否登录

public function handle($request, Closure $next)
{
  if(!Auth::guard('admin')->check()){
      return redirect('/admin/login');
  }
  return $next($request);
}

2、中间件在哪里注册？

在kernel（app/Http/Kernel.php）的路由中间件（protected $routeMiddleware）中注册

    protected $routeMiddleware = [
        'admin.auth'=>AdminMiddleware::class,
        'auth' => AppHttpMiddlewareAuthenticate::class,
        'auth.basic' => IlluminateAuthMiddlewareAuthenticateWithBasicAuth::class,
        'bindings' => IlluminateRoutingMiddlewareSubstituteBindings::class,
        'cache.headers' => IlluminateHttpMiddlewareSetCacheHeaders::class,
        'can' => IlluminateAuthMiddlewareAuthorize::class,
        'guest' => AppHttpMiddlewareRedirectIfAuthenticated::class,
        'signed' => IlluminateRoutingMiddlewareValidateSignature::class,
        'throttle' => IlluminateRoutingMiddlewareThrottleRequests::class,
        'verified' => IlluminateAuthMiddlewareEnsureEmailIsVerified::class,
    ];

3、中间件在哪里使用？

控制器的构造方法中：public function __construct()

public function __construct()
{
  //排除'login'和'loginCheck'方法，进行中间件的验证
  $this->middleware('admin.auth')->except(['login','loginCheck']);
}

二、lavarel中间件（使用中间件拦截没登录的用户）

1、创建中间件

D:softwarecodingphpphpstudyPHPTutorialWWWlegend3legend3>php artisan make:middleware AdminMiddleware
Middleware created successfully.

app/Http/Middleware/AdminMiddleware.php 创建成功

 

2、中间件中验证用户是否登录

<?php

namespace AppHttpMiddleware;

use Closure;
use Auth;

class AdminMiddleware
{

    public function handle($request, Closure $next)
    {
        if(!Auth::guard('admin')->check()){
            return redirect('/admin/login');
        }
        return $next($request);
    }
}

第6行和第13行，用的是auth用户认证

13-15逻辑：如果没登录，就跳转了后台登录页面

3、注册中间件（在kernel的路由中间件中注册）

kernel路径：app/Http/Kernel.php

也就是把这个中间件插在路由这个拦截节点上

    protected $routeMiddleware = [
        'admin.auth'=>AdminMiddleware::class,
        'auth' => AppHttpMiddlewareAuthenticate::class,
        'auth.basic' => IlluminateAuthMiddlewareAuthenticateWithBasicAuth::class,
        'bindings' => IlluminateRoutingMiddlewareSubstituteBindings::class,
        'cache.headers' => IlluminateHttpMiddlewareSetCacheHeaders::class,
        'can' => IlluminateAuthMiddlewareAuthorize::class,
        'guest' => AppHttpMiddlewareRedirectIfAuthenticated::class,
        'signed' => IlluminateRoutingMiddlewareValidateSignature::class,
        'throttle' => IlluminateRoutingMiddlewareThrottleRequests::class,
        'verified' => IlluminateAuthMiddlewareEnsureEmailIsVerified::class,
    ];

'admin.auth'表示是这个中间件的表示符，也就是名字

4、控制器中使用中间件

控制器路径：app/Http/Controllers/Admin/EntryController.php

class EntryController extends Controller
{
    public function __construct()
    {
        //排除'login'和'loginCheck'方法，进行中间件的验证
        $this->middleware('admin.auth')->except(['login','loginCheck']);
    }

在构造方法中使用，可以保证执行在每个方法之前

需要排除掉login和loginCheck方法，因为这两个方法是显示登录界面和进行登录判断的方法