我正在借助中间件创建登录应用程序。现在的问题是，当我运行应用程序时，出现错误消息：
类型错误：参数2传递给 Illuminate \ Auth \ SessionGuard :: __ construct（）必须实现接口 Illuminate \ Contracts \ Auth \ UserProvider，给定null，在 C：\ wamp64 \ www \ Login \ vendor \ laravel \ framework \ src \ Illuminate \ Auth \ AuthManager.php 在第123行
实际上，我想实施基于角色的检查，并为此使用了警卫 一种是简单用户，另一种是管理员。请帮助解决我的问题。
这是我完整的代码：
LoginController.php
namespace App\Http\Controllers;
use Auth;
use Illuminate\Http\Request;
class LoginController extends Controller {
//
public function getLogin() {
return view('login');
}
public function postLogin(Request $request) {
// Validate the form data
$this->validate($request, [
'email' => 'required|email',
'password' => 'required',
]);
// Attempt to log the user in
// Passwordnya pake bcrypt
if (Auth::guard('admin')->attempt(['email' => $request->email, 'password' => $request->password])) {
// if successful, then redirect to their intended location
return redirect()->intended('/admin');
} else if (Auth::guard('user')->attempt(['email' => $request->email, 'password' => $request->password])) {
return redirect()->intended('/user');
}
}
public function logout() {
if (Auth::guard('admin')->check()) {
Auth::guard('admin')->logout();
} elseif (Auth::guard('user')->check()) {
Auth::guard('user')->logout();
}
return redirect('/');
}
}
Controller.php
namespace App\Http\Controllers;
use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
class Controller extends BaseController
{
use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
}
型号：Admin.php
namespace App;
use Illuminate\Foundation\Auth\User as Authenticatable;
use Illuminate\Notifications\Notifiable;
class Admin extends Authenticatable {
use Notifiable;
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
}
User.php
namespace App;
use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;
class User extends Authenticatable
{
use Notifiable;
/**
* The attributes that are mass assignable.
*
* @var array
*/
protected $fillable = [
'name', 'email', 'password',
];
/**
* The attributes that should be hidden for arrays.
*
* @var array
*/
protected $hidden = [
'password', 'remember_token',
];
}
Config / auth.php
return [
/*
|--------------------------------------------------------------------------
| Authentication Defaults
|--------------------------------------------------------------------------
|
| This option controls the default authentication "guard" and password
| reset options for your application. You may change these defaults
| as required, but they're a perfect start for most applications.
|
*/
'defaults' => [
'guard' => 'web',
'passwords' => 'users',
],
/*
|--------------------------------------------------------------------------
| Authentication Guards
|--------------------------------------------------------------------------
|
| Next, you may define every authentication guard for your application.
| Of course, a great default configuration has been defined for you
| here which uses session storage and the Eloquent user provider.
|
| All authentication drivers have a user provider. This defines how the
| users are actually retrieved out of your database or other storage
| mechanisms used by this application to persist your user's data.
|
| Supported: "session", "token"
|
*/
'guards' => [
'web' => [
'driver' => 'session',
'provider' => 'users',
],
'api' => [
'driver' => 'token',
'provider' => 'users',
],
'admin' => [
'driver' => 'session',
'provider' => 'admin',
],
'admin-api' => [
'driver' => 'token',
'provider' => 'admin',
],
'user' => [
'driver' => 'session',
'provider' => 'user',
],
'user-api' => [
'driver' => 'token',
'provider' => 'user',
],
],
/*
|--------------------------------------------------------------------------
| User Providers
|--------------------------------------------------------------------------
|
| All authentication drivers have a user provider. This defines how the
| users are actually retrieved out of your database or other storage
| mechanisms used by this application to persist your user's data.
|
| If you have multiple user tables or models you may configure multiple
| sources which represent each model / table. These sources may then
| be assigned to any extra authentication guards you have defined.
|
| Supported: "database", "eloquent"
|
*/
'providers' => [
'users' => [
'driver' => 'eloquent',
'model' => App\User::class,
],
'admin' => [
'driver' => 'eloquent',
'model' => App\Admin::class,
],
// 'users' => [
// 'driver' => 'database',
// 'table' => 'users',
// ],
],
/*
|--------------------------------------------------------------------------
| Resetting Passwords
|--------------------------------------------------------------------------
|
| You may specify multiple password reset configurations if you have more
| than one user table or model in the application and you want to have
| separate password reset settings based on the specific user types.
|
| The expire time is the number of minutes that the reset token should be
| considered valid. This security feature keeps tokens short-lived so
| they have less time to be guessed. You may change this as needed.
|
*/
'passwords' => [
'users' => [
'provider' => 'users',
'table' => 'password_resets',
'expire' => 60,
],
],
];
routes.php
Route::get('/', function () {
return view('welcome');
});
// hanya untuk tamu yg belum auth
Route::get('/login', 'LoginController@getLogin')->middleware('guest');
Route::post('/login', 'LoginController@postLogin');
Route::get('/logout', 'LoginController@logout');;
Route::get('/admin', function() {
return view('admin');
})->middleware('auth:admin');
Route::get('/user', function() {
return view('user');
})->middleware('auth:user');
admin.blade.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<h2>Admin Page {{ Auth::guard('admin')->user()->name }}</h2>
<br>
<a href="/logout">Logout {{ Auth::guard('admin')->user()->name }} ??</a>
</body>
</html>
user.blade.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<h2>User Page.. halo {{Auth::guard('user')->user()->name}}</h2>
<br>
<a href="/logout">Logout {{ Auth::guard('user')->user()->name }} ??</a>
</body>
</html>
login.blade.php
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
</head>
<body>
<fieldset style="width:300px; margin:100px auto">
<legend>Form Login</legend>
<form action="/login" method="post">
{{ csrf_field() }}
<table>
<tr>
<td>Email</td>
<td>:</td>
<td><input type="text" name="email" id="email"></td>
</tr>
<tr>
<td>Password</td>
<td>:</td>
<td><input type="password" name="password" id="password"></td>
</tr>
</table>
<button type="submit">Login</button>
</form>
</fieldset>
</body>
</html>
redirectIfAuthenticated.php
namespace App\Http\Middleware;
use Closure;
use Illuminate\Support\Facades\Auth;
class RedirectIfAuthenticated
{
/**
* Handle an incoming request.
*
* @param \Illuminate\Http\Request $request
* @param \Closure $next
* @param string|null $guard
* @return mixed
*/
public function handle($request, Closure $next, $guard = null)
{
if (Auth::guard('admin')->check()) {
return redirect('/admin');
} else if (Auth::guard('user')->check()) {
return redirect('/user');
}
return $next($request);
}
}
Authenticate.php
namespace App\Http\Middleware;
use Illuminate\Auth\Middleware\Authenticate as Middleware;
use Illuminate\Support\Facades\Auth;
class Authenticate extends Middleware
{
/**
* Get the path the user should be redirected to when they are not authenticated.
*
* @param \Illuminate\Http\Request $request
* @return string
*/
protected function redirectTo($request)
{
if (Auth::guard('admin')->check()) {
return redirect('/admin');
} else if (Auth::guard('user')->check()) {
return redirect('/user');
}
}
}
App / Exceptions / Handler.php
namespace App\Exceptions;
use Illuminate\Auth\AuthenticationException;
use Exception;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
class Handler extends ExceptionHandler
{
/**
* A list of the exception types that are not reported.
*
* @var array
*/
protected $dontReport = [
//
];
/**
* A list of the inputs that are never flashed for validation exceptions.
*
* @var array
*/
protected $dontFlash = [
'password',
'password_confirmation',
];
/**
* Report or log an exception.
*
* @param \Exception $exception
* @return void
*/
public function report(Exception $exception)
{
parent::report($exception);
}
/**
* Render an exception into an HTTP response.
*
* @param \Illuminate\Http\Request $request
* @param \Exception $exception
* @return \Illuminate\Http\Response
*/
public function render($request, Exception $exception)
{
return parent::render($request, $exception);
}
protected function unauthenticated($request, \Illuminate\Auth\AuthenticationException $exception)
{
if($request->expectsJson()){
return response()->json(['error' => 'Unauthenticated.'], 401);
}
return redirect('/login');
}
}