我想创建简单的登录系统，并且我制作了一个登录系统，但它说登录详细信息错误。我尝试做转储测试返回 null。请参阅评论中的 dd 测试。由于这个原因也无法注销

我的登录控制器是：

validate($request, [
            'email'   => 'required|email',
            'password'  => 'required|alphaNum|min:3'
                ]);

        $user_data = array(
            'email' => $request->get('email'),
            'password' => $request->get('password')
        );
        
        //$user = Auth::user();
        //dd($user);              I have done dump test but it is returning null
        
        if(Auth::attempt($user_data))
        {
            return redirect()->route('welcome');
        }
        else
        {
            return back()->with('error','wrong Login Details');
        }
    } 
}

我的登录刀片是

@if ($message = Session::get('error'))
                

                    ×
                        {{ $message }}
                
          @endif
           @if (count($errors) > 0)
            

                    

                            @foreach($errors->all() as $error)
                                
{{ $error }}
                            @endforeach
                    
            
           @endif
      
    

                {{ csrf_field() }}
        

            
Login
            
Please fill in this form to Login
            

            Email
            
                @error('email')
                  {{$message}}
                @enderror  

            Password
            
                @error('password')
                  {{$message}}
                @enderror  

            Repeat Password
            
            

                Log in
            
        
    

网络路由是

Route::get('/register','App\Http\Controllers\RegisterController@index')->name('register');
Route::post('/register/save','App\Http\Controllers\RegisterController@store')->name('register.save');
Route::get('/login','App\Http\Controllers\LoginController@index')->name('login');
Route::post('/login/save','App\Http\Controllers\LoginController@store')->name('login.save');
Route::get('/welcome','App\Http\Controllers\LogoutController@store')->name('logout');