我有一个laravel项目，我需要使用multi-auth，所以我通过添加'u_'前缀更改了users表的列名 . 对于寄存器来说，这一切都很好，但每当我尝试登录时，没有任何反应，我会被重定向回/登录而没有错误或任何事情 . 这是我的

login.blade.php

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <div class="panel panel-default">
                <div class="panel-heading">Login</div>

                <div class="panel-body">
                    <form class="form-horizontal" method="POST" action="{{ route('login') }}">
                        {{ csrf_field() }}

                        <div class="form-group{{ $errors->has('email') ? ' has-error' : '' }}">
                            <label for="email" class="col-md-4 control-label">E-Mail Address</label>

                            <div class="col-md-6">
                                <input id="email" type="email" class="form-control" name="email" value="{{ old('email') }}" required autofocus>

                                @if ($errors->has('email'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('email') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group{{ $errors->has('password') ? ' has-error' : '' }}">
                            <label for="password" class="col-md-4 control-label">Password</label>

                            <div class="col-md-6">
                                <input id="password" type="password" class="form-control" name="password" required>

                                @if ($errors->has('password'))
                                    <span class="help-block">
                                        <strong>{{ $errors->first('password') }}</strong>
                                    </span>
                                @endif
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-6 col-md-offset-4">
                                <div class="checkbox">
                                    <label>
                                        <input type="checkbox" name="remember" {{ old('remember') ? 'checked' : '' }}> Remember Me
                                    </label>
                                </div>
                            </div>
                        </div>

                        <div class="form-group">
                            <div class="col-md-8 col-md-offset-4">
                                <button type="submit" class="btn btn-primary">
                                    Login
                                </button>

                                <a class="btn btn-link" href="{{ route('password.request') }}">
                                    Forgot Your Password?
                                </a>
                            </div>
                        </div>
                    </form>
                </div>
            </div>
        </div>
    </div>
</div>
@endsection

User.php模型

<?php

namespace App;

use Illuminate\Notifications\Notifiable;
use Illuminate\Foundation\Auth\User as Authenticatable;

class User extends Authenticatable
{
    use Notifiable;
    protected $primaryKey = "uid";

    /**
     * The attributes that are mass assignable.
     *
     * @var array
     */
    protected $fillable = [
        'u_username','u_password','u_email','u_first_name','u_last_name','u_country','u_status','u_type',
    ];

    /**
     * The attributes that should be hidden for arrays.
     *
     * @var array
     */
    protected $hidden = [
        'password', 'remember_token',
    ];
}

和

loginController.php

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;

class LoginController extends Controller
{
    /*
    |--------------------------------------------------------------------------
    | Login Controller
    |--------------------------------------------------------------------------
    |
    | This controller handles authenticating users for the application and
    | redirecting them to your home screen. The controller uses a trait
    | to conveniently provide its functionality to your applications.
    |
    */

    use AuthenticatesUsers;

    /**
     * Where to redirect users after login.
     *
     * @var string
     */
    protected $redirectTo = '/home';

    public function username()
    {
        return 'u_email';
    }
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct()
    {
        $this->middleware('guest')->except('logout');
    }
}

看起来login.blade.php并不关心我是否更改了 function username() return value ，除了上面的可填充数组之外，我还没有真正改变任何东西 .