前言
本文主要介绍了关于Laravel 5.5基于内置的Auth模块实现前后台登陆的相关内容，更多关于Auth模块的内容大家可以参考这篇文章：https://www.jb51.net/article/121401.htm
下面话不多说了，来一起看看详细的介绍吧。
方法如下：
步骤1：生成Auth
在项目建立完成后，生成内置Auth组件：
php artisan make:auth步骤2：添加guard
打开config\auth.php,为方便前后台用户切换，项目共用Users表
'guards' => [
//...
'admin' => [
'driver' => 'session',
'provider' => 'users',
],
//...
],步骤3：实现基类
class AdminController extends BaseController
{
use AuthorizesRequests, DispatchesJobs, ValidatesRequests;
public function __construct()
{
$this->middleware('auth:admin');
}
}步骤4：实现后台登陆控制器
新建appcontrollersAdminLoginController.php
<?php
namespace App\Http\Controllers\Admin;
use App\Http\Controllers\Controller;
use Illuminate\Support\Facades\Auth;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Illuminate\Http\Request;
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 = '/admin';
/**
* Create a new controller instance.
*
* @return void
*/
public function __construct()
{
$this->middleware('guest:admin')->except('logout');
}
/**
* 重写登陆页面
* @return \Illuminate\Contracts\View\Factory|\Illuminate\View\View
*/
public function showLoginForm()
{
return view('backend.login');
}
/**
* 重写退出方法
* @param Request $request
* @return \Illuminate\Http\RedirectResponse|\Illuminate\Routing\Redirector
*/
public function logout(Request $request)
{
$this->guard()->logout();
$request->session()->flush();
$request->session()->regenerate();
return redirect('/admin/login');
}
/**
* 重写guard认证
* @return mixed
*/
protected function guard()
{
return Auth::guard('admin');
}
}步骤5：实现登陆后跳转到不同路径
app\Middleware\RedirectIfAuthenticated.php
public function handle($request, Closure $next, $guard = null)
{
if (Auth::guard($guard)->check()) {
$path = $guard ? '/admin' : '/home';
return redirect($path);
}
return $next($request);
}步骤6：实现未通过认证跳转不同登陆页
app\Exceptions\Handler.php
/**
* 重写实现未认证用户跳转至相应登陆页
* @param \Illuminate\Http\Request $request
* @param AuthenticationException $exception
* @return \Illuminate\Http\JsonResponse|\Illuminate\Http\RedirectResponse
*/
protected function unauthenticated($request, AuthenticationException $exception)
{
if($request->expectsJson()){
return response()->json(['message' => $exception->getMessage()], 401);
}else{
return in_array('admin', $exception->guards()) ? return redirect()->guest('/admin/login') : redirect()->guest('login');
}
}完成
总结
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