Laravel 8 登录后重定向至仪表盘的策略与实践

<?php

namespace App\Http\Controllers\Auth;

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

class LoginController extends Controller
{
    use AuthenticatesUsers;

    /**
     * Where to redirect users after login.
     *
     * @var string
     */
    protected $redirectTo = '/dashboard'; // 或者 'dashboard' (如果路由名为dashboard)

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

<?php

namespace App\Providers;

use Illuminate\Support\Facades\Route;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;

class RouteServiceProvider extends ServiceProvider
{
    // ... 其他属性和方法

    public const HOME = '/';
    public const DASH = '/dashboard'; // 定义仪表盘常量

    // ... 其他方法
}

<?php

namespace App\Http\Middleware;

use Closure;
use App\Providers\RouteServiceProvider;
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, $guard = null)
    {
        if (Auth::guard($guard)->check()) {
            // 如果用户已登录，重定向到 RouteServiceProvider::DASH
            return redirect(RouteServiceProvider::DASH);
        }
        return $next($request);
    }
}

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use Illuminate\Foundation\Auth\AuthenticatesUsers;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Session; // 引入 Session Facade

class LoginController extends Controller
{
    use AuthenticatesUsers;

    protected $redirectTo = '/dashboard'; // 默认重定向，但会被自定义方法覆盖

    public function __construct()
    {
        $this->middleware('guest')->except('logout');
    }

    /**
     * 处理用户登录请求。
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\RedirectResponse
     */
    public function login(Request $request)
    {
        // 1. 验证请求数据
        $message = [
            'email.required'    =>  '邮箱是必填项',
            'password.required' =>  '密码是必填项',
        ];
        $this->validate($request, [
            'email' =>  'required|email',
            'password'  =>  'required',
        ], $message);

        $credentials = $request->only('email', 'password');
        // 假设您的用户模型有一个 'status' 字段，表示用户是否激活
        $credentials['status'] = 1; 

        // 2. 尝试认证用户
        if (Auth::attempt($credentials)) {
            // 认证成功
            Session::flash('success', '欢迎回来，' . Auth::user()->name);
            // 重定向到名为 'dashboard' 的路由
            return redirect()->route('dashboard');
        } else {
            // 认证失败
            Session::flash('error', '抱歉！请重试。您的登录凭据不正确或账户未激活。');
            // 重定向回上一页
            return redirect()->back()->withInput($request->only('email'));
        }
    }
}

<?php

use App\Http\Controllers;
use Illuminate\Support\Facades\Route;
use Illuminate\Support\Facades\Auth;

/*
|--------------------------------------------------------------------------
| Site Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

// 认证相关的路由，包括 /login, /register, /logout 等
Auth::routes();

// 首页路由
Route::get('/', 'HomeController@index')->name('home');

// 仪表盘路由组，使用 'auth' 中间件保护
// 注意：原始问题中使用了 'guest:api'，这通常不适用于受保护的Web仪表盘。
// 对于Web应用，应使用 'auth' 中间件来确保用户已登录。
Route::middleware(['auth'])->prefix('dashboard')->group(function () {
    Route::get('/', 'HomeController@admin_index')->name('dashboard');
    Route::get('add', 'ManageController@AddArticle')->name('addarticle');
    Route::post('add', 'ManageController@AddArticle')->name('addpostarticle');
    // ... 其他仪表盘相关路由
});