laravel auth认证

 ‘providers‘ => [
        ‘users‘ => [
            ‘driver‘ => ‘eloquent‘,
            ‘model‘ => \App\Model\User::class,
        ],

use Illuminate\Foundation\Auth\User as AuthUser; 

class User extends AuthUser
{
    //守卫
    //拒绝添加的字段
    protected $guarded = [];
}

        $post = $this->validate($request, [
            ‘username‘ => ‘required‘,
            ‘password‘ => ‘required‘,
        ], [
            ‘username.required‘ => ‘账号是必填的‘,
            ‘password.required‘ => ‘密码是必填的‘,
        ]);
        //如果登录成功
        if (auth()->attempt($post)) {
            return ‘sss‘;
        }
        //登录失败
        return redirect(route(‘admin.login‘))->withErrors([‘error‘=>‘登录失败！‘]);

auth()->logout();

　　　　 //检查用户是否登录
        //登录则返回true,未登录返回false
        auth()->check();
        
        //未登录返回true（代表是游客）,登录返回false
        auth()->guest();

        //获取用户的信息
        //如果用户没有登录，则返回空值  null
        auth()->user();
        auth()->id();