如果用户未通过身份验证则 Auth 中间件会把用户重定向到登录页面？

public function __construct()
{
$this->middleware('auth', [
'except' => ['show', 'create', 'store']
]);
}

在这一步的时候，一直不管用，不知道什么原因

代码如下：
class UsersController extends Controller

{
//
//

public function __construct()
{
    $this->middleware('auth', [            
        'except' => ['show', 'create', 'store']
    ]);
}
public function create()
{
    return view ('users.create');

}
public function show(User $user)
{
    return view('users.show',compact('user'));
}
 public function store(Request $request)
{
    $this->validate($request, [
        'name' => 'required|max:50',
        'email' => 'required|email|unique:users|max:255',
        'password' => 'required|confirmed|min:6'
    ]);
   $user = User::create([
        'name' => $request->name,
        'email' => $request->email,
        'password' => bcrypt($request->password),
    ]);
     Auth::login($user);
   session()->flash('success', '欢迎，您将在这里开启一段新的旅程~');
    return redirect()->route('users.show', [$user]);
}

public function edit(User $user)
{
 return view('users.edit',compact('user'));

}

public function update(User $user,Request $request)

{
    $this->validate($request,[
        'name' =>'required|max:50',
        'password' => 'nullable|confirmed|min:6'
        ]);
    $data=[];
    $data['name']=$request->name;
    if($request->password)
    {
        $data['password']=bcrypt('$request->password');
    }
    $user->update($data);
    session()->flash('success',' 更新个人资料成功！');

    return redirect()->route('users.show',$user->id);
}

}