在叶片

 @if(Session::has('success'))

    <div class="alert alert-success" id="alert">
        <strong>Success:</strong> {{Session::get('success')}}
    </div>

@elseif(session('error'))
    <div class="alert alert-danger" id="alert">
        
        <strong>Error:</strong>{{Session::get('error')}}
    </div>
@endif

在控制器 成功的

 return redirect()->route('homee')->with('success','Successfully Log in '); 

为错误

 return back()->with('error',"You are not able to access");

当我试图重定向时，我收到了这条消息:

public function validateLogin(LoginRequest $request){
    //

    return redirect()->route('sesion.iniciar')
            ->withErrors($request)
            ->withInput();

当正确的方式是:

public function validateLogin(LoginRequest $request){
    //

    return redirect()->route('sesion.iniciar')
            ->withErrors($request->messages())
            ->withInput();

对于拉拉维尔3

只是提醒一下@giannis christofakis的回答;对于任何使用Laravel 3替代

return Redirect::back()->withErrors(['msg', 'The Message']);

:

return Redirect::back()->with_errors(['msg', 'The Message']);

与 Laravel 5.8 相关：

控制器

return back()->with('error', 'Incorrect username or password.');

叶片

  @if (Session::has('error'))
       <div class="alert alert-warning" role="alert">
           {{Session::get('error')}}
       </div>
  @endif

在Laravel 5.5中:

return back()->withErrors($arrayWithErrors);

在使用Blade的视图中:

@if($errors->has())
    <ul>
    @foreach ($errors->all() as $error)
        <li>{{ $error }}</li>
    @endforeach
    </ul>
@endif

Laravel 5及以后

控制器

 return redirect()->back()->with('success', 'your message,here');   

叶:

@if (\Session::has('success'))
    <div class="alert alert-success">
        <ul>
            <li>{!! \Session::get('success') !!}</li>
        </ul>
    </div>
@endif