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");

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");

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']);

在laravel 5.8中，你可以做以下事情:

return redirect()->back()->withErrors(['name' => 'The name is required']);

在刀刃上:

@error('name')
<p>{{ $message }}</p>
@enderror

    **Try This**
    
    Try This Code 
    --- Controller ---

    return redirect('list')->with('message', 'Successfully');
    return redirect('list');
   
  ----  Blade view ------
    @if(session()->has('message'))
        <div class="alert alert-success">
            {{ session()->get('message') }}
        </div>
    @endif

Laravel 5.6。*

控制器

if(true) {
   $msg = [
        'message' => 'Some Message!',
       ];

   return redirect()->route('home')->with($msg);
} else {
  $msg = [
       'error' => 'Some error!',
  ];
  return redirect()->route('welcome')->with($msg);
}

叶片模板

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

Enyoj