php – Laravel：重定向数据

参见英文答案 > Laravel : Session data to view                                    3个
我正在尝试使用()发送数据但在视图中登录页面刷新但没有显示任何内容.我几乎已经尝试了所有内容,我已经阅读了几乎所有方式尝试过的许多问题.

我的控制器,if条件正在运行.

public function authenticate(Request $request)
{
    $validator = Validator::make(Input::get(),
        [
            'password' => 'required',
            'username' => 'required'
        ]
    );
    if ($validator->fails()) {
        return redirect()
            ->back()
            ->withErrors($validator->errors())
            ->with('message', 'Invalid Username or Password.')
            ->with('form', 'login')
            ->withInput(\Input::except('password'));
    }
    $user = array(
        'name' => Input::get('username'),
        'password' => Input::get('password')
    );
    if (Auth::attempt($user)) {
        return redirect()->intended('dashboard');
    } else {
        $request->session()->put('error_message', 'Incorrect email or password');
        $request->session()->put('form', 'login');
        return redirect()
            ->back();

    }
} 

我的观点是：

    <form class="login-form" method="post" style="{{{ Session::get('form', 'login') == 'login' ? 'display:block' : 'display:none;' }}}">
    <input type="hidden" name="_token" value="{{ csrf_token() }}">
    <h3 class="form-title">Login to your account</h3>
    <div class="alert alert-danger {{{ (Session::has('message') && Session::get('form', 'login') == 'login') ? '' : 'display-hide' }}}">
        <button class="close" data-close="alert"></button>

        <span>
            {!! Session::has('message') ? Session::get('message') : 'Please correct your fields.' !!}
        </span>

        <span>
            {!! session()->has('error_message') ? session('error_message') : 'Please correct your fields.' !!}
        </span>
    </div>
    <div class='form-group {{ $errors->has("username") ? "has-error":"" }}'>
        <!--ie8, ie9 does not support html5 placeholder, so we just show field title for that-->
        <label class="control-label visible-ie8 visible-ie9">@Username</label>
        <div class="input-icon">
            <i class="fa fa-envelope"></i>
            {!! Form::text('username', '', ['class' => 'form-control placeholder-no-fix', 'placeholder' => 'Username']) !!}
            <span class="help-block"> {{ $errors->first("username") }} </span>
        </div>
    </div>
    <div class='form-group {{ $errors->has("password") ? "has-error":"" }}'>
        <label class="control-label visible-ie8 visible-ie9">Password</label>
        <div class="input-icon">
            <i class="fa fa-lock"></i>
            {!! Form::password('password', ['class' => 'form-control placeholder-no-fix', 'placeholder' => 'Password']) !!}
            <span class="help-block"> {{ $errors->first("password") }} </span>
        </div>
    </div>
    <div class="form-actions">
        <!--<label class="checkBox">
        <input type="checkBox" name="remember" value="1"/> Remember me </label>-->
        <button type="submit" class="btn red pull-right">
        Login <i class="m-icon-swapright m-icon-white"></i>
        </button>
    </div>
    <br/>
    <div class="forget-password">
        <h4>Forgot your password ?</h4>
        <p>
            <a href="javascript:;" id="forget-password">Reset</a> your account login info.
        </p>
    </div>
</form>

Routes.PHP有这些路线：

Route::group(['middleware' => 'guest'], function ()
{
    // login routes

    Route::get('/login', ['as' => 'login', 'uses' =>  "CommonController@showLogin"]);
    Route::post('/login', ['uses' =>  "CommonController@authenticate"]);

    Route::post('/reset', "Auth\PasswordController@postemail");
    Route::get('/password/reset/{token}', 'CommonController@showReset');
    Route::post('/password/reset', 'Auth\PasswordController@postReset');

});
    Route::get('/welcome', 'HomeController@index');

Route::group(['middleware' => ['auth']], function ()
{
    // COMMONS
    Route::get('/', 'CommonController@index');
    Route::get('/dashboard', ['as' => 'dashboard', 'uses' => 'CommonController@routeDashboard']);
    Route::get('/logout', ['as' => 'logout', 'uses' =>  "CommonController@logout"]);



    Route::group(['as' => 'admin::', 'middleware' => 'role:admin'], function ()
    {

        // USERS
        Route::group(['as' => 'users::', 'prefix' => 'users'], function ()
        {
            Route::get('/', ['as' => 'manage', 'uses' => 'AdminController@showManageUsers']);
            Route::post('handle', ['as' => 'handle', 'uses' => 'AdminController@handleUsers']);

            Route::get('new', ['as' => 'new', 'uses' => 'AdminController@newUser']);
            Route::post('new', ['uses' => 'AdminController@newUserSave']);

            Route::get('edit-basic/{id}', ['as' => 'edit_basic', 'uses' => 'AdminController@editUserBasic']);
            Route::post('edit-basic/{id}', ['uses' => 'AdminController@editUserBasicSave']);

            Route::get('edit-historical/{id}', ['as' => 'edit_historical', 'uses' => 'AdminController@editUserHistorical']);
            Route::post('edit-historical/{id}', ['uses' => 'AdminController@editUserHistoricalSave']);

            Route::post('validate-username', ['as' => 'validate_username', 'uses' => 'AdminController@validateUsername']);
            Route::post('validate-email/{id?}', ['as' => 'validate_email', 'uses' => 'AdminController@validateEmail']);
        });

    });

});

如果用户名和密码错误,则消息不会显示.

解决方法:

尝试使用$request->session()->put()添加消息：

$request->session()->put('error_message', 'Incorrect email or password');
$request->session()->put('form', 'login');

获取会话数据：

{!! session()->get('error_message', 'Please correct your fields.') !!}

要么

{!! session()->has('error_message') ? session('error_message') : 'Please correct your fields.' !!}

另外,检查您的会话是否正常工作.很少有东西会破坏丢弃会话数据,比如manually adding web middleware in 5.2.27及更高版本.