logo标签列表

Laravel 5.2中出现了“Method [validate] does not exist”错误

phplaravel
7

我刚开始学习 Laravel。 我正在使用 Laravel 5.2.29 版本。 运行代码时出现错误：

糟糕，似乎出了些问题。 BadMethodCallException in Controller.php line 107: 方法 [validate] 不存在。

以下是显示错误的那一行：

in Controller.php line 107
2.at Controller->__call('validate', array(object(Request), array('action' =>        'required', 'name' => 'required'))) in NiceActionController.php line 31
3.at NiceActionController->validate(object(Request), array('action' => 'required', 'name' => 'required')) in NiceActionController.php line 31
4.at NiceActionController->postNiceAction(object(Request))
5.at call_user_func_array(array(object(NiceActionController), 'postNiceAction'), array(object(Request))) in Controller.php line 80
6.at Controller->callAction('postNiceAction', array(object(Request))) in ControllerDispatcher.php line 146
7.at ControllerDispatcher->call(object(NiceActionController), object(Route), 'postNiceAction') in ControllerDispatcher.php line 94
8.at ControllerDispatcher->Illuminate\Routing\{closure}(object(Request))
9.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
10.at Pipeline->Illuminate\Routing\{closure}(object(Request))
11.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
12.at Pipeline->then(object(Closure)) in ControllerDispatcher.php line 96
13.at ControllerDispatcher->callWithinStack(object(NiceActionController), object(Route), object(Request), 'postNiceAction') in ControllerDispatcher.php line 54
14.at ControllerDispatcher->dispatch(object(Route), object(Request), 'App\Http\Controllers\NiceActionController', 'postNiceAction') in Route.php line 174
15.at Route->runController(object(Request)) in Route.php line 140
16.at Route->run(object(Request)) in Router.php line 724
17.at Router->Illuminate\Routing\{closure}(object(Request))
18.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
19.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in VerifyCsrfToken.php line 64
20.at VerifyCsrfToken->handle(object(Request), object(Closure))
21.at call_user_func_array(array(object(VerifyCsrfToken), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
22.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
23.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
24.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in ShareErrorsFromSession.php line 49
25.at ShareErrorsFromSession->handle(object(Request), object(Closure))
26.at call_user_func_array(array(object(ShareErrorsFromSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
27.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
28.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
29.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in StartSession.php line 62
30.at StartSession->handle(object(Request), object(Closure))
31.at call_user_func_array(array(object(StartSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
32.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
33.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
34.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in AddQueuedCookiesToResponse.php line 37
35.at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))
36.at call_user_func_array(array(object(AddQueuedCookiesToResponse), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
37.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
38.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
39.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in EncryptCookies.php line 59
40.at EncryptCookies->handle(object(Request), object(Closure))
41.at call_user_func_array(array(object(EncryptCookies), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
42.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
43.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
44.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in VerifyCsrfToken.php line 64
45.at VerifyCsrfToken->handle(object(Request), object(Closure))
46.at call_user_func_array(array(object(VerifyCsrfToken), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
47.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
48.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
49.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in ShareErrorsFromSession.php line 49
50.at ShareErrorsFromSession->handle(object(Request), object(Closure))
51.at call_user_func_array(array(object(ShareErrorsFromSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
52.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
53.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
54.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in StartSession.php line 62
55.at StartSession->handle(object(Request), object(Closure))
56.at call_user_func_array(array(object(StartSession), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
57.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
58.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
59.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in AddQueuedCookiesToResponse.php line 37
60.at AddQueuedCookiesToResponse->handle(object(Request), object(Closure))
61.at call_user_func_array(array(object(AddQueuedCookiesToResponse), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
62.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
63.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
64.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in EncryptCookies.php line 59
65.at EncryptCookies->handle(object(Request), object(Closure))
66.at call_user_func_array(array(object(EncryptCookies), 'handle'), array(object(Request), object(Closure))) in Pipeline.php line 124
67.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
68.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
69.at Pipeline->Illuminate\Routing\{closure}(object(Request))
70.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
71.at Pipeline->then(object(Closure)) in Router.php line 726
72.at Router->runRouteWithinStack(object(Route), object(Request)) in Router.php line 699
73.at Router->dispatchToRoute(object(Request)) in Router.php line 675
74.at Router->dispatch(object(Request)) in Kernel.php line 246
75.at Kernel->Illuminate\Foundation\Http\{closure}(object(Request))
76.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 52
77.at Pipeline->Illuminate\Routing\{closure}(object(Request)) in CheckForMaintenanceMode.php line 44
78.at CheckForMaintenanceMode->handle(object(Request), object(Closure))
79.at call_user_func_array(array(object(CheckForMaintenanceMode), 'handle'),         array(object(Request), object(Closure))) in Pipeline.php line 124
80.at Pipeline->Illuminate\Pipeline\{closure}(object(Request))
81.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 32
82.at Pipeline->Illuminate\Routing\{closure}(object(Request))
83.at call_user_func(object(Closure), object(Request)) in Pipeline.php line 103
84.at Pipeline->then(object(Closure)) in Kernel.php line 132
85.at Kernel->sendRequestThroughRouter(object(Request)) in Kernel.php line 99
86.at Kernel->handle(object(Request)) in index.php line 54

我的路由代码：

<?php


Route::group(['middleware' => ['web']], function(){

Route::get('/', function () {
    return view('home');
})->name('home');

Route::group(['prefix'=>'do'], function(){


    Route::get('/{action}/{name?}', [
        'uses' => 'NiceActionController@getNiceAction', 
        'as' => 'niceaction'  //router name same as ->name('routername')
    ]);



    Route::post('/', [

        'uses' => 'NiceActionController@postNiceAction',
        'as'   => 'benice'

    ]);

});

});

以下是我的控制器代码：

<?php

namespace App\Http\Controllers;


use Illuminate\Routing\Controller;
use \Illuminate\Http\Request;

class NiceActionController extends Controller
{
public function getNiceAction($action, $name=null)
{
    return view('actions.'.$action, ['name' => $name]);

}

public function postNiceAction(Request $request)
{

    $this->validate($request, [

           'action' => 'required',
           'name' =>'required'

       ]);

            return view('actions.nice',            ['action'=>$request['action'],'name'=>$this->transformName($request['name'])]);

}
private function transformName($name)
{
    $prefix='KING';
    return $prefix.strtoupper($name);
}
}

我的基础主控制器“controller”有以下代码：

<?php

namespace App\Http\Controllers;

use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesResources;


class Controller extends BaseController
{
use AuthorizesRequests, AuthorizesResources, DispatchesJobs, ValidatesRequests;

}

我有什么遗漏吗？？？
2个回答
5

您需要扩展App\Http\Controllers\Controller类，该类使用必要的ValidatesRequests trait实现所需的validate方法。

因此，在您的NiceActionController类中，只需删除此行：

use Illuminate\Routing\Controller;

那么，这一行的意思是：

那样，这一行：

class NiceActionController extends Controller

应该从相同命名空间（更准确地说是App\Http\Controllers\Controller）中扩展适当的Controller类，该类包括必要的traits并且已经扩展了Illuminate\Routing\Controller类（别名为BaseController）。

现在，我在视图中看不到{{$error}}。代码如下：code @if(count($errors)>0)
    @foreach($errors->all() as $error) {{ $error }} @endforeach
@endif........我有什么遗漏吗？ - Tashi Tobgay
当验证失败时会发生什么？因为ValidatesRequests特性中的validate方法会在验证失败时将输入和错误重定向回去。 - Bogdan
当验证失败时，我看不到任何错误消息..... 我有一个文本输入框，如果没有输入值，则应该显示错误验证信息，例如“名称字段是必需的”... - Tashi Tobgay
如果您将 {{ dump($errors) }} 添加到显示错误的代码之前，是否会有任何输出？ - Bogdan
我放置了{{ dump($errors) }}并且尝试了{{ dump($error) }}在{{ $error }}之前....当我将文本字段留空时，它不显示任何错误.... - Tashi Tobgay
好的，当我把我的路由放在这个路由组中时，错误信息没有显示出来：..............Route::group(['middleware' => ['web']], function(){ }..............但是如果我不使用它，错误信息就可以正常显示...有什么解决方法吗？... - Tashi Tobgay
2
为了显示错误，只需删除下面的行和结尾的)}。
Route::group(['middleware' => ['web']], function(){

从5.2版本开始，默认情况下routes.php已经在RouteServiceProvider中以['middleware'=>'web']的上下文被调用。但是在routes.php中默认生成auth路由时，Route::group调用仍然是默认发生的 - 因此如果您从routes.php中删除该Route::group声明，则应用程序会正确显示错误信息。
网页内容由stack overflow 提供, 点击上面的
可以查看英文原文，
原文链接