Laravel 错误：此路由不支持 PUT 方法。支持的方法：GET、HEAD、POST答案

【问题标题】：Laravel error: The PUT method is not supported for this route. Supported methods: GET, HEAD, POSTLaravel 错误：此路由不支持 PUT 方法。支持的方法：GET、HEAD、POST
【发布时间】：2022-01-07 07:02:57
【问题描述】：

我正在尝试使用 Put 方法，这是我的结果....

Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException
The PUT method is not supported for this route. Supported methods: GET, HEAD, POST.
http://localhost:3000/admin/genres/

这是路由：

Route::middleware(['auth', 'admin'])->prefix('admin')->group(function () {
    Route::redirect('/', 'records');
    Route::resource('genres', 'Admin\GenreController');
    Route::get('records', 'Admin\RecordController@index');
});

这是控制器中的函数：

public function update(Request $request, Genres $genres)
    {
        // Validate $request
        $this->validate($request,[
            'name' => 'required|min:3|unique:genres,name,' . $genres->id
        ]);

        // Update genre
        $genres->name = $request->name;
        $genres->save();

        // Flash a success message to the session
        session()->flash('success', 'The genre has been updated');
        // Redirect to the master page
        return redirect('admin/genres');
    }

这是刀片中的 HTML 表单代码：

@extends('layouts.template')

@section('title', 'Edit genre')

@section('main')
    <h1>Edit genre: {{ $genres->name }}</h1>
    <form action="/admin/genres/{{ $genres->id }}" method="post">
<!-- this is where is goes wrong i guess... -->
        @method('put')
        @csrf
        <div class="form-group">
            <label for="name">Name</label>
            <input type="text" name="name" id="name"
                class="form-control @error('name') is-invalid @enderror"
                placeholder="Name"
                minlength="3"
                required
                value="{{ old('name', $genres->name ?? '') }}">
            @error('name')
            <div class="invalid-feedback">{{ $message }}</div>
            @enderror
        </div>
        <button type="submit" class="btn btn-success">Save genre</button>
    </form>
@endsection

这是路由表：

+--------+----------------------------------------+---------------------------+------------------+------------------------------------------------------------------------+------------+
| Domain | Method                                 | URI                       | Name             | Action                                                                 | Middleware |
+--------+----------------------------------------+---------------------------+------------------+------------------------------------------------------------------------+------------+
|        | GET|HEAD                               | /                         |                  | Illuminate\Routing\ViewController                                      | web        |
|        | GET|HEAD|POST|PUT|PATCH|DELETE|OPTIONS | admin                     |                  | Illuminate\Routing\RedirectController                                  | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | admin/genres              | genres.index     | App\Http\Controllers\Admin\GenreController@index                       | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | POST                                   | admin/genres              | genres.store     | App\Http\Controllers\Admin\GenreController@store                       | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | admin/genres/create       | genres.create    | App\Http\Controllers\Admin\GenreController@create                      | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | admin/genres/{genre}      | genres.show      | App\Http\Controllers\Admin\GenreController@show                        | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | PUT|PATCH                              | admin/genres/{genre}      | genres.update    | App\Http\Controllers\Admin\GenreController@update                      | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | DELETE                                 | admin/genres/{genre}      | genres.destroy   | App\Http\Controllers\Admin\GenreController@destroy                     | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | admin/genres/{genre}/edit | genres.edit      | App\Http\Controllers\Admin\GenreController@edit                        | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | admin/records             |                  | App\Http\Controllers\Admin\RecordController@index                      | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        |                                        |                           |                  |                                                                        | admin      |
|        | GET|HEAD                               | api/user                  |                  | Closure                                                                | api        |
|        |                                        |                           |                  |                                                                        | auth:api   |
|        | GET|HEAD                               | contact-us                |                  | App\Http\Controllers\ContactUsController@show                          | web        |
|        | POST                                   | contact-us                |                  | App\Http\Controllers\ContactUsController@sendEmail                     | web        |
|        | GET|HEAD                               | home                      | home             | App\Http\Controllers\HomeController@index                              | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | GET|HEAD                               | itunes                    |                  | App\Http\Controllers\ItunesController@index                            | web        |
|        | POST                                   | login                     |                  | App\Http\Controllers\Auth\LoginController@login                        | web        |
|        |                                        |                           |                  |                                                                        | guest      |
|        | GET|HEAD                               | login                     | login            | App\Http\Controllers\Auth\LoginController@showLoginForm                | web        |
|        |                                        |                           |                  |                                                                        | guest      |
|        | POST                                   | logout                    | logout           | App\Http\Controllers\Auth\LoginController@logout                       | web        |
|        | GET|HEAD                               | password/confirm          | password.confirm | App\Http\Controllers\Auth\ConfirmPasswordController@showConfirmForm    | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | POST                                   | password/confirm          |                  | App\Http\Controllers\Auth\ConfirmPasswordController@confirm            | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | POST                                   | password/email            | password.email   | App\Http\Controllers\Auth\ForgotPasswordController@sendResetLinkEmail  | web        |
|        | GET|HEAD                               | password/reset            | password.request | App\Http\Controllers\Auth\ForgotPasswordController@showLinkRequestForm | web        |
|        | POST                                   | password/reset            | password.update  | App\Http\Controllers\Auth\ResetPasswordController@reset                | web        |
|        | GET|HEAD                               | password/reset/{token}    | password.reset   | App\Http\Controllers\Auth\ResetPasswordController@showResetForm        | web        |
|        | GET|HEAD                               | register                  | register         | App\Http\Controllers\Auth\RegisterController@showRegistrationForm      | web        |
|        |                                        |                           |                  |                                                                        | guest      |
|        | POST                                   | register                  |                  | App\Http\Controllers\Auth\RegisterController@register                  | web        |
|        |                                        |                           |                  |                                                                        | guest      |
|        | GET|HEAD                               | shop                      |                  | App\Http\Controllers\ShopController@index                              | web        |
|        | GET|HEAD                               | shop/{id}                 |                  | App\Http\Controllers\ShopController@show                               | web        |
|        | GET|HEAD|POST|PUT|PATCH|DELETE|OPTIONS | user                      |                  | Illuminate\Routing\RedirectController                                  | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | GET|HEAD                               | user/password             |                  | App\Http\Controllers\User\PasswordController@edit                      | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | POST                                   | user/password             |                  | App\Http\Controllers\User\PasswordController@update                    | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | GET|HEAD                               | user/profile              |                  | App\Http\Controllers\User\ProfileController@edit                       | web        |
|        |                                        |                           |                  |                                                                        | auth       |
|        | POST                                   | user/profile              |                  | App\Http\Controllers\User\ProfileController@update                     | web        |
|        |                                        |                           |                  |                                                                        | auth       |
+--------+----------------------------------------+---------------------------+------------------+------------------------------------------------------------------------+------------+

我真的很想得到一些帮助，因为这是我的学校项目：D 我的朋友项目有效，但我们不知道为什么它不起作用。

对不起，我的英语不好：D

【问题讨论】：

您的路线指定了“get”方法：Route::get('records', 'Admin\RecordController@index');。将其更改为 Route::put
那是一个不同的页面正在使用的那个 ````Route::resource('genres', 'Admin\GenreController');```
执行php artisan routes:list 以查看资源定义了哪些路由
路由表已添加：D
您的表单操作是/admin/genres/{{ $genres->id }}，但错误消息显示您正在点击/admin/genres/。看起来$genres->id 可能会丢失？查看您的 html 表单上的源代码并查看该表单操作 URL 的样子。

标签： php laravel-8 laravel-blade

【解决方案1】：

请尝试更新表单中的操作

<form action="{{ route('genres.update', ['genres' => $genres->id]) }}" method="POST">
@method('PUT')

// and in controller

public function update(Request $request, Genres $genres)
{
   dd($genres);
}

【讨论】：

【解决方案2】：

尝试在更新操作中添加$id

喜欢：

public function update($id) { ....

【讨论】：

不，这有点奇怪，也许有点解释？
like this : ``` public function update(Request $request, Genres $genres, $id) { // 验证 $request $this->validate($request,[ 'name' => '必需|min:3|unique:genres,name,' . $genres->id ]); // 更新流派 $genres->name = $request->name; $流派->保存（）； // 向会话发送成功消息 session()->flash('success', '该类型已更新'); // 重定向到母版页 return redirect('admin/genres'); } ```
$id 无法识别
这毫无意义 - 错误表明请求没有路由，因此显然请求根本没有到达 update() 方法。