Laravel Lumen中找不到Input类。

Question

您好，我正在测试Lumen这个新的Laravel微型框架，当我试图从Web服务中获取输入时，我遇到了以下错误：

Fatal error: Class 'App\Http\Controllers\Input' not found in   C:\wamp\www\lumen\app\Http\Controllers\WsController.php

这是我的代码：

<?php namespace App\Http\Controllers;

class WsController extends Controller {

 public function addUser()
  {
        $user = new Models\User;
        $user->email = Input::get('email');;
        $user->password = strtoupper(md5(Input::get('password')));
        $user->first_name = Input::get('first_name');
        $user->last_name = Input::get('last_name');
        if($user->save()){
            return Models\User::all();
        }
  }
 }

- karmous

---

你在 bootstrap.php 中取消注释了 withFacades 吗？ - N.B.

你能否在你的namespace后面尝试使用App\Http\Controllers\Input; - Irfan Ahmed

Answer 1

解决方案 #1

在bootstrap/app.php中取消注释$app->withFacades();，以允许您在控制器中使用外观。

<?php 

namespace App\Http\Controllers;

use Input;

class WsController extends Controller 
{

    public function addUser(Request $request)
    {
        $user = new Models\User;
        $user->email = Input::get('email');
        $user->password = strtoupper(md5(Input::get('password')));
        $user->first_name = Input::get('first_name');
        $user->last_name = Input::get('last_name');
        if($user->save()) {
            return Models\User::all();
        }
    }
}

解决方案 #2（个人偏好）

使用依赖注入将Illuminate\Http\Request类注入到您的方法中。

<?php 

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class WsController extends Controller 
{

    public function addUser(Request $request)
    {
        $user = new Models\User;
        $user->email = $request->input('email');;
        $user->password = strtoupper(md5($request->input('password')));
        $user->first_name = $request->input('first_name');
        $user->last_name = $request->input('last_name');

        if($user->save()) {
            return Models\User::all();
        }
    }
}

- N.B.

---

如何在GET方法中添加$request？ - Volatil3

@N.B. 那么我是创建Request对象的实例作为参数，还是通过调用Request门面静态调用呢？ - Volatil3

@Volatil3 你可以直接将作为控制器第一个参数的 Request 实例传递给你的模型。 - N.B.

Input门面和$request->input()之间的区别在于，后者示例中访问的是数组，您无法调用has()、get()等方法。 - Sisir

Answer 2

   <?php namespace App\Http\Controllers;

    use Illuminate\Support\Facades\Request as Request;

    class WsController extends Controller {

    public function addUser()
    {        
            //creating a new user object from User model class
            $user = new Models\User;
            //getting the email value from the email input like Input::get('email');
            $user->email = Request::input('email');
            //same as above happen with the rest of the lines
            $user->password = strtoupper(md5(Request::input('password')));
            $user->first_name = Request::input('first_name');
            $user->last_name = Request::input('last_name');
            //User model has a save() method, so is calling if return true the if block will be executed
            if($user->save()){
            return Models\User::all();
            }
      }

            //this is the best way in lumen to execute some method, because lumen is powerful in small APIs and restful services
    }

- Vivek