PSR-4自动加载无法正常工作 [英] PSR-4 autoloading not working

问题描述

我已经创建了一个app/modules目录，并使用PSR-4将其自动加载，如下所示:

I have created an app/modules directory and autoloaded it using PSR-4 like this:

"psr-4": {
    "Modules\\": "app/modules"
}

我也做了composer dumpautoload.我具有以下目录结构:

And I also did composer dumpautoload. I have the following directory structure:

app
- ...
- modules
-- ModuleName
--- controllers
---- BackendController.php
...

文件BackendController.php具有名称空间Modules\ModuleName\Controllers.

在routes.php中，我有以下内容:

Route::resource('backend/modules/module-name', 'Modules\ModuleName\Controllers\BackendController');

但是，每当我尝试访问后端/模块/模块名称"时，我都会收到带有以下消息的ReflectionException:

But whenever I try to access 'backend/modules/module-name', I get a ReflectionException with the following message:

Class Modules\ModuleName\Controllers\BackendController does not exist

可能是什么原因引起的问题?当我在本地计算机上运行它时，它似乎可以运行，但无法在Web服务器上运行.是否有任何服务器配置方案可能会导致此问题?

What may be causing the problem? When I run it in my local machine, it seems to work, but I can't get it to work on the webserver. Are there any server configuration scenarios, that may be causing this problem?

由于我无权访问该Web服务器，因此我没有在Web服务器上安装composer，但已将其安装在本地计算机上.我已将包括vendor目录的所有文件上传到服务器.

Since I don't have shell access to that webserver, I don't have composer installed on the webserver but it is installed on my local machine. I have uploaded all the files including vendor directory, to the server.

推荐答案

来自 PSR-4规范:

必须以区分大小写的方式引用所有类名.

All class names MUST be referenced in a case-sensitive fashion.

因此，您需要将modules和controllers文件夹分别重命名为Modules和Controllers.

So you'll need to rename your modules and controllers folders to Modules and Controllers respectively.

它变成:

app
- ...
- Modules
-- ModuleName
--- Controllers
---- BackendController.php
...

我不建议将名称空间重命名为小写名称，因为这只会破坏代码和项目结构的一致性.维护并弄清楚名称空间的哪一部分需要大写，哪一个不需要大写，将是一件令人头疼的事.

I wouldn't recommend renaming your namespaces to lowercase names because that just breaks the consistency in your code and project structure. It will be a headache to maintain and figure out which part of your namespace needs to be capitalized which one doesn't.

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