Laravel电商应用中如何将文件存储到用户自定义文件夹？

Hey there, let's tackle this file upload issue step by step. That FileNotFoundException you're hitting typically comes from either a missing directory structure or incorrect path handling when interacting with Laravel's filesystem. Here's how to get your files saved to app/public/uploads/{user_id}/attach/ properly:

1. Verify Your Filesystem Configuration #

First, make sure your config/filesystems.php has the public disk set up correctly—this is the disk we'll use since we want files to be publicly accessible:

'public' => [
    'driver' => 'local',
    'root' => storage_path('app/public'),
    'url' => env('APP_URL').'/storage',
    'visibility' => 'public',
],

This tells Laravel the public disk's root is storage/app/public, which maps to the public/storage symlink we'll set up later.

2. Implement the User-Specific Upload Logic #

In your controller, handle the file upload by first creating the user's directory (if it doesn't exist), then storing the file. Here's a complete example:

use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Auth;

public function uploadFile(Request $request)
{
    // Validate the uploaded file first (optional but recommended)
    $request->validate([
        'file' => 'required|file|max:2048', // Adjust max size as needed
    ]);

    // Get the current user's ID (adjust this if you're using a different way to fetch the user)
    $userId = Auth::id();
    // Define the target path relative to the public disk's root
    $targetDir = "uploads/{$userId}/attach";

    // Create the directory if it doesn't exist (true creates parent directories too)
    if (!Storage::disk('public')->exists($targetDir)) {
        Storage::disk('public')->makeDirectory($targetDir, 0755, true);
    }

    // Store the file
    if ($request->hasFile('file')) {
        $file = $request->file('file');
        // Use store() to save the file—this automatically generates a unique filename
        $filePath = $file->store($targetDir, 'public');

        // If you need to save the path to your database, use $filePath
        // Example: $model->file_path = $filePath; $model->save();

        // To get the public URL for the file, use:
        // $publicUrl = Storage::url($filePath);
    }

    return back()->with('success', 'File uploaded successfully!');
}

3. Fix the FileNotFoundException #

Your original error (File not found at path: app/Test1.docx) happened because you were referencing a path that Laravel's filesystem couldn't resolve correctly. By using Storage::disk('public') methods, you let Laravel handle the path resolution relative to the disk's root, eliminating this issue.

4. Set Up the Public Symlink #

To make uploaded files accessible via a web URL, run this Artisan command:

php artisan storage:link

This creates a symlink from public/storage to storage/app/public, so you can access files using URLs like https://your-app.com/storage/uploads/1/attach/your-file.docx.

5. Check Permissions #

Ensure your storage directory and the public/storage symlink have proper read/write permissions. On most servers, setting storage to 755 and files to 644 works:

chmod -R 755 storage/
chmod -R 644 storage/app/public/

内容的提问来源于stack exchange，提问作者user3617088