Laravel注册表单图片上传失败：常见原因与解决方案

<input id="image " type="file" class="form-control @error('image ') is-invalid @enderror" name="image " value="{{ old('image ') }}" autocomplete="image " autofocus>

<form method="POST" action="{{ route('register') }}" enctype="multipart/form-data">
    @csrf
    <div class="row mb-3">
        <label for="image" class="col-md-4 col-form-label text-md-end">{{ __('Image') }}</label>
        <div class="col-md-6">
            <input id="image" type="file" class="form-control @error('image') is-invalid @enderror" name="image" value="{{ old('image') }}" autocomplete="image" autofocus>
            @error('image')
                <span class="invalid-feedback" role="alert">
                    <strong>{{ $message }}</strong>
                </span>
            @enderror
        </div>
    </div>
    <!-- 其他表单字段 -->
    <div class="row mb-0">
        <div class="col-md-6 offset-md-4">
            <button type="submit" class="btn btn-primary">
                {{ __('Register') }}
            </button>
        </div>
    </div>
</form>

<?php

namespace App\Http\Controllers\Auth;

use App\Http\Controllers\Controller;
use App\Models\User;
use Illuminate\Foundation\Auth\RegistersUsers;
use Illuminate\Support\Facades\Hash;
use Illuminate\Support\Facades\Validator;
use Illuminate\Http\Request; // 引入Request类
use Illuminate\Support\Facades\Storage; // 引入Storage Facade

class RegisterController extends Controller
{
    use RegistersUsers;

    protected $redirectTo = '/home';

    public function __construct()
    {
        $this->middleware('guest');
    }

    protected function validator(array $data)
    {
        return Validator::make($data, [
            'name' => ['required', 'string', 'max:255'],
            'first_name' => ['required', 'string', 'max:255'],
            'last_name' => ['required', 'string', 'max:255'],
            'email' => ['required', 'string', 'email', 'max:255', 'unique:users'],
            'mobile' => ['required', 'string', 'max:20'],
            'address' => ['required', 'string', 'max:255'],
            'postal_code' => ['required', 'string', 'max:10'],
            'state_id' => ['required', 'integer'],
            'city_id' => ['required', 'integer'],
            'password' => ['required', 'string', 'min:8', 'confirmed'],
            'image' => ['nullable', 'image', 'mimes:jpeg,png,jpg,gif,svg', 'max:2048'], // 添加图片验证规则
        ]);
    }

    protected function create(array $data)
    {
        $imagePath = null; // 初始化图片路径为null

        // 检查请求中是否存在名为'image'的文件
        if (request()->hasFile('image')) {
            $file = request()->file('image');
            // 生成唯一文件名，避免文件名冲突
            $fileName = time() . '_' . uniqid() . '.' . $file->getClientOriginalExtension();
            // 使用Storage Facade存储文件，'public'是配置文件中定义的磁盘
            // 文件将存储在 storage/app/public/images/users 目录下
            $imagePath = Storage::disk('public')->putFileAs('images/users', $file, $fileName);
            // Storage::putFileAs() 返回的是相对路径，例如 'images/users/1678888888_abc.jpg'
        }

        return User::create([
            'name' => $data['name'],
            'first_name' => $data['first_name'],
            'last_name' => $data['last_name'],
            'email' => $data['email'],
            'mobile' => $data['mobile'],
            'address' => $data['address'],
            'postal_code' => $data['postal_code'],
            'state_id' => $data['state_id'],
            'city_id' => $data['city_id'],
            'password' => Hash::make($data['password']),
            'image' => $imagePath, // 将图片相对路径保存到数据库
        ]);
    }
}