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+# 文件上传
+
+## 后端上传
+
+::: tip
+
+文件上传由 MineAdmin 接入 [mineadmin/upload](https://github.com/mineadmin/upload) 组件建设而成
+
+:::
+
+MineAdmin 提供了一个默认的服务端文件上传逻辑。接口 `/admin/attachment/upload`
+并且在上传成功后接入了资源管理器。
+
+::: code-group
+
+```php [ControllerUpload]
+#[Post(
+    path: '/admin/attachment/upload',
+    operationId: 'UploadAttachment',
+    summary: '上传附件',
+    security: [['Bearer' => [], 'ApiKey' => []]],
+    tags: ['数据中心'],
+)]
+#[Permission(code: 'attachment:upload')]
+#[ResultResponse(instance: new Result())]
+public function upload(UploadRequest $request): Result
+{
+    $uploadFile = $request->file('file');
+    $newTmpPath = sys_get_temp_dir() . '/' . uniqid() . '.' . $uploadFile->getExtension();
+    $uploadFile->moveTo($newTmpPath);
+    $splFileInfo = new SplFileInfo($newTmpPath, '', '');
+    return $this->success(
+        $this->service->upload($splFileInfo, $uploadFile, $this->currentUser->id())
+    );
+}
+```
+
+```php [Service->Upload]
+
+namespace App\Service;
+
+use App\Model\Attachment;
+use App\Repository\AttachmentRepository;
+use Hyperf\HttpMessage\Upload\UploadedFile;
+use Mine\Upload\UploadInterface;
+use Symfony\Component\Finder\SplFileInfo;
+
+/**
+ * @extends IService<AttachmentRepository>
+ */
+final class AttachmentService extends IService
+{
+    public function __construct(
+        protected readonly AttachmentRepository $repository,
+        protected readonly UploadInterface $upload
+    ) {}
+
+    public function upload(SplFileInfo $fileInfo, UploadedFile $uploadedFile, int $userId): Attachment
+    {
+        $fileHash = md5_file($fileInfo->getRealPath());
+        if ($attachment = $this->repository->findByHash($fileHash)) {
+            return $attachment;
+        }
+        $upload = $this->upload->upload(
+            $fileInfo,
+        );
+        return $this->repository->create([
+            'created_by' => $userId,
+            'origin_name' => $uploadedFile->getClientFilename(),
+            'storage_mode' => $upload->getStorageMode(),
+            'object_name' => $upload->getObjectName(),
+            'mime_type' => $upload->getMimeType(),
+            'storage_path' => $upload->getStoragePath(),
+            'hash' => $fileHash,
+            'suffix' => $upload->getSuffix(),
+            'size_byte' => $upload->getSizeByte(),
+            'size_info' => $upload->getSizeInfo(),
+            'url' => $upload->getUrl(),
+        ]);
+    }
+```
+
+:::
+
+### 替换本地存储为 Oss 存储
+
+在日常的业务场景中，一般文件存储在 OSS 上。那么此时就需要替换默认的文件上传处理了。以阿里云举例
+首先我们要配置 `config/autoload/file.php` 文件。新增阿里云通道。
+然后新建一个 `AliyunUploadSubscribe` 替换 `config/autoload/listeners.php` 中默认的 `UploadSubscribe` 指定为阿里云通道
+
+
+::: code-group
+
+```php{19} [AliyunUploadSubscribe]
+<?php
+// app/Http/Common/Subscribe/AliyunUploadSubscribe.php
+declare(strict_types=1);
+/**
+ * This file is part of MineAdmin.
+ *
+ * @link     https://www.mineadmin.com
+ * @document https://doc.mineadmin.com
+ * @contact  root@imoi.cn
+ * @license  https://github.com/mineadmin/MineAdmin/blob/master/LICENSE
+ */
+
+namespace App\Http\Common\Subscriber\Upload;
+
+use Mine\Upload\Listener\UploadListener as AbstractUploadListener;
+
+final class AliyunUploadSubscribe extends AbstractUploadListener
+{
+    public const ADAPTER_NAME = 'oss';
+}
+
+```
+
+```php{28-40} [file.php]
+<?php
+// config/autoload/file.php
+declare(strict_types=1);
+/**
+ * This file is part of MineAdmin.
+ *
+ * @link     https://www.mineadmin.com
+ * @document https://doc.mineadmin.com
+ * @contact  root@imoi.cn
+ * @license  https://github.com/mineadmin/MineAdmin/blob/master/LICENSE
+ */
+use Hyperf\Filesystem\Adapter\AliyunOssAdapterFactory;
+use Hyperf\Filesystem\Adapter\CosAdapterFactory;
+use Hyperf\Filesystem\Adapter\FtpAdapterFactory;
+use Hyperf\Filesystem\Adapter\LocalAdapterFactory;
+use Hyperf\Filesystem\Adapter\MemoryAdapterFactory;
+use Hyperf\Filesystem\Adapter\QiniuAdapterFactory;
+use Hyperf\Filesystem\Adapter\S3AdapterFactory;
+
+return [
+    'default' => 'local',
+    'storage' => [
+        'local' => [
+            'driver' => LocalAdapterFactory::class,
+            'root' => BASE_PATH . '/storage/uploads',
+            'public_url' => env('APP_URL') . '/uploads',
+        ],
+        'oss' => [
+            'driver' => AliyunOssAdapterFactory::class,
+            'accessId' => '',
+            'accessSecret' => '',
+            'bucket' => '',
+            'endpoint' => '',
+            'domain' => '',
+            'schema' => 'http://',
+            'isCName' => false,
+            // 'timeout'        => 3600,
+            // 'connectTimeout' => 10,
+            // 'token'          => '',
+        ],
+    ],
+];
+
+```
+
+```php{20,25-28} [listeners.php]
+// config/autoload/listeners.php
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of MineAdmin.
+ *
+ * @link     https://www.mineadmin.com
+ * @document https://doc.mineadmin.com
+ * @contact  root@imoi.cn
+ * @license  https://github.com/mineadmin/MineAdmin/blob/master/LICENSE
+ */
+use Hyperf\ExceptionHandler\Listener\ErrorExceptionHandler;
+use Mine\Core\Subscriber\BootApplicationSubscriber;
+use Mine\Core\Subscriber\DbQueryExecutedSubscriber;
+use Mine\Core\Subscriber\FailToHandleSubscriber;
+use Mine\Core\Subscriber\QueueHandleSubscriber;
+use Mine\Core\Subscriber\ResumeExitCoordinatorSubscriber;
+use Mine\Core\Subscriber\Upload\UploadSubscriber;
+use App\Http\Common\Subscriber\AliyunUploadSubscribe;
+use Mine\Support\Listener\RegisterBlueprintListener;
+
+return [
+    ErrorExceptionHandler::class,
+    // 默认文件上传
+    // UploadSubscriber::class,
+    // 阿里云 oss 上传
+    AliyunUploadSubscribe::class,
+    // 处理程序启动
+    BootApplicationSubscriber::class,
+    // 处理 sql 执行
+    DbQueryExecutedSubscriber::class,
+    // 处理命令异常
+    FailToHandleSubscriber::class,
+    // 处理 worker 退出
+    ResumeExitCoordinatorSubscriber::class,
+    // 处理队列
+    QueueHandleSubscriber::class,
+    // 注册新的 Blueprint 宏
+    RegisterBlueprintListener::class,
+];
+
+```
+
+:::
+
+### 修改默认上传文件命名和目录命名
+
+文件的命名以及文件的目录命名默认是由 `Mine\Upload\Listener\UploadListener->generatorPath()` 和
+`Mine\Upload\Listener\UploadListener->generatorId()` 实现的，而所有的上传处理类都是继承与这个类。
+那么以上一张替换 OSS 存储为例。只需要在你的上传处理类中替换这两个方法即可
+
+```php{22-32}
+<?php
+
+declare(strict_types=1);
+/**
+ * This file is part of MineAdmin.
+ *
+ * @link     https://www.mineadmin.com
+ * @document https://doc.mineadmin.com
+ * @contact  root@imoi.cn
+ * @license  https://github.com/mineadmin/MineAdmin/blob/master/LICENSE
+ */
+
+namespace Mine\Core\Subscriber\Upload;
+
+use Hyperf\Stringable\Str;
+use Mine\Upload\Listener\UploadListener as AbstractUploadListener;
+
+final class UploadSubscriber extends AbstractUploadListener
+{
+    public const ADAPTER_NAME = 'local';
+
+    protected function generatorId(): string
+    {
+        // 生成文件名，随机字符串长度为 10
+        return Str::random(10);
+    }
+
+    protected function generatorPath(): string
+    {
+        // 目录格式：年/月/日
+        return date('Y/m/d');
+    }
+
+}
+
+```
+
+
+### 处理流程
+
+`前端`调用接口 `/admin/attachment/upload` ，传入参数 `file`、参数类型为文件。
+服务端文件控制器调用 文件服务对前端传入的 `file` 进行处理、
+`文件服务`判断上传文件hash值是否已经上传过
+如果有。则查询数据库返回上次上传的信息
+如果没有。则`调用 UploadInterface 实例分发一个 UploadEvent 事件`
+分发后。`判断 UploadEvent->isUploaded() 是否上传成功`
+如果上传成功则返回 `Upload` 上传实例
+如果没有上传成功则抛出异常上传失败
+
+#### 流程图
+
+```plantuml
+|前端|
+start
+:调用接口 /admin/attachment/upload，传入文件参数 file;
+|服务端文件控制器|
+:调用文件服务处理 file;
+|文件服务|
+:判断上传文件 hash 值是否已上传过;
+if (已上传过) then (是)
+    :查询数据库返回上次上传信息;
+else (否)
+    :调用 UploadInterface 实例分发 UploadEvent;
+    |UploadEvent|
+    :判断 isUploaded() 是否上传成功;
+    if (上传成功) then (是)
+        :返回 Upload 上传实例;
+    else (否)
+        :抛出异常上传失败;
+    endif
+endif
+```
+
+#### 时序图
+
+```plantuml
+participant "前端" as Frontend
+participant "服务端文件控制器" as Controller
+participant "文件服务" as FileService
+participant "UploadInterface" as Uploader
+participant "数据库" as Database
+
+Frontend -> Controller : 调用接口 /admin/attachment/upload，传入 file
+Controller -> FileService : 处理 file
+FileService -> FileService : 判断文件 hash 值是否已上传过
+alt 已上传过
+    FileService -> Database : 查询数据库
+    Database -> FileService : 返回上次上传信息
+    FileService -> Controller : 返回上次上传信息
+    Controller -> Frontend : 返回上次上传信息
+else 未上传过
+    FileService -> Uploader : 分发 UploadEvent
+    Uploader -> Uploader : 判断 isUploaded() 是否上传成功
+    alt 上传成功
+        Uploader -> FileService : 返回 Upload 上传实例
+        FileService -> Controller : 返回 Upload 上传实例
+        Controller -> Frontend : 返回 Upload 上传实例
+    else 上传失败
+        Uploader -> FileService : 抛出异常上传失败
+        FileService -> Controller : 抛出异常上传失败
+        Controller -> Frontend : 抛出异常上传失败
+    end
+end
+```
+
+## 前端直传 OSS
\ No newline at end of file