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- <span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" >/**<span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" ></span></span></span>
- * 存储服务使用示例
- * 演示如何无缝切换 OSS 和本地存储
- */
-
- import { storageService, StorageType } from './storage.service';
-
- // ==================== 示例 1: 基本使用 ====================
- // 存储服务会根据 .env 中的 STORAGE_TYPE 自动选择存储方式
-
- // 上传音频
- <span class="cstat-no" title="statement not covered" >async function uploadAudioExample() {</span>
- <span class="cstat-no" title="statement not covered" > const audioUrl = await storageService.uploadAudio(</span>
- <span class="cstat-no" title="statement not covered" > '/path/to/audio.mp3',</span>
- <span class="cstat-no" title="statement not covered" > 'audio-uuid-123'</span>
- <span class="cstat-no" title="statement not covered" > );</span>
- <span class="cstat-no" title="statement not covered" > console.log('音频上传成功:', audioUrl);</span>
- // OSS 模式: https://bucket.oss-cn-hangzhou.aliyuncs.com/audio/audio-uuid-123/audio.mp3
- // 本地模式: /uploads/audio/audio-uuid-123/audio.mp3
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // 上传视频
- <span class="cstat-no" title="statement not covered" >async function uploadVideoExample() {</span>
- <span class="cstat-no" title="statement not covered" > const videoUrl = await storageService.uploadVideo(</span>
- <span class="cstat-no" title="statement not covered" > '/path/to/video.mp4',</span>
- <span class="cstat-no" title="statement not covered" > 'video-uuid-456'</span>
- <span class="cstat-no" title="statement not covered" > );</span>
- <span class="cstat-no" title="statement not covered" > console.log('视频上传成功:', videoUrl);</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // 上传封面
- <span class="cstat-no" title="statement not covered" >async function uploadCoverExample() {</span>
- <span class="cstat-no" title="statement not covered" > const coverUrl = await storageService.uploadCover(</span>
- <span class="cstat-no" title="statement not covered" > '/path/to/cover.jpg',</span>
- <span class="cstat-no" title="statement not covered" > 123 // bookId</span>
- <span class="cstat-no" title="statement not covered" > );</span>
- <span class="cstat-no" title="statement not covered" > console.log('封面上传成功:', coverUrl);</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 示例 2: 动态切换存储 ====================
- <span class="cstat-no" title="statement not covered" >async function switchStorageExample() {</span>
- // 查看当前存储类型
- <span class="cstat-no" title="statement not covered" > const currentType = storageService.getStorageType();</span>
- <span class="cstat-no" title="statement not covered" > console.log('当前存储类型:', currentType);</span>
-
- // 切换到 OSS
- <span class="cstat-no" title="statement not covered" > storageService.setStorageType('oss');</span>
- <span class="cstat-no" title="statement not covered" > console.log('已切换到 OSS');</span>
-
- // 切换到本地存储
- <span class="cstat-no" title="statement not covered" > storageService.setStorageType('local');</span>
- <span class="cstat-no" title="statement not covered" > console.log('已切换到本地存储');</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 示例 3: 在控制器中使用 ====================
- // 在 TTS 控制器中
- <span class="cstat-no" title="statement not covered" >async function ttsControllerExample(ctx: any) {</span>
- <span class="cstat-no" title="statement not covered" > try {</span>
- <span class="cstat-no" title="statement not covered" > const file = ctx.request.files?.audio;</span>
- <span class="cstat-no" title="statement not covered" > const audioId = ctx.params.id;</span>
-
- // 统一调用,无需关心存储类型
- <span class="cstat-no" title="statement not covered" > const audioUrl = await storageService.uploadAudio(file.path, audioId);</span>
-
- <span class="cstat-no" title="statement not covered" > ctx.body = {</span>
- <span class="cstat-no" title="statement not covered" > code: 0,</span>
- <span class="cstat-no" title="statement not covered" > message: '上传成功',</span>
- <span class="cstat-no" title="statement not covered" > data: { audioUrl },</span>
- <span class="cstat-no" title="statement not covered" > };</span>
- <span class="cstat-no" title="statement not covered" > } catch (error) {</span>
- <span class="cstat-no" title="statement not covered" > ctx.status = 500;</span>
- <span class="cstat-no" title="statement not covered" > ctx.body = { code: 500, message: '上传失败' };</span>
- <span class="cstat-no" title="statement not covered" > }</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 示例 4: 删除文件 ====================
- <span class="cstat-no" title="statement not covered" >async function deleteFileExample() {</span>
- <span class="cstat-no" title="statement not covered" > const fileUrl = '/uploads/audio/123/audio.mp3';</span>
-
- // 统一调用,自动根据存储类型删除
- <span class="cstat-no" title="statement not covered" > await storageService.deleteFile(fileUrl);</span>
- <span class="cstat-no" title="statement not covered" > console.log('文件已删除');</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 示例 5: 删除整个目录 ====================
- <span class="cstat-no" title="statement not covered" >async function deleteDirectoryExample() {</span>
- // 删除某个音频的所有分段
- <span class="cstat-no" title="statement not covered" > await storageService.deleteDirectory('audio', 'audio-uuid-123');</span>
- <span class="cstat-no" title="statement not covered" > console.log('目录已删除');</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 示例 6: 获取签名 URL ====================
- <span class="cstat-no" title="statement not covered" >async function getSignedUrlExample() {</span>
- <span class="cstat-no" title="statement not covered" > const fileUrl = 'https://bucket.oss-cn-hangzhou.aliyuncs.com/audio/123/audio.mp3';</span>
-
- // OSS 模式: 返回临时签名 URL(1小时有效)
- // 本地模式: 直接返回原 URL
- <span class="cstat-no" title="statement not covered" > const signedUrl = await storageService.getSignedUrl(fileUrl, 3600);</span>
- <span class="cstat-no" title="statement not covered" > console.log('签名 URL:', signedUrl);</span>
- <span class="cstat-no" title="statement not covered" >}</span>
-
- // ==================== 配置说明 ====================
- /*
- .env 配置示例:
-
- # 使用阿里云 OSS
- STORAGE_TYPE=oss
- OSS_ENDPOINT=oss-cn-hangzhou.aliyuncs.com
- OSS_ACCESS_KEY_ID=your-key-id
- OSS_ACCESS_KEY_SECRET=your-key-secret
- OSS_BUCKET_NAME=your-bucket
- OSS_REGION=cn-hangzhou
-
- # 使用本地存储
- STORAGE_TYPE=local
- # 其他 OSS 配置可选(切换回 OSS 时使用)
- */
-
- // ==================== 切换存储模式 ====================
- /*
- 方法 1: 修改 .env 文件(推荐)
- 1. 编辑 .env 文件
- 2. 修改 STORAGE_TYPE=oss 或 STORAGE_TYPE=local
- 3. 重启服务
-
- 方法 2: 运行时动态切换
- storageService.setStorageType('oss'); // 切换到 OSS
- storageService.setStorageType('local'); // 切换到本地
-
- 注意:动态切换仅影响后续上传的文件,已上传的文件不会自动迁移
- */
-
- // ==================== 迁移已有文件 ====================
- /*
- 如果需要从本地存储迁移到 OSS(或反向):
-
- 1. 编写迁移脚本
- 2. 遍历 uploads 目录
- 3. 上传到目标存储
- 4. 更新数据库中的 URL
-
- 示例迁移脚本伪代码:
- async function migrateFiles() {
- // 读取所有本地文件
- const files = getAllFiles('./uploads');
-
- for (const file of files) {
- // 上传到 OSS
- const ossUrl = await ossService.uploadFile(file.path, file.key);
-
- // 更新数据库
- await db.updateFileUrl(file.id, ossUrl);
- }
- }
- */
-
- export {
- uploadAudioExample,
- uploadVideoExample,
- uploadCoverExample,
- switchStorageExample,
- deleteFileExample,
- deleteDirectoryExample,
- getSignedUrlExample,
- };
- </pre></td></tr></table></pre>
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