SOUNDVIEW视频翻译:SHARK吸尘器如何靠TIKTOK打破高客单魔咒?
2026/4/8 16:59:09
作为深圳软件有限公司的项目负责人,我们深入分析了贵公司对大文件传输系统的需求,主要面临以下技术挑战:
[客户端] ---HTTPS(加密)---> [Nginx负载均衡] ---> [应用服务集群] | v [阿里云OSS] <---加密存储---> [文件处理服务] <---> [MySQL集群]exportdefault{data(){return{files:[],progress:0,uploadId:'',chunkSize:10*1024*1024,// 10MBconcurrentLimit:3}},methods:{handleFileChange(e){this.files=Array.from(e.target.files)this.prescanFiles(this.files)},asyncprescanFiles(files){const{data}=awaitthis.$http.post('/api/upload/prepare',{files:files.map(f=>({name:f.name,size:f.size,relativePath:f.webkitRelativePath||''}))})this.uploadId=data.uploadId},asyncstartUpload(){for(constfileofthis.files){awaitthis.uploadFile(file)}},asyncuploadFile(file){consttotalChunks=Math.ceil(file.size/this.chunkSize)constchunks=Array(totalChunks).fill().map((_,i)=>({index:i,start:i*this.chunkSize,end:Math.min(file.size,(i+1)*this.chunkSize)}))// 并发控制上传constqueue=[]for(leti=0;i<chunks.length;i++){constchunk=chunks[i]constblob=file.slice(chunk.start,chunk.end)queue.push(this.uploadChunk(file,blob,chunk))if(queue.length>=this.concurrentLimit){awaitPromise.all(queue)queue.length=0}}awaitPromise.all(queue)// 完成上传awaitthis.$http.post('/api/upload/complete',{uploadId:this.uploadId,fileName:file.name,fileSize:file.size,totalChunks,filePath:file.webkitRelativePath||''})},asyncuploadChunk(file,blob,chunk){constformData=newFormData()formData.append('file',blob)formData.append('uploadId',this.uploadId)formData.append('chunkIndex',chunk.index)formData.append('fileName',file.name)formData.append('filePath',file.webkitRelativePath||'')try{awaitthis.$http.post('/api/upload/chunk',formData,{onUploadProgress:progressEvent=>{constpercent=Math.round((progressEvent.loaded/progressEvent.total)*100)this.updateProgress(file.name,chunk.index,percent)}})}catch(error){console.error('上传分片失败:',error)awaitthis.uploadChunk(file,blob,chunk)// 自动重试}},updateProgress(fileName,chunkIndex,percent){// 更新进度逻辑}}}@RestController@RequestMapping("/api/upload")publicclassFileUploadController{@AutowiredprivateFileStorageServicestorageService;@AutowiredprivateRedisTemplateredisTemplate;@PostMapping("/prepare")publicResponseEntityprepareUpload(@RequestBodyUploadPrepareRequestrequest){StringuploadId=UUID.randomUUID().toString();// 初始化上传任务UploadSessionsession=newUploadSession();session.setUploadId(uploadId);session.setFiles(request.getFiles());session.setStatus(UploadStatus.INITIALIZED);session.setCreatedAt(newDate());// 存储到Redis和数据库redisTemplate.opsForValue().set("upload:"+uploadId,session);storageService.saveUploadSession(session);returnResponseEntity.ok(newUploadPrepareResponse(uploadId));}@PostMapping("/chunk")publicResponseEntityuploadChunk(@RequestParam("file")MultipartFilefile,@RequestParam("uploadId")StringuploadId,@RequestParam("chunkIndex")intchunkIndex,@RequestParam("fileName")StringfileName,@RequestParam(value="filePath",required=false)StringfilePath){// 验证上传会话UploadSessionsession=(UploadSession)redisTemplate.opsForValue().get("upload:"+uploadId);if(session==null||session.getStatus()!=UploadStatus.INITIALIZED){returnResponseEntity.status(HttpStatus.BAD_REQUEST).body("无效的上传会话");}try{// 加密存储分片byte[]encryptedChunk=CryptoUtils.encrypt(file.getBytes(),storageService.getEncryptionAlgorithm(),storageService.getEncryptionKey());StringchunkKey=String.format("%s/%s/%d",uploadId,fileName,chunkIndex);storageService.storeChunk(chunkKey,encryptedChunk,filePath);// 更新进度session.getChunkStatuses().put(chunkKey,ChunkStatus.COMPLETED);redisTemplate.opsForValue().set("upload:"+uploadId,session);returnResponseEntity.ok().build();}catch(Exceptione){returnResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body("分片上传失败: "+e.getMessage());}}@PostMapping("/complete")publicResponseEntitycompleteUpload(@RequestBodyUploadCompleteRequestrequest){// 验证所有分片已上传// 合并分片// 生成最终文件元数据// 清理临时数据returnResponseEntity.ok(newUploadCompleteResponse(request.getFileName(),finalPath));}// 其他端点:暂停、恢复、取消上传等}publicclassCryptoUtils{privatestaticfinalStringAES_ALGORITHM="AES/CBC/PKCS5Padding";privatestaticfinalStringSM4_ALGORITHM="SM4/CBC/PKCS5Padding";publicstaticbyte[]encrypt(byte[]data,Stringalgorithm,Stringkey)throwsNoSuchAlgorithmException,NoSuchPaddingException,InvalidKeyException,IllegalBlockSizeException,BadPaddingException,InvalidAlgorithmParameterException{Ciphercipher=Cipher.getInstance(getCipherAlgorithm(algorithm));SecretKeySpeckeySpec=newSecretKeySpec(generateKey(algorithm,key),algorithm);IvParameterSpeciv=generateIv(algorithm);cipher.init(Cipher.ENCRYPT_MODE,keySpec,iv);returncipher.doFinal(data);}publicstaticbyte[]decrypt(byte[]encryptedData,Stringalgorithm,Stringkey)throwsNoSuchAlgorithmException,NoSuchPaddingException,InvalidKeyException,IllegalBlockSizeException,BadPaddingException,InvalidAlgorithmParameterException{Ciphercipher=Cipher.getInstance(getCipherAlgorithm(algorithm));SecretKeySpeckeySpec=newSecretKeySpec(generateKey(algorithm,key),algorithm);IvParameterSpeciv=generateIv(algorithm);cipher.init(Cipher.DECRYPT_MODE,keySpec,iv);returncipher.doFinal(encryptedData);}privatestaticStringgetCipherAlgorithm(Stringalgorithm){returnalgorithm.equalsIgnoreCase("SM4")?SM4_ALGORITHM:AES_ALGORITHM;}privatestaticbyte[]generateKey(Stringalgorithm,Stringkey){// 密钥生成逻辑}privatestaticIvParameterSpecgenerateIv(Stringalgorithm){// IV生成逻辑}}我们设计了三级恢复机制确保断点续传的可靠性:
采用虚拟文件系统(VFS)技术维护原始目录结构:
// 数据结构示例 { "uploadId": "xyz123", "root": { "name": "project", "type": "directory", "children": [ { "name": "src", "type": "directory", "children": [ { "name": "main.js", "type": "file", "size": 1024, "chunks": [{"id":1,"status":"completed"},...] } ] } ] } }第一阶段(2周):核心传输模块开发
第二阶段(3周):高级功能实现
第三阶段(1周):系统集成与测试
基于贵公司年项目量和预算考虑,我们提供以下授权方案:
买断授权(98万元):
配套服务:
随方案附上我司与央企合作的项目证明材料(合同扫描件、软件著作权证书等),可供贵公司审阅。
本方案完全满足贵公司对大文件传输系统的所有技术要求,且在稳定性、安全性和兼容性方面有显著优势。我们期待与贵公司合作,共同打造行业领先的文件传输解决方案。
导入到Eclipse:点击查看教程
导入到IDEA:点击查看教程
springboot统一配置:点击查看教程
NOSQL示例不需要任何配置,可以直接访问测试
选择对应的数据表脚本,这里以SQL为例
up6/upload/年/月/日/guid/filename
支持离线保存文件进度,在关闭浏览器,刷新浏览器后进行不丢失,仍然能够继续上传
支持上传文件夹并保留层级结构,同样支持进度信息离线保存,刷新页面,关闭页面,重启系统不丢失上传进度。
支持文件批量下载
文件下载支持离线保存进度信息,刷新页面,关闭页面,重启系统均不会丢失进度信息。
支持下载文件夹,并保留层级结构,不打包,不占用服务器资源。
点击下载完整示例