腾讯云上传

喜欢ヅ旅行 2022-05-13 06:52 402阅读 0赞

参考[腾讯云官方SDK文档][SDK]  
![TCent Cloud upload所需jar包][TCent Cloud upload_jar]  
uploadTest.java的servlet文件：

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            InputStream is=null;
            FileOutputStream fos=null;
            FileItemFactory factory=new DiskFileItemFactory();
            ServletFileUpload upload=new ServletFileUpload(factory);
            upload.setHeaderEncoding("UTF-8");
            try {
                List<FileItem> list=upload.parseRequest(request);
                for(FileItem li:list) {
                    //判断是否文本标签 
                    if(li.isFormField()) {
                        String field=li.getFieldName();//获取标签名
                        String value=li.getString();//获取标签值
                        System.out.println(field+":"+value);
                    }else {
                        //文件输入流，读取数据
                        is=li.getInputStream();
                        String filename=li.getName();//获取上传文件名
    
                        // 1 初始化用户身份信息(secretId, secretKey)
                        COSCredentials cred = new BasicCOSCredentials("AKIDQmwvjMt7nLjvwof2MURCrLenmZCk7MND", "oQtCPRHSUL7qTvAII8f5JMDvIfvzr9JI");
                        // 2 设置bucket的区域, COS地域的简称请参照 https://cloud.tencent.com/document/product/436/6224
                        ClientConfig clientConfig = new ClientConfig(new Region("ap-beijing"));
                        // 3 生成cos客户端
                        COSClient cosclient = new COSClient(cred, clientConfig);
                        // bucket的命名规则为{name}-{appid} ，此处填写的存储桶名称必须为此格式
                        String bucketName = "fcmusic-1257232059";
    
                        ObjectMetadata objectMetadata = new ObjectMetadata();
                        // 设置输入流长度为 500
                        objectMetadata.setContentLength(li.getSize());  
                        // 设置 Content type, 默认是 application/octet-stream
                        PutObjectResult putObjectResult = cosclient.putObject(bucketName, filename, is, objectMetadata);
    
                        //生成公有无时间限制的链接
                        GeneratePresignedUrlRequest req =new GeneratePresignedUrlRequest(bucketName, filename, HttpMethodName.GET);
                        URL url = cosclient.generatePresignedUrl(req);
                        System.out.println(url.toString());
                        cosclient.shutdown();
    
                        //生成不会重复的文件名,生成32位字符串，保证上传文件名不重复
                        /*UUID.randomUUID().toString();*/
                    }
                }
            } catch (FileUploadException e) {
                e.printStackTrace();
            } catch (Exception e) {
                e.printStackTrace();
            }   finally {
                if(is!=null) {
       is.close();}
                if(fos!=null) {fos.close();}
            }
        }

[SDK]: https://cloud.tencent.com/document/product/436/10199
[TCent Cloud upload_jar]: /images/20220513/7ff47f6ce39c470dafd8be78dfdd20eb.png