OSS的使用

谁践踏了优雅 2023-10-11 13:59 7阅读 0赞

*  1.引入maven依赖
 *  2.上传文件
 *  3.断点上传

## 1.引入maven依赖 ##

<dependency>
                <groupId>com.aliyun.oss</groupId>
                <artifactId>aliyun-sdk-oss</artifactId>
                <version>2.2.1</version>
            </dependency>

## 2.上传文件 ##

/**
         * 上传文件到oss,返回上传oss之后的地址
         * @param file
         * @return
         */
        public static String upLoadFIle2Oss(MultipartFile file,String fileDir){
        
            String ossUrl=null;
                try {
        
                    OSSClientUtil ossClient = new OSSClientUtil();
                    String OssImageName = uploadImg2Oss(file,fileDir);
                    ossUrl = ossClient.getImgUrl(OssImageName,fileDir);
                }catch (Exception e){
        
                    log.error(e.getMessage());
    
                }
            
    
    
            return ossUrl;
        }
     public String uploadImg2Oss(MultipartFile file,String fileDir){
        
            String originalFilename = file.getOriginalFilename();
            String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
            Random random = new Random();
            String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
            InputStream inputStream = null;
            try {
        
                inputStream = file.getInputStream();
                this.uploadFile2OSS(inputStream, name,fileDir);
            } catch (IOException e) {
        
                e.printStackTrace();
            }
    
            return name;
        }
    /**
         * 获得图片路径
         *
         * @param fileUrl
         * @return
         */
        public String getImgUrl(String fileUrl,String fileDir) {
        
            System.out.println(fileUrl);
            if (!StringUtils.isEmpty(fileUrl)) {
        
                String[] split = fileUrl.split("/");
                return this.getUrl(fileDir + split[split.length - 1]);
            }
            return null;
        }
          /**
         * 上传到OSS服务器 如果同名文件会覆盖服务器上的
         *
         * @param instream
         *            文件流
         * @param fileName
         *            文件名称 包括后缀名
         * @return 出错返回"" ,唯一MD5数字签名
         */
        public String uploadFile2OSS(InputStream instream, String fileName,String fileDir) {
        
            String ret = "";
            try {
        
                // 创建上传Object的Metadata
                ObjectMetadata objectMetadata = new ObjectMetadata();
                objectMetadata.setContentLength(instream.available());
                objectMetadata.setCacheControl("no-cache");
                objectMetadata.setHeader("Pragma", "no-cache");
                objectMetadata.setContentType(getContentType(fileName.substring(fileName.lastIndexOf("."))));
                objectMetadata.setContentDisposition("inline;filename=" + fileName);
                // 上传文件
                PutObjectResult putResult = ossClient.putObject(bucketName, fileDir + fileName, instream, objectMetadata);
                ret = putResult.getETag();
            } catch (IOException e) {
        
                logger.error(e.getMessage(), e);
            } finally {
        
                try {
        
                    if (instream != null) {
        
                        instream.close();
                    }
                } catch (IOException e) {
        
                    e.printStackTrace();
                }
            }
            return ret;
        }

## 3.断点上传 ##

/**
         * 上传视频文件到oss,返回上传oss之后的地址
         * @param file
         * @return
         */
        public static String upLoadVideo2Oss(MultipartFile file,String dir){
        
            String ossUrl=null;
                try {
        
                    OSSClientUtil ossClient = new OSSClientUtil();
                    File newFile=MultipartFile2File( file);
                    String OssImageName = ossClient.uploadVideo2OSS(newFile.getPath(),newFile.getName(),dir);
                    ossUrl = ossClient.getUrl(OssImageName);
                    if(ossUrl!=null&&!"".equals(ossUrl)){
        
                        newFile.delete();
                    }
                }catch (Exception e){
        
                    log.error(e.getMessage());
                }
            
    
            return ossUrl;
        }
        public class OSSClientUtil {
        
    public static final Logger logger = LoggerFactory.getLogger(OSSClientUtil.class);
        // endpoint
        // endpoint以杭州为例，其它region请按实际情况填写
        private static final String endpoint = "http://oss-cn-hangzhou.aliyuncs.com";
        // accessKey
        private static final String accessKeyId = "LTAIBV6mlkfxp7l";
        private static final String accessKeySecret = "TyyLM1HzNdujedZ6dmF9A2xshzScjUS";
        // 空间
        private String bucketName = "bqkj";
        //用户
        //头像
        private static String USER_PROFILE_IMAGE = "bqkj/campusGang/userInfo/profileImage/";
        //内容管理
        //附件
        public static String CONTENT_MANAGE_ACCESSORY = "bqkj/campusGang/ContentManagement/Accessory/";
        //富文本内容
        public static String CONTENT_MANAGE_RICH_TEXT = "bqkj/campusGang/ContentManagement/RichTextContent/";
        //缩略图
        public static String CONTENT_MANAGE_THUMBNAIL = "bqkj/campusGang/ContentManagement/Accessory/";
        //留言
        //缩略图
        public static String LEAVE_MSG_IMAGE = "bqkj/campusGang/leaveMsg/image/";
        public static String INVOICE_OCR = "bqkj/campusGang/invoice/ocr/";
        private OSSClient ossClient;
    
        public OSSClientUtil() {
        
            ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
        }
    
        /**
         * 初始化
         */
        public void init() {
        
            ossClient = new OSSClient(endpoint, accessKeyId, accessKeySecret);
        }
    
        /**
         * 销毁
         */
        public void destory() {
        
            ossClient.shutdown();
        }
    
        /**
         * 上传图片
         *
         * @param url
         */
        public void uploadImg2Oss(String url,String fileDir){
        
            File fileOnServer = new File(url);
            FileInputStream fin;
            try {
        
                fin = new FileInputStream(fileOnServer);
                String[] split = url.split("/");
                this.uploadFile2OSS(fin, split[split.length - 1],fileDir);
            } catch (FileNotFoundException e) {
        
                e.printStackTrace();
            }
    
    
        }
    
        public String uploadImg2Oss(MultipartFile file,String fileDir){
        
            String originalFilename = file.getOriginalFilename();
            String substring = originalFilename.substring(originalFilename.lastIndexOf(".")).toLowerCase();
            Random random = new Random();
            String name = random.nextInt(10000) + System.currentTimeMillis() + substring;
            InputStream inputStream = null;
            try {
        
                inputStream = file.getInputStream();
                this.uploadFile2OSS(inputStream, name,fileDir);
            } catch (IOException e) {
        
                e.printStackTrace();
            }
    
            return name;
        }
    
        /**
         * 获得图片路径
         *
         * @param fileUrl
         * @return
         */
        public String getImgUrl(String fileUrl,String fileDir) {
        
            System.out.println(fileUrl);
            if (!StringUtils.isEmpty(fileUrl)) {
        
                String[] split = fileUrl.split("/");
                return this.getUrl(fileDir + split[split.length - 1]);
            }
            return null;
        }
    
        /**
         * 上传到OSS服务器 如果同名文件会覆盖服务器上的
         *
         * @param instream
         *            文件流
         * @param fileName
         *            文件名称 包括后缀名
         * @return 出错返回"" ,唯一MD5数字签名
         */
        public String uploadFile2OSS(InputStream instream, String fileName,String fileDir) {
        
            String ret = "";
            try {
        
                // 创建上传Object的Metadata
                ObjectMetadata objectMetadata = new ObjectMetadata();
                objectMetadata.setContentLength(instream.available());
                objectMetadata.setCacheControl("no-cache");
                objectMetadata.setHeader("Pragma", "no-cache");
                objectMetadata.setContentType(getContentType(fileName.substring(fileName.lastIndexOf("."))));
                objectMetadata.setContentDisposition("inline;filename=" + fileName);
                // 上传文件
                PutObjectResult putResult = ossClient.putObject(bucketName, fileDir + fileName, instream, objectMetadata);
                ret = putResult.getETag();
            } catch (IOException e) {
        
                logger.error(e.getMessage(), e);
            } finally {
        
                try {
        
                    if (instream != null) {
        
                        instream.close();
                    }
                } catch (IOException e) {
        
                    e.printStackTrace();
                }
            }
            return ret;
        }
    
        /**
         * 断点上传视频
         * @param filePath
         * @param fileName
         * @return
         */
        public String uploadVideo2OSS(String filePath, String fileName,String dir) {
        
            String ret = "";
            try {
        
                fileName=dir+new Date().getTime()+fileName;
                UploadFileRequest uploadFileRequest = new UploadFileRequest(bucketName, fileName);
                // The local file to upload---it must exist.
                uploadFileRequest.setUploadFile(filePath);
                // Sets the concurrent upload task number to 5.
                uploadFileRequest.setTaskNum(6);
                // Sets the part size to 1MB.
                uploadFileRequest.setPartSize(1024 * 1024 * 1);
                // Enables the checkpoint file. By default it's off.
                uploadFileRequest.setEnableCheckpoint(true);
    
                UploadFileResult uploadResult = ossClient.uploadFile(uploadFileRequest);
    
                CompleteMultipartUploadResult multipartUploadResult =
                        uploadResult.getMultipartUploadResult();
                ret=fileName;
                System.out.println(multipartUploadResult.getETag());
            }  catch (OSSException oe) {
        
                System.out.println("Caught an OSSException, which means your request made it to OSS, "
                        + "but was rejected with an error response for some reason.");
                System.out.println("Error Message: " + oe.getErrorMessage());
                System.out.println("Error Code:       " + oe.getErrorCode());
                System.out.println("Request ID:      " + oe.getRequestId());
                System.out.println("Host ID:           " + oe.getHostId());
            } catch (ClientException ce) {
        
                System.out.println("Caught an ClientException, which means the client encountered "
                        + "a serious internal problem while trying to communicate with OSS, "
                        + "such as not being able to access the network.");
                System.out.println("Error Message: " + ce.getMessage());
            } catch (Throwable e) {
        
                e.printStackTrace();
            } finally {
        
                ossClient.shutdown();
            }
            return ret;
        }
    
        /**
         * 删除oss的文件，传参是bqkj/campusGang/userInfo/profileImage/1590730407032.jpg
         * @param filePath
         * @return
         */
        public boolean deleteOssFile(String filePath) {
        
            boolean exist = ossClient.doesObjectExist(bucketName, filePath);
            if (!exist) {
        
                logger.error("文件不存在,filePath={}", filePath);
                return false;
            }
            logger.info("删除文件,filePath={}", filePath);
            ossClient.deleteObject(bucketName, filePath);
            ossClient.shutdown();
            return true;
        }
    
        /**
         * Description: 判断OSS服务文件上传时文件的contentType
         * @param filenameExtension 文件后缀
         * @return String
         */
        public static String getContentType(String filenameExtension) {
        
            if (filenameExtension.equalsIgnoreCase(".bmp")) {
        
                return "image/bmp";
            }
            if (filenameExtension.equalsIgnoreCase(".gif")) {
        
                return "image/gif";
            }
            if (filenameExtension.equalsIgnoreCase(".jpeg") || filenameExtension.equalsIgnoreCase(".jpg")
                    || filenameExtension.equalsIgnoreCase(".png")) {
        
                return "image/jpeg";
            }
            if (filenameExtension.equalsIgnoreCase(".html")) {
        
                return "text/html";
            }
            if (filenameExtension.equalsIgnoreCase(".txt")) {
        
                return "text/plain";
            }
            if (filenameExtension.equalsIgnoreCase(".vsd")) {
        
                return "application/vnd.visio";
            }
            if (filenameExtension.equalsIgnoreCase(".pptx") || filenameExtension.equalsIgnoreCase(".ppt")) {
        
                return "application/vnd.ms-powerpoint";
            }
            if (filenameExtension.equalsIgnoreCase(".docx") || filenameExtension.equalsIgnoreCase(".doc")) {
        
                return "application/msword";
            }
            if (filenameExtension.equalsIgnoreCase(".xml")) {
        
                return "text/xml";
            }
            if (filenameExtension.equalsIgnoreCase(".pdf")) {
        
                return "application/pdf";
            }
            return "image/jpeg";
        }
    
        /**
         * 获得url链接
         *
         * @param key
         * @return
         */
        public String getUrl(String key) {
        
            // 设置URL过期时间为10年 3600l* 1000*24*365*10
    
            Date expiration = new Date(System.currentTimeMillis() + 3600L * 1000 * 24 * 365 * 10);
            // 生成URL
            URL url = ossClient.generatePresignedUrl(bucketName, key, expiration);
            if (url != null) {
        
                return url.toString();
            }
            return null;
        }
    
        }