Пример #1
0
 /// <summary>
 /// 删除指定的文件
 /// </summary>
 /// <param name="key">待删除的文件名称</param>
 /// <param name="bucketName">文件所在存储空间的名称</param>
 /// <param name="config">OSS地址的配置信息</param>
 public static void DeleteObject(string key, string bucketName = "", OssConfig config = null)
 {
     if (bucketName == "")
     {
         bucketName = _bucketName;
     }
     OssClientProvider.GetOssClient(config).DeleteObject(bucketName, key);
 }
Пример #2
0
 /// <summary>
 /// 异步上传指定的文件到指定的OSS的存储空间
 /// </summary>
 /// <param name="key">文件的在OSS上保存的名称</param>
 /// <param name="content">文件流</param>
 /// <param name="bucketName">指定的存储空间名称</param>
 /// <param name="config">OSS地址的配置信息</param>
 /// <returns></returns>
 public static string AsyncPutObject(string key, Stream content, string bucketName = "", OssConfig config = null)
 {
     if (bucketName == "")
     {
         bucketName = _bucketName;
     }
     key = _preFolder + key;
     OssClientProvider.GetOssClient(config).BeginPutObject(bucketName, key, content, null, new object());
     return(key);
 }
Пример #3
0
        /// <summary>
        /// 获取Referer白名单,可以设置referer,用于防盗链
        /// </summary>
        /// <param name="bucketName"></param>
        /// <param name="config"></param>
        /// <returns></returns>
        public static string[] GetBucketReferer(string bucketName = "", OssConfig config = null)
        {
            if (bucketName == "")
            {
                bucketName = _bucketName;
            }
            var client = OssClientProvider.GetOssClient(config);
            var rc     = client.GetBucketReferer(bucketName);

            return(rc.RefererList.Referers);
        }
Пример #4
0
        /// <summary>
        /// 上传指定的文件到指定的OSS的存储空间并且带MD5校验
        /// </summary>
        /// <param name="key">文件的在OSS上保存的名称</param>
        /// <param name="content">文件流</param>
        /// <param name="bucketName">指定的存储空间名称</param>
        /// <param name="config">OSS地址的配置信息</param>
        /// <returns></returns>
        public static string PutObjectMD5(string key, Stream content, string bucketName = "", OssConfig config = null)
        {
            if (bucketName == "")
            {
                bucketName = _bucketName;
            }
            var md5 = OssUtils.ComputeContentMd5(content, content.Length);

            key = _preFolder + key;
            OssClientProvider.GetOssClient(config).PutObject(bucketName, key, content, new ObjectMetadata()
            {
                ContentMd5 = md5
            });
            return(key);
        }
Пример #5
0
        /// <summary>
        /// 分片上传
        /// </summary>
        /// <param name="key"></param>
        /// <param name="content"></param>
        /// <param name="bucketName"></param>
        /// <param name="config"></param>
        /// <returns></returns>
        public static string UploadMultipart(string key, Stream content, string bucketName = "", OssConfig config = null)
        {
            if (bucketName == "")
            {
                bucketName = _bucketName;
            }
            key = _preFolder + key;
            var client = OssClientProvider.GetOssClient(config);
            //初始化Multipart Upload
            var request = new InitiateMultipartUploadRequest(bucketName, key); //指定上传文件的名字和所属存储空间
            var result  = client.InitiateMultipartUpload(request);             //返回结果中含有UploadId ,它是区分分片上传事件的唯一标识

            //Upload Part本地上传
            var fileSize  = content.Length;
            var partCount = fileSize / partSize;

            if (fileSize % partSize != 0)
            {
                partCount++;
            }
            var partETags = new List <PartETag>();

            for (var i = 0; i < partCount; i++)
            {
                var skipBytes = (long)partSize * i;
                content.Seek(skipBytes, 0);
                var size        = (partSize < fileSize - skipBytes) ? partSize : fileSize - partSize;//每片上传的文件大小,最后一片大小处理
                var partRequest = new UploadPartRequest(bucketName, key, result.UploadId)
                {
                    InputStream = content, PartSize = size, PartNumber = i + 1
                };
                var partResult = client.UploadPart(partRequest);
                partETags.Add(partResult.PartETag);
            }

            //完成分片上传:OSS收到用户提交的Part列表后,会逐一验证每个数据Part的有效性,当所有的数据Part验证通过后,OSS会将这些part组合成一个完整的文件
            var completeMultipartUploadRequest =
                new CompleteMultipartUploadRequest(bucketName, key, result.UploadId);

            foreach (var partETag in partETags)
            {
                completeMultipartUploadRequest.PartETags.Add(partETag);
            }
            client.CompleteMultipartUpload(completeMultipartUploadRequest);

            return(key);
        }
Пример #6
0
        /// <summary>
        ///  从指定的OSS存储空间中获取指定的文件
        /// </summary>
        /// <param name="key">文件的在OSS上保存的名称</param>
        /// <param name="fileToDownload">本地存储下载文件的目录</param>
        /// <param name="bucketName">指定的存储空间名称</param>
        /// <param name="config">OSS地址的配置信息</param>
        public static void GetObject(string key, string fileToDownload, string bucketName = "", OssConfig config = null)
        {
            if (bucketName == "")
            {
                bucketName = _bucketName;
            }
            var obj = OssClientProvider.GetOssClient(config).GetObject(bucketName, key);

            using (var requestStream = obj.Content)
            {
                var buf = new byte[1024];
                using (var fs = File.Open(fileToDownload, FileMode.OpenOrCreate))
                {
                    var len = 0;
                    while ((len = requestStream.Read(buf, 0, 1024)) != 0)
                    {
                        fs.Write(buf, 0, len);
                    }
                }
            }
        }