private static void Main(string[] args)
{
BosClient client = SampleUtil.GetSampleBosClient();
const string bucketName = "sample-bucket-multi-upload1"; //示例Bucket名称
// 初始化：创建示例Bucket
client.CreateBucket(bucketName); //指定Bucket名称
string objectKey = "sample";
// 1.开始Multipart Upload
InitiateMultipartUploadRequest initiateMultipartUploadRequest =
new InitiateMultipartUploadRequest()
{
BucketName = bucketName, Key = objectKey
};
InitiateMultipartUploadResponse initiateMultipartUploadResponse =
client.InitiateMultipartUpload(initiateMultipartUploadRequest);
// 2.获取Bucket内的Multipart Upload
ListMultipartUploadsRequest listMultipartUploadsRequest =
new ListMultipartUploadsRequest()
{
BucketName = bucketName
};
ListMultipartUploadsResponse listMultipartUploadsResponse =
client.ListMultipartUploads(listMultipartUploadsRequest);
foreach (MultipartUploadSummary multipartUpload in listMultipartUploadsResponse.Uploads)
{
Console.WriteLine("Key: " + multipartUpload.Key + " UploadId: " + multipartUpload.UploadId);
}
// 3.分块上传，首先设置每块为 5Mb
long partSize = 1024 * 1024 * 5L;
FileInfo partFile = new FileInfo("d:\\lzb\\sample");
// 计算分块数目
int partCount = (int)(partFile.Length / partSize);
if (partFile.Length % partSize != 0)
{
partCount++;
}
// 新建一个List保存每个分块上传后的ETag和PartNumber
List <PartETag> partETags = new List <PartETag>();
for (int i = 0; i < partCount; i++)
{
// 获取文件流
Stream stream = partFile.OpenRead();
// 跳到每个分块的开头
long skipBytes = partSize * i;
stream.Seek(skipBytes, SeekOrigin.Begin);
// 计算每个分块的大小
long size = Math.Min(partSize, partFile.Length - skipBytes);
// 创建UploadPartRequest，上传分块
UploadPartRequest uploadPartRequest = new UploadPartRequest();
uploadPartRequest.BucketName = bucketName;
uploadPartRequest.Key = objectKey;
uploadPartRequest.UploadId = initiateMultipartUploadResponse.UploadId;
uploadPartRequest.InputStream = stream;
uploadPartRequest.PartSize = size;
uploadPartRequest.PartNumber = i + 1;
UploadPartResponse uploadPartResponse = client.UploadPart(uploadPartRequest);
// 将返回的PartETag保存到List中。
partETags.Add(new PartETag()
{
ETag = uploadPartResponse.ETag,
PartNumber = uploadPartResponse.PartNumber
});
// 关闭文件
stream.Close();
}
// 4. 获取UploadId的所有Upload Part
ListPartsRequest listPartsRequest = new ListPartsRequest()
{
BucketName = bucketName,
Key = objectKey,
UploadId = initiateMultipartUploadResponse.UploadId,
};
// 获取上传的所有Part信息
ListPartsResponse listPartsResponse = client.ListParts(listPartsRequest);
// 遍历所有Part
foreach (PartSummary part in listPartsResponse.Parts)
{
Console.WriteLine("PartNumber: " + part.PartNumber + " ETag: " + part.ETag);
}
// 5. 完成分块上传
CompleteMultipartUploadRequest completeMultipartUploadRequest =
new CompleteMultipartUploadRequest()
{
BucketName = bucketName,
Key = objectKey,
UploadId = initiateMultipartUploadResponse.UploadId,
PartETags = partETags
};
CompleteMultipartUploadResponse completeMultipartUploadResponse =
client.CompleteMultipartUpload(completeMultipartUploadRequest);
Console.WriteLine(completeMultipartUploadResponse.ETag);
Console.ReadKey();
}