public bool uploadFile(String filePath, String bucketName, String path, System.Windows.Forms.ToolStripProgressBar prog)
{
Stream fileStream = null;
try
{
prog.Value = 0;
FileInfo fileInfo = new FileInfo(filePath);
String objectKey = path + fileInfo.Name;
// 开始Multipart Upload
InitiateMultipartUploadRequest initiateMultipartUploadRequest =
new InitiateMultipartUploadRequest()
{
BucketName = bucketName, Key = objectKey
};
BosClient client = GenerateBosClient();
InitiateMultipartUploadResponse initiateMultipartUploadResponse = client.InitiateMultipartUpload(initiateMultipartUploadRequest);
String fileName = fileInfo.Name;
long totalSize = fileInfo.Length;
prog.Maximum = (int)totalSize;
long partSize = 1024 * 1024 * 20L;
if (totalSize < this.comparisonPartSize)
{
partSize = 1024 * 1024 * 1L;
}
int partCount = (int)(totalSize / partSize);
if (totalSize % partSize != 0)
{
partCount = partCount + 1;
}
// byte[] by = new byte[partSize];
List <PartETag> partETags = new List <PartETag>();
for (int i = 0; i < partCount; i++)
{
// 获取文件流
fileStream = fileInfo.OpenRead();
// 计算每个分片跳过字节数
long skipBytes = partSize * i;
// 计算每个分块的大小
long size = Math.Min(partSize, fileInfo.Length - skipBytes);
byte[] buffer = new byte[size];
//跳到上次读取的开头
fileStream.Seek(skipBytes, SeekOrigin.Begin);
// fileStream.ReadAsync(buffer, 0, (int)size);
//分片的流
// MemoryStream ms = new MemoryStream(buffer);
// 创建UploadPartRequest，上传分块
UploadPartRequest uploadPartRequest = new UploadPartRequest();
uploadPartRequest.BucketName = bucketName;
uploadPartRequest.Key = path + fileInfo.Name;
uploadPartRequest.UploadId = initiateMultipartUploadResponse.UploadId;
uploadPartRequest.InputStream = fileStream;
uploadPartRequest.PartSize = size;
uploadPartRequest.PartNumber = i + 1;
UploadPartResponse uploadPartResponse = client.UploadPart(uploadPartRequest);
String eTag = uploadPartResponse.ETag;
while (eTag == null)
{
eTag = uploadPartResponse.ETag;
}
//标识上传成功
// 将返回的PartETag保存到List中。
partETags.Add(new PartETag()
{
ETag = uploadPartResponse.ETag,
PartNumber = uploadPartResponse.PartNumber
});
System.Windows.Forms.Application.DoEvents();
if (prog != null)
{
prog.Value = prog.Value + (int)size;
}
fileStream.Close();
}
// 获取UploadId的所有Upload Part
ListPartsRequest listPartsRequest = new ListPartsRequest()
{
BucketName = bucketName,
Key = objectKey,
UploadId = initiateMultipartUploadResponse.UploadId,
};
// 完成分块上传
CompleteMultipartUploadRequest completeMultipartUploadRequest =
new CompleteMultipartUploadRequest()
{
BucketName = bucketName,
Key = objectKey,
UploadId = initiateMultipartUploadResponse.UploadId,
PartETags = partETags
};
CompleteMultipartUploadResponse completeMultipartUploadResponse =
client.CompleteMultipartUpload(completeMultipartUploadRequest);
return(true);
}
catch (BceServiceException)
{
throw;
}
catch (BceClientException)
{
throw;
}
finally
{
if (fileStream != null)
{
// 关闭文件
fileStream.Close();
fileStream = null;
}
}
}
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();
}
public static bool UploadFile(this BosClient bosClient, BOSMultipartUploadRequest bosUploadRequest, IProgress <int> onProgressPercentChanged)
{
Debug.Assert(bosUploadRequest.RequestInfo.PartSize > 0);
var filePath = bosUploadRequest.RequestInfo.FilePath;
if (!File.Exists(filePath))
{
return(false);
}
var fileInfo = new FileInfo(filePath);
long partSize = bosUploadRequest.RequestInfo.PartSize;
int parts = (int)(fileInfo.Length / partSize);
if (fileInfo.Length % partSize != 0)
{
parts += 1;
}
if (bosUploadRequest.RequestInfo.PartETags == null)
{
bosUploadRequest.RequestInfo.PartETags = new List <PartETag>();
}
if (string.IsNullOrEmpty(bosUploadRequest.RequestInfo.UploadId))
{
var initiateMultipartUploadRequest = new InitiateMultipartUploadRequest()
{
BucketName = bosUploadRequest.RequestInfo.Bucket,
Key = bosUploadRequest.RequestInfo.ObjectKey
};
var initiateMultipartUploadResponse = bosClient.InitiateMultipartUpload(initiateMultipartUploadRequest);
bosUploadRequest.RequestInfo.UploadId = initiateMultipartUploadResponse.UploadId;
}
var uploadId = bosUploadRequest.RequestInfo.UploadId;
for (int i = bosUploadRequest.RequestInfo.LastPartNumber; i < parts; ++i)
{
if (bosUploadRequest.PauseCancellationToken.IsCancellationRequested)
{
return(false);
}
if (bosUploadRequest.AbortCancellationToken.IsCancellationRequested)
{
var abortMultipartUploadRequest = new AbortMultipartUploadRequest()
{
BucketName = bosUploadRequest.RequestInfo.Bucket,
Key = bosUploadRequest.RequestInfo.ObjectKey,
UploadId = uploadId,
};
bosClient.AbortMultipartUpload(abortMultipartUploadRequest);
return(false);
}
using (var stream = fileInfo.OpenRead())
{
var skipBytes = partSize * i;
stream.Seek(skipBytes, SeekOrigin.Begin);
onProgressPercentChanged?.Report((int)(((double)skipBytes / fileInfo.Length) * 100));
var actualPartSize = Math.Min(partSize, fileInfo.Length - skipBytes);
var uploadPartRequest = new UploadPartRequest();
uploadPartRequest.BucketName = bosUploadRequest.RequestInfo.Bucket;
uploadPartRequest.Key = bosUploadRequest.RequestInfo.ObjectKey;
uploadPartRequest.UploadId = uploadId;
uploadPartRequest.InputStream = stream;
uploadPartRequest.PartSize = actualPartSize;
uploadPartRequest.PartNumber = i + 1;
var uploadPartResponse = bosClient.UploadPart(uploadPartRequest);
bosUploadRequest.RequestInfo.PartETags.Add(
new PartETag()
{
ETag = uploadPartResponse.ETag,
PartNumber = uploadPartResponse.PartNumber
});
bosUploadRequest.RequestInfo.LastPartNumber = uploadPartResponse.PartNumber;
}
}
var completeMultipartUploadRequest =
new CompleteMultipartUploadRequest()
{
BucketName = bosUploadRequest.RequestInfo.Bucket,
Key = bosUploadRequest.RequestInfo.ObjectKey,
UploadId = uploadId,
PartETags = bosUploadRequest.RequestInfo.PartETags
};
var completeMultipartUploadResponse = bosClient.CompleteMultipartUpload(completeMultipartUploadRequest);
onProgressPercentChanged?.Report(100);
return(completeMultipartUploadResponse != null);
}