Windows Azure的:存储客户端异常未处理
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26-09-2019 - |
题
我写上传大文件到斑点使用块代码...当我测试了它,它给了我一个StorageClientException
它表示:其中一个请求输入是超出范围
。我得到这个的例外强>在此行中的代码:
blob.PutBlock(block, ms, null);
下面是我的代码:
protected void ButUploadBlocks_click(object sender, EventArgs e)
{
// store upladed file as a blob storage
if (uplFileUpload.HasFile)
{
name = uplFileUpload.FileName;
byte[] byteArray = uplFileUpload.FileBytes;
Int64 contentLength = byteArray.Length;
int numBytesPerBlock = 250 *1024; // 250KB per block
int blocksCount = (int)Math.Ceiling((double)contentLength / numBytesPerBlock); // number of blocks
MemoryStream ms ;
List<string>BlockIds = new List<string>();
string block;
int offset = 0;
// get refernce to the cloud blob container
CloudBlobContainer blobContainer = cloudBlobClient.GetContainerReference("documents");
// set the name for the uploading files
string UploadDocName = name;
// get the blob reference and set the metadata properties
CloudBlockBlob blob = blobContainer.GetBlockBlobReference(UploadDocName);
blob.Properties.ContentType = uplFileUpload.PostedFile.ContentType;
for (int i = 0; i < blocksCount; i++, offset = offset + numBytesPerBlock)
{
block = Convert.ToBase64String(BitConverter.GetBytes(i));
ms = new MemoryStream();
ms.Write(byteArray, offset, numBytesPerBlock);
blob.PutBlock(block, ms, null);
BlockIds.Add(block);
}
blob.PutBlockList(BlockIds);
blob.Metadata["FILETYPE"] = "text";
}
}
谁能告诉我该怎么解决呢?
解决方案
我认为你必须做ms.Position = 0上传之前获得流回到起点。 (否则,可能PutBlock试图从流读取并且已经发现它在末端。)
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