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[英]Exception of type 'System.OutOfMemoryException' was thrown while uploading Blob
[英]'System.OutOfMemoryException' was thrown while uploading large file
當我上傳大於500 MB的文件時,我收到以下錯誤
“拋出了'System.OutOfMemoryException'類型的異常。”
我的代碼如下所示:
public readonly string Filename, ContentType;
public readonly int Size;
public readonly byte[] Bytes;
public FileHolder(HttpPostedFile file)
{
Filename = Path.GetFileName(file.FileName);
ContentType = GetContentType(file.ContentType, Filename);
Size = file.ContentLength;
Bytes = new byte[file.InputStream.Length]; //Here i get error
file.InputStream.Read(Bytes, 0, Size);
}
不要試圖一次讀取整個流。 無論如何,你不會同時獲得整個流。
創建一個合理大小的緩沖區,然后一次讀取一個塊:
byte[] buffer = new byte[8192];
int offset = 0;
int left = Size;
while (left > 0) {
int len = file.InputStream.Read(buffer, 0, Math.Min(buffer.Length, left));
left -= len;
// here you should store the first "len" bytes of the buffer
offset += len;
}
您不應將整個文件加載到字節數組中。 相反,您可以直接從輸入流處理文件。
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