關於讀取圖片文件另存問題

using (Image image = Image.FromFile(arrFiles[0]))                            {                                MemoryStream stream = new MemoryStream();                                image.Save(stream, System.Drawing.Imaging.ImageFormat.Png);                                Core.HimallIO.CreateFile(dest, stream, FileCreateType.Create);                            } 

讀取圖片，保存路徑沒有問題，在最後保存的圖片，總是打不開。

其他關鍵代碼

private byte[] StreamToBytes(Stream stream)

{

byte[] buffer = new byte[stream.Length];

stream.Read(buffer, 0, buffer.Length);

stream.Seek(0L, SeekOrigin.Begin);

return buffer;

}

public void CreateFile(string fileName, Stream stream, FileCreateType fileCreateType = FileCreateType.CreateNew)

{

string physicalPath = this.GetPhysicalPath(fileName);

string path = physicalPath.Remove(physicalPath.LastIndexOf("\"));

if (!Directory.Exists(path))

Directory.CreateDirectory(path);

if (fileCreateType == FileCreateType.CreateNew)

{

if (File.Exists(physicalPath))

throw new HimallIOException(IOErrorMsg.FileExist.ToDescription());

FileStream fileStream = new FileStream(physicalPath, FileMode.Create, FileAccess.Write);

byte[] bytes = this.StreamToBytes(stream);

fileStream.Write(bytes, 0, bytes.Length);

fileStream.Close();

}

else

{

FileStream fileStream = new FileStream(physicalPath, FileMode.Create, FileAccess.Write);

byte[] bytes = this.StreamToBytes(stream);

fileStream.Write(bytes, 0, bytes.Length);

fileStream.Close();

}

}

 

試過使用其他辦法保存，比如直接使用Image.Save（string）,這個是可以成功的。

所以出現在steam問題這裡。

仔細研究代碼。。。發現了問題在於steam轉為byte[]的時候裡面代碼全是0，為瞭解決這個問題，加了一行代碼，測試通過，一切OK。