/// <summary>
/// 保存base64文件
/// </summary>
/// <param name="base64"></param>
/// <param name="dir">目录信息</param>
/// <returns></returns>
protected TempFileInfo SaveBase64Image(string base64, IDir dir)
{
if (base64.IsNullOrEmpty())
{
return(new TempFileInfo());
}
Span <byte> span = new Span <byte>(new byte[base64.Length]);
int outLen;
if (!Convert.TryFromBase64String(base64, span, out outLen))
{
return(new TempFileInfo());
}
using var memStream = new MemoryStream(span.ToArray());
using var bitmap = new Bitmap(memStream);
var fileName = $"{Guid.NewGuid()}.jpg";
FileInfo fileInfo = new FileInfo(dir.GetUpFilePathWithSystem(fileName));
using var fileStream = fileInfo.Create();
bitmap.Save(fileStream, System.Drawing.Imaging.ImageFormat.Jpeg);
return(new TempFileInfo
{
ServerDirPath = dir.GetDownFileDir(),
ServerFileName = fileName
});
}
