public static string GenerateBarCode(string id)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
qrCodeEncoder.QRCodeScale = 4;
// qrCodeEncoder.QRCodeVersion = 4;
qrCodeEncoder.QRCodeVersion = 0;
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
//System.Drawing.Image image = qrCodeEncoder.Encode("4408810820 深圳－广州 小江");
global::System.Drawing.Image image = qrCodeEncoder.Encode(id);
string filename = Guid.NewGuid().ToString() + ".jpg";
string fileMonthPath = System.Web.HttpContext.Current.Server.MapPath(@"~\UploadFile") + "\\" + DateTime.Now.ToString("yyyyMM");
if (!System.IO.Directory.Exists(fileMonthPath))
{
System.IO.Directory.CreateDirectory(fileMonthPath);
}
string filepath = fileMonthPath + "\\" + filename;
global::System.IO.FileStream fs = new global::System.IO.FileStream(filepath, global::System.IO.FileMode.OpenOrCreate, global::System.IO.FileAccess.Write);
image.Save(fs, global::System.Drawing.Imaging.ImageFormat.Jpeg);
fs.Close();
image.Dispose();
return(@"../../UploadFile/" + DateTime.Now.ToString("yyyyMM") + "/" + filename);
}
public static byte[] GetBytes(global::System.Drawing.Image image)
{
MemoryStream stream = new MemoryStream();
image.Save(stream, ImageFormat.Jpeg);
return(stream.ToArray());
}
/// <summary>
/// 直接將 System.Drawing.Image 轉為 Stream
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
public static Stream ToStream(this global::System.Drawing.Image image)
{
var ms = new MemoryStream();
image.Save(ms, ImageFormat.Jpeg);
ms.Position = 0;
return(ms);
}
/// <summary>
/// Saves the encoded image to a stream.
/// </summary>
/// <param name="image">The image to save</param>
/// <param name="quality">The quality desired (a value between 1 and 100).</param>
/// <param name="format">The <see cref="T:System.Drawing.Imaging.ImageFormat" /> to save the image as.</param>
/// <returns></returns>
public static Stream ToStream(global::System.Drawing.Image image, long quality, ImageFormat format)
{
MemoryStream stream = new MemoryStream();
ImageCodecInfo encoder = null;
foreach (ImageCodecInfo info2 in ImageCodecInfo.GetImageEncoders())
{
if (info2.MimeType == "image/jpeg")
{
encoder = info2;
}
}
EncoderParameter parameter = new EncoderParameter(Encoder.Quality, quality);
EncoderParameters encoderParams = new EncoderParameters(1);
encoderParams.Param[0] = parameter;
image.Save(stream, encoder, encoderParams);
return(stream);
}
