public static Bitmap GetCode(string str,
ENCODE_MODE em = ENCODE_MODE.BYTE,
ERROR_CORRECTION ec = ERROR_CORRECTION.MIDDLE,
int Version = 0,
int Scale = 4
)
{
try
{
if (String.IsNullOrEmpty(str))
{
throw new Exception("字符串为空");
}
//初始化二维码生成工具
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
qrCodeEncoder.QRCodeEncodeMode = (QRCodeEncoder.ENCODE_MODE)em;
qrCodeEncoder.QRCodeErrorCorrect = (QRCodeEncoder.ERROR_CORRECTION)ec;
qrCodeEncoder.QRCodeVersion = Version;
qrCodeEncoder.QRCodeScale = Scale;
//将字符串生成二维码图片
Bitmap image = qrCodeEncoder.Encode(str, Encoding.UTF8);
return(image);
}
catch (Exception ex)
{
throw ex;
}
}
public QRCodeEncoder()
{
this.qrcodeErrorCorrect = ERROR_CORRECTION.M;
this.qrcodeEncodeMode = ENCODE_MODE.BYTE;
this.qrcodeVersion = 7;
this.qrcodeStructureappendN = 0;
this.qrcodeStructureappendM = 0;
this.qrcodeStructureappendParity = 0;
this.qrcodeStructureappendOriginaldata = "";
this.qrCodeScale = 4;
this.qrCodeBackgroundColor = System.Drawing.Color.White;
this.qrCodeForegroundColor = System.Drawing.Color.Black;
}
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
}
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
}
/// <summary>
/// Constructor
/// </summary>
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
}
/// <summary>
/// Constructor
/// </summary>
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
//QRCODE_DATA_PATH = Environment.CurrentDirectory + @"\" + DATA_PATH;
}
/// <summary>
/// Constructor
/// </summary>
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
//QRCODE_DATA_PATH = Environment.CurrentDirectory + @"\" + DATA_PATH;
}
/// <summary>
/// Constructor
/// </summary>
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
QRCODE_DATA_PATH = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetModules()[0].FullyQualifiedName) + @"\" + DATA_PATH;
}
/// <summary>
/// Constructor
/// </summary>
public QRCodeEncoder()
{
qrcodeErrorCorrect = ERROR_CORRECTION.M;
qrcodeEncodeMode = ENCODE_MODE.BYTE;
qrcodeVersion = 7;
qrcodeStructureappendN = 0;
qrcodeStructureappendM = 0;
qrcodeStructureappendParity = 0;
qrcodeStructureappendOriginaldata = "";
qrCodeScale = 4;
qrCodeBackgroundColor = Color.White;
qrCodeForegroundColor = Color.Black;
QRCODE_DATA_PATH = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetModules()[0].FullyQualifiedName) + @"\" + DATA_PATH;
}
/// <summary>
/// 生成二维码
/// </summary>
/// <param name="text">二维码文本</param>
/// <param name="scale">尺寸</param>
/// <param name="version">版本</param>
/// <param name="mode">编码模式</param>
/// <param name="errorCorrect">错误纠正级别</param>
/// <returns></returns>
public static Image GenerateQRCode(string text, int scale = 5, int version = 0, ENCODE_MODE mode = ENCODE_MODE.BYTE, ERROR_CORRECTION errorCorrect = ERROR_CORRECTION.M)
{
try
{
if (!string.IsNullOrEmpty(text))
{
var qrCoder = new QRCodeEncoder();
qrCoder.QRCodeEncodeMode = EnumHelper.Parse <QRCodeEncoder.ENCODE_MODE>(mode.ToString());
qrCoder.QRCodeScale = 5;
qrCoder.QRCodeVersion = 0;
qrCoder.QRCodeErrorCorrect = EnumHelper.Parse <QRCodeEncoder.ERROR_CORRECTION>(errorCorrect.ToString());
return(Image.FromHbitmap(qrCoder.Encode(text, Encoding.GetEncoding("GB2312")).GetHbitmap()));
}
}
catch { }
return(null);
}
/// 生成二维码
/// </summary>
/// <param name="dir">生成二维码目录</param>
/// <param name="strData">要生成的文字或者数字，支持中文。如： "4408810820 深圳－广州" 或者：4444444444</param>
/// <param name="qrEncoding">三种尺寸：BYTE ，ALPHA_NUMERIC，NUMERIC</param>
/// <param name="level">大小：L M Q H</param>
/// <param name="version">版本：如 8</param>
/// <param name="scale">比例：如 4</param>
/// <returns></returns>
public static string CreateCode_Choose(string dir, string strData, ENCODE_MODE qrEncoding, ERROR_CORRECTION level, int version, int scale)
{
QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();
ENCODE_MODE encoding = qrEncoding;
switch (encoding)
{
case ENCODE_MODE.BYTE:
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
break;
case ENCODE_MODE.ALPHA_NUMERIC:
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
break;
case ENCODE_MODE.NUMERIC:
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.NUMERIC;
break;
default:
qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
break;
}
qrCodeEncoder.QRCodeScale = scale;
qrCodeEncoder.QRCodeVersion = version;
switch (level)
{
case ERROR_CORRECTION.L:
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
break;
case ERROR_CORRECTION.M:
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
break;
case ERROR_CORRECTION.Q:
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
break;
default:
qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
break;
}
//文字生成图片
Image image = qrCodeEncoder.Encode(strData);
string filename = DateTime.Now.ToString("yyyyMMddhhmmssfff").ToString() + ".jpg";
string filepath = dir.TrimEnd('\\') + "\\" + filename;
//如果文件夹不存在，则创建
//if (!Directory.Exists(filepath))
// Directory.CreateDirectory(filepath);
System.IO.FileStream fs = new System.IO.FileStream(filepath, System.IO.FileMode.OpenOrCreate, System.IO.FileAccess.Write);
image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
fs.Close();
image.Dispose();
return(filepath);
}
