用C#如何生成二维码,我们可以通过现有的第三方dll直接来实现,下面列出几种不同的生成方法:
1):通过QrCodeNet(Gma.QrCodeNet.Encoding.dll)来实现
1.1):首先通过VS2015的NuGet下载对应的第三方组件,如下图所示:
1.2):具体生成二维码方法如下
private void GenerateQRByQrCodeNet()
{
QrEncoder qrEncoder = new QrEncoder(ErrorCorrectionLevel.H);
QrCode qrCode = new QrCode();
qrEncoder.TryEncode("Hello World. This is Eric Sun Testing...", out qrCode); GraphicsRenderer renderer = new GraphicsRenderer(new FixedModuleSize(, QuietZoneModules.Two), Brushes.Black, Brushes.White); using (MemoryStream ms = new MemoryStream())
{
renderer.WriteToStream(qrCode.Matrix, ImageFormat.Png, ms);
Image img = Image.FromStream(ms);
img.Save("E:/csharp-qrcode-net.png");
}
}
更多详细信息请参考如下链接:
http://www.cnblogs.com/Soar1991/archive/2012/03/30/2426115.html
http://qrcodenet.codeplex.com/
http://*.com/questions/7020136/free-c-sharp-qr-code-generator
2):通过ThoughtWorks.QRCode(ThoughtWorks.QRCode.dll)来实现
1.1):首先通过VS2015的NuGet下载对应的第三方组件,如下图所示:
1.2):具体生成二维码方法如下
private void GenerateQRByThoughtWorks()
{
QRCodeEncoder encoder = new QRCodeEncoder();
encoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;//编码方式(注意:BYTE能支持中文,ALPHA_NUMERIC扫描出来的都是数字)
encoder.QRCodeScale = ;//大小(值越大生成的二维码图片像素越高)
encoder.QRCodeVersion = ;//版本(注意:设置为0主要是防止编码的字符串太长时发生错误)
encoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;//错误效验、错误更正(有4个等级)
encoder.QRCodeBackgroundColor = Color.Yellow;
encoder.QRCodeForegroundColor = Color.Green;
string qrdata = "Hello 世界! This is Eric Sun Testing...."; Bitmap bcodeBitmap = encoder.Encode(qrdata.ToString());
bcodeBitmap.Save(@"E:\HelloWorld.png", ImageFormat.Png);
bcodeBitmap.Dispose();
}
3):通过Spire.BarCode(Spire.BarCode.dll)来实现
1.1):首先通过VS2015的NuGet下载对应的第三方组件,如下图所示:
1.2):具体生成二维码方法如下
private void GenerateQRBySpire()
{
BarcodeSettings bs = new BarcodeSettings()
{
Data = "This is qr code: H2AMK-Z3V69-RTJZD-C7JAU-WILL4",
Type = BarCodeType.QRCode,
TopTextColor = Color.Red,
ShowCheckSumChar = false,
ShowText = false
};
//Generate the barcode based on the this.barCodeControl1
BarCodeGenerator generator = new BarCodeGenerator(bs);
Image barcode = generator.GenerateImage(); //save the barcode as an image
barcode.Save(@"E:\barcode-2d.png");
}
1.3):附加具体生成条形码方法如下
private void GenerateBarCodeBySpire()
{
BarcodeSettings bs = new BarcodeSettings()
{
Data = "This is barcode: H2AMK-Z3V69-RTJZD-C7JAU-WILL4",
ShowCheckSumChar = false,
TopTextColor = Color.Red,
ShowTopText = false,
ShowTextOnBottom = true
};
//Generate the barcode based on the this.barCodeControl1
BarCodeGenerator generator = new BarCodeGenerator(bs);
Image barcode = generator.GenerateImage(); //save the barcode as an image
barcode.Save(@"E:\barcode.png");
}
1.3):上诉代码我们发现生成的条形码和二维码带有水印[E-ICEBLUE],如何去除水印呢?请看如下代码
BarcodeSettings.ApplyKey("......");
请发送邮件到 sales@e-iceblue.com 免费获取对应的 key 值
更多详细信息请参考如下链接:
http://freebarcode.codeplex.com/
http://www.e-iceblue.com/Knowledgebase/Spire.BarCode/Program-Guide/Programme-Guide-for-Spire.BarCode.html
http://blog.csdn.net/eiceblue/article/details/43405173
4):通过Barcode Rendering Framework(Zen.Barcode.Rendering.Framework.dll)来实现
4.1):首先通过VS2015的NuGet下载对应的第三方组件,如下图所示:
4.2):具体生成二维码方法如下
private void GenerateBarCodeByZen()
{
Code128BarcodeDraw barcode128 = BarcodeDrawFactory.Code128WithChecksum;
Image img = barcode128.Draw("Hello World", );
img.Save("E:/zenbarcode.gif");
}
4.3):附加具体生成条形码方法如下
private void GenerateQRByZen()
{
CodeQrBarcodeDraw qrcode = BarcodeDrawFactory.CodeQr;
Image img = qrcode.Draw("Hello World!", qrcode.GetDefaultMetrics());
img.Save("E:/zenqrcode.gif");
}
更多详细信息请参考如下链接:
http://barcoderender.codeplex.com/
5):通过BarcodeLib(BarcodeLib.Barcode.ASP.NET.dll)来实现,下载对应dll的连接为 http://www.barcodelib.com/asp_net/
5.1):具体生成二维码方法如下
private void GenerateQRByBarcodeLib()
{
QRCode qrbarcode = new QRCode();
qrbarcode.Encoding = QRCodeEncoding.Auto;
qrbarcode.Data = "336699885522 This is Eric Sun Testing."; qrbarcode.ModuleSize = ;
qrbarcode.LeftMargin = ;
qrbarcode.RightMargin = ;
qrbarcode.TopMargin = ;
qrbarcode.BottomMargin = ;
qrbarcode.ImageFormat = System.Drawing.Imaging.ImageFormat.Gif; // Save QR Code barcode image into your system
qrbarcode.drawBarcode("E:/csharp-qrcode-lib.gif");
}
5.2):附加具体生成条形码方法如下
private void GenerateLinearByBarcodeLib()
{
Linear barcode = new Linear();
barcode.Type = BarcodeType.CODE128;
barcode.Data = "CODE128";
// other barcode settings. // save barcode image into your system
barcode.drawBarcode("E:/barcode.png");
}
我们使用的是试用版(带水印的......),还有付费的正版,详情请参考如下链接:
http://www.barcodelib.com/asp_net/