在.net core web项目中生成二维码

Install-Package QRCoder

 

第2步：编写生成二维码的代码

public IActionResult QrCode()

{

    QRCodeGenerator generator = new QRCodeGenerator();

    string Url = "http://www.baidu.com";

    QRCodeData codeData = generator.CreateQrCode(Url, QRCodeGenerator.ECCLevel.M, true);

    QRCoder.QRCode qrcode = new QRCoder.QRCode(codeData);

 

    Bitmap qrImage = qrcode.GetGraphic(100, Color.Black, Color.White, true);

    MemoryStream ms = new MemoryStream();

    qrImage.Save(ms, System.Drawing.Imaging.ImageFormat.Bmp);

    byte[] bytes = ms.GetBuffer();

    ms.Close();

    return File(bytes, "image/Png");

}

第3步：运行测试