.net 生成二维码

nuget 引入QRCode组件

 

 此方法会生成二维码并保存成图片

using QRCoder;
using System;
using System.Collections.Generic;
using System.Drawing.Imaging;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace UserQrCode.Tools
{
    public class QrCodeHelper
    {
        public static  void CreateCode(string content, string fileName)
        {
            QRCodeGenerator codeGenerator = new QRCodeGenerator();
            using (QRCodeData qrData = codeGenerator.CreateQrCode(content, QRCodeGenerator.ECCLevel.Q,true,true,eciMode:QRCodeGenerator.EciMode.Utf8))
            {
                using (QRCode qrCode = new QRCode(qrData))
                {
                    Bitmap qrCodeImage = qrCode.GetGraphic(4, Color.Black, Color.White, null, 15, 6, false);
                    MemoryStream ms = new MemoryStream();
                    qrCodeImage.Save(ms, ImageFormat.Jpeg);
                    qrCodeImage.Save(fileName);
                }
            }
        }
    }
}