C#如何用ThoughtWorks生成二维码

       在现在的项目中，较多的使用到二维码，前面介绍过一篇使用Gma生成二维码的操作，现在介绍一个第三方组件，主要介绍生成二维码，二维码的解析，以及对二维码的相关信息的选择，现在介绍ThoughtWorks用于生成二维码，本随笔采用.net4.5和C#6.0语法,也可以进行查看ThoughtWorks的底层源码。

1.生成二维码：

    /// 

    /// 生成二维码
    /// 
    /// 带生成二维码的字符串
    /// 路径
    /// 
    public static string CreatehoughtWorksQrCode(string content, string path)
    {
      if (string.IsNullOrEmpty(content))
      {
 throw new ArgumentNullException(content);
      }
      if (string.IsNullOrEmpty(path))
      {
 throw new ArgumentNullException(path);
      }
      var qrCodeEncoder = new QRCodeEncoder
      {
 QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE,
 QRCodeScale = 4,
 QRCodeVersion = 8,
 QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M
      };
      Image image = qrCodeEncoder.Encode(content);
      var filename = DateTime.Now.ToString("yyyymmddhhmmssfff") + ".jpg";
      var filepath = string.Format("{0}{1}", path, filename);
      FileStream fs = null;
      try
      {
 fs = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write);
 image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
      }
      catch (IOException ex)
      {
 throw new IOException(ex.Message);
      }
      finally
      {
 if (fs != null) fs.Close();
 image.Dispose();
      }
      return CodeDecoder(filepath);
    }

2.解析二维码：

    /// 

    /// 二维码解码
    /// 
    /// 图片路径
    /// 
    public static string CodeDecoder(string filePath)
    {
      if (string.IsNullOrEmpty(filePath))
      {
 throw new ArgumentNullException(filePath);
      }
      try
      {
 if (!System.IO.File.Exists(filePath))
   return null;
 var myBitmap = new Bitmap(Image.FromFile(filePath));
 var decoder = new QRCodeDecoder();
 var decodedString = decoder.decode(new QRCodeBitmapImage(myBitmap));
 return decodedString;
      }
      catch (Exception ex)
      {
 throw new Exception(ex.Message);
      }
    }

3.选择生成的二维码参数：

    /// 

    /// 选择生成二维码的相关类型
    /// 要生成的文字或者数字，支持中文。如： "4408810820 深圳－广州" 或者：4444444444
    /// 三种尺寸：BYTE ，ALPHA_NUMERIC，NUMERIC
    /// 大小：L M Q H
    /// 版本：如 8
    /// 比例：如 4
    /// 
    /// 
    public void CreateCode_Choose(string strData, string qrEncoding, string level, int version, int scale)
    {
      var qrCodeEncoder = new QRCodeEncoder();
      var encoding = qrEncoding;
      switch (encoding)
      {
 case "Byte":
   qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;
   break;
 case "AlphaNumeric":
   qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.ALPHA_NUMERIC;
   break;
 case "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 "L":
   qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.L;
   break;
 case "M":
   qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;
   break;
 case "Q":
   qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.Q;
   break;
 default:
   qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;
   break;
      }
      Image image = null;
      FileStream fs = null;
      try
      {
 //文字生成图片
 image = qrCodeEncoder.Encode(strData);
 var filename = DateTime.Now.ToString("yyyymmddhhmmssfff") + ".jpg";
 var filepath = HttpContext.Current.Server.MapPath(@"~Upload") + "\" + filename;
 fs = new FileStream(filepath, FileMode.OpenOrCreate, FileAccess.Write);
 image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
      }
      catch (IOException ex)
      {
 throw new IOException(ex.Message);
      }
      finally
      {
 if (fs != null) fs.Close();
 if (image != null) image.Dispose();
      }
    }

以上就是C#如何用ThoughtWorks生成二维码的详细内容，更多关于c#生成二维码的资料请关注考高分网其它相关文章！