122 lines
5.3 KiB
C#
122 lines
5.3 KiB
C#
using NPOI.OpenXmlFormats.Shared;
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using System;
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using System.IO;
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using System.Text;
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using ThoughtWorks.QRCode.Codec;
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using QRCoder;
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namespace BLL
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{
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/// <summary>
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/// 上传附件相关
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/// </summary>
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public class CreateQRCodeService
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{
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/// <summary>
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/// 生成二维码方法一
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/// </summary>
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public static string CreateCode_Simple(string nr)
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{
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try
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{
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string imageUrl = string.Empty;
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if (!string.IsNullOrEmpty(nr))
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{
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QRCodeEncoder qrCodeEncoder = new QRCodeEncoder
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{
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QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE,
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QRCodeScale = nr.Length,
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QRCodeVersion = 0,
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QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M
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};
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System.Drawing.Image image = qrCodeEncoder.Encode(nr, Encoding.UTF8);
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string filepath = Funs.RootPath + UploadFileService.QRCodeImageFilePath;
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//如果文件夹不存在，则创建
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if (!Directory.Exists(filepath))
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{
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Directory.CreateDirectory(filepath);
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}
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string filename = DateTime.Now.ToString("yyyymmddhhmmssfff").ToString() + ".jpg";
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FileStream fs = new FileStream(filepath + filename, FileMode.OpenOrCreate, FileAccess.Write);
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image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
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fs.Close();
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image.Dispose();
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imageUrl = UploadFileService.QRCodeImageFilePath + filename;
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}
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return imageUrl;
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}
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catch (Exception ex)
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{
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ErrLogInfo.WriteLog(ex, "二维码生成" + nr, "CreateQRCodeService.CreateCode_Simple");
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return null;
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}
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}
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/*
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public Bitmap GetGraphic(int pixelsPerModule, Color darkColor, Color lightColor, [Bitmap icon=null], [int iconSizePercent=15], [int iconBorderWidth=6], [bool drawQuietZones=true])
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int pixelsPerModule：生成二维码图片的像素大小；
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Color darkColor：二维码图像暗色，一般设置为Color.Black。
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Color lightColor：二维码图像亮色， 一般设置为Color.White。
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Bitmap icon：二维码中间水印图标。
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int iconSizePercent：水印图标的大小比例。
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int iconBorderWidth：水印图标的边框。不能设为0，否则会显示“参数错误”，程序运行出错。
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bool drawQuietZones：静止区，即是否绘画二维码的空白边框区域，默认为true。
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*/
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public static string CreateCode_Simple(string nr,string filename)
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{
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try
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{
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string imageUrl = string.Empty;
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if (!string.IsNullOrEmpty(nr))
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{
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//QRCodeEncoder qrCodeEncoder = new QRCodeEncoder
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//{
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// QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE,
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// QRCodeScale = nr.Length,
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// QRCodeVersion =0,
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// QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M
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//};
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//System.Drawing.Image image = qrCodeEncoder.Encode(nr, Encoding.UTF8);
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QRCoder.QRCode qRCode = new QRCoder.QRCode();
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QRCodeGenerator qrGenerator = new QRCodeGenerator();
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QRCodeData qrCodeData = qrGenerator.CreateQrCode(nr, QRCodeGenerator.ECCLevel.Q);
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QRCode qrcode = new QRCode(qrCodeData);
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System.Drawing.Image image = qrcode.GetGraphic(100);
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string filepath = Funs.RootPath + UploadFileService.QRCodeImageFilePath;
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//如果文件夹不存在，则创建
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if (!Directory.Exists(filepath))
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{
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Directory.CreateDirectory(filepath);
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}
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// string filename = DateTime.Now.ToString("yyyymmddhhmmssfff").ToString() + ".jpg";
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filename = filename + ".jpg";
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//if (File.Exists(filepath + filename))
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//{
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// File.Delete(filepath + filename);
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//}
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FileStream fs = new FileStream(filepath + filename, FileMode.OpenOrCreate, FileAccess.Write);
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image.Save(fs, System.Drawing.Imaging.ImageFormat.Jpeg);
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fs.Close();
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image.Dispose();
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imageUrl = UploadFileService.QRCodeImageFilePath + filename;
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}
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return imageUrl;
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}
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catch (Exception ex)
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{
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ErrLogInfo.WriteLog(ex, "二维码生成" + nr, "CreateQRCodeService.CreateCode_Simple");
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return null;
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}
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}
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/// <summary>
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///
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/// </summary>
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/// <returns></returns>
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public static bool isHaveImage(string url)
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{
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string filepath = Funs.RootPath + url;
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return File.Exists(filepath);
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}
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}
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} |