56 lines
1.9 KiB
C#
56 lines
1.9 KiB
C#
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 System.Web.UI;
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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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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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/// <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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} |