读本地图像文件，在上面写一些文件，再传到ＷＷＷ服务器上

  1   public class ImgExtends
  2
  3     {
  4
  5         /// <summary>
  6
  7         /// 像本地图像文件上写字，并上传本地服务器
  8
  9         /// </summary>
 10
 11         /// <param name="imgserverurl">Web服务器上的图片路径</param>
 12
 13         /// <param name="title">图片上的文字</param>
 14
 15         /// <returns></returns>
 16
 17         public static string GetImg(string imgserverurl, string title)
 18
 19         {
 20
 21             try
 22
 23             {
 24
 25                 if (!string.IsNullOrEmpty(imgserverurl))
 26
 27                 {
 28
 29                     string Path = System.Web.HttpContext.Current.Server.MapPath("/Upload/Product");
 30
 31                     string FileName = "\\" + VCommons.Utils.GetNewGuid() + ".jpg";
 32
 33
 34
 35                     Image img = Image.FromFile(imgserverurl);
 36
 37                     int width = img.Width;
 38
 39                     int height = img.Height;
 40
 41
 42
 43                     Bitmap bitmap = new Bitmap(width, height, PixelFormat.Format24bppRgb);
 44
 45                     bitmap.SetResolution(img.HorizontalResolution, img.VerticalResolution);
 46
 47
 48
 49                     Graphics grap = Graphics.FromImage(bitmap);
 50
 51                     grap.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
 52
 53                     grap.DrawImage(img, new Rectangle(0, 0, width, height), 0, 0, width, height, GraphicsUnit.Pixel);
 54
 55
 56
 57                     Font font = new Font("微软雅黑", 24, FontStyle.Bold);
 58
 59
 60
 61                     SolidBrush solid = new SolidBrush(Color.Turquoise);
 62
 63
 64
 65                     StringFormat format = new StringFormat();
 66
 67                     format.Alignment = StringAlignment.Near;
 68
 69                     grap.DrawString(title, font, solid, 25, 18, format);
 70
 71                     grap.Dispose();
 72
 73
 74
 75                     bitmap.Save(Path + FileName, ImageFormat.Jpeg);
 76
 77                     return "http://" + RequestHelper.GetHost() + "/Upload/Product" + FileName;
 78
 79                 }
 80
 81                 else
 82
 83                 {
 84
 85                     return string.Empty;
 86
 87                 }
 88
 89
 90
 91             }
 92
 93             catch (Exception)
 94
 95             {
 96
 97                 return string.Empty;
 98
 99             }
100
101         }
102
103     }

 本文转自博客园张占岭（仓储大叔）的博客，原文链接：读本地图像文件，在上面写一些文件，再传到ＷＷＷ服务器上，如需转载请自行联系原博主。