1 #region 图片转为base64编码的字符串---ImgToBase64String
2 /// <summary>
3 /// 图片转为base64编码的字符串
4 /// </summary>
5 /// <param name="Imagefilename">图片地址</param>
6 /// <returns></returns>
7 public static List<publicAnnex> ImgToBase64String(string Imagefilename)
8 {
9 try
10 {
11 var AList = new List<publicAnnex>();
12 var Listarr = Imagefilename.Split(',');
13 foreach (var item in Listarr)
14 {
15 string uppath = System.Web.HttpContext.Current.Server.MapPath(item);
16 Bitmap bmp = new Bitmap(uppath);
17 MemoryStream ms = new MemoryStream();
18 bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
19 byte[] arr = new byte[ms.Length];
20 ms.Position = 0;
21 ms.Read(arr, 0, (int)ms.Length);
22 ms.Close();
23 var A = new publicAnnex();
24 A.Content = Convert.ToBase64String(arr);
25 AList.Add(A);
26 }
27 return AList;
28 }
29 catch (Exception ex)
30 {
31 return null;
32 }
33 }
34 #endregion
35
36 #region base64编码的字符串转为图片---Base64StringToImage
37 /// <summary>
38 /// base64编码的字符串转为图片
39 /// </summary>
40 /// <param name="strbase64">字符串</param>
41 /// <returns></returns>
42 public static string Base64StringToImage(List<string> strbase64)
43 {
44 try
45 {
46 var AnnexAddress = "";
47 foreach (var item in strbase64)
48 {
49 string time = DateTime.Now.ToString("yyyyMMddHHmmssffff");
50 byte[] arr = Convert.FromBase64String(item);
51 MemoryStream ms = new MemoryStream(arr);
52 Bitmap bmp = new Bitmap(ms);
53 string uppath = System.Web.HttpContext.Current.Server.MapPath("~/UploadFiles/Image/") + "YMD_" + time + ".jpg";
54 bmp.Save(uppath);
55 ms.Close();
56 AnnexAddress += "/UploadFiles/Image/YMD_" + time + ".jpg,";
57 }
58 AnnexAddress.Substring(0, AnnexAddress.Length - 1);
59 return AnnexAddress;
60 }
61 catch (Exception ex)
62 {
63 return null;
64 }
65 }
66 #endregion
