20210813 对接门禁接口调整

SGGL/BLL/Common/AttachFileService.cs

@@ -1,9 +1,11 @@
 using System;
 using System.Collections.Generic;
 using System.Configuration;
+using System.Drawing;
 using System.IO;
 using System.Linq;
 using System.Net;
+using System.Web;
 
 namespace BLL
 {
@@ -414,5 +416,45 @@ namespace BLL
             }
         }
         #endregion
+
+        /// <summary>
+        /// 
+        /// </summary>
+        /// <param name="base64Str"></param>
+        /// <param name="path"></param>
+        /// <param name="imgName"></param>
+        /// <returns></returns>
+        public static string Base64ToImage(string base64Str, string path, string imgName)
+        {
+            string filename = "";//声明一个string类型的相对路径
+
+            String base64 = base64Str.Substring(base64Str.IndexOf(",") + 1);      //将‘，’以前的多余字符串删除
+            System.Drawing.Bitmap bitmap = null;//定义一个Bitmap对象，接收转换完成的图片
+
+            try//会有异常抛出，try，catch一下
+            {
+
+                byte[] arr = Convert.FromBase64String(base64);//将纯净资源Base64转换成等效的8位无符号整形数组
+
+                System.IO.MemoryStream ms = new System.IO.MemoryStream(arr);//转换成无法调整大小的MemoryStream对象
+                bitmap = new System.Drawing.Bitmap(ms);//将MemoryStream对象转换成Bitmap对象
+
+                filename = path + imgName + ".jpg";//所要保存的相对路径及名字
+                string url = ConfigurationManager.AppSettings["localRoot"];
+                string tmpRootDir = System.Web.HttpContext.Current.Server.MapPath(System.Web.HttpContext.Current.Request.ApplicationPath.ToString()); //获取程序根目录 
+                string imagesurl2 = tmpRootDir + filename; //转换成绝对路径 
+                bitmap.Save(imagesurl2, System.Drawing.Imaging.ImageFormat.Jpeg);//保存到服务器路径
+                //bitmap.Save(filePath + ".bmp", System.Drawing.Imaging.ImageFormat.Bmp);
+                //bitmap.Save(filePath + ".gif", System.Drawing.Imaging.ImageFormat.Gif);
+                //bitmap.Save(filePath + ".png", System.Drawing.Imaging.ImageFormat.Png);
+                ms.Close();//关闭当前流，并释放所有与之关联的资源
+                bitmap.Dispose();
+            }
+            catch (Exception e)
+            {
+                string massage = e.Message;
+            }
+            return filename;//返回相对路径
+        }
     }
 }