修改

CallCenterApi/CallCenterApi.Interface/CallCenterApi.Interface/App_Start/ErrorAttribute.cs

                 Params.Add(key, rt.Params[key]);
             }
 
-            log.Error(Params.ToJson() + "\r\n" + context.Exception.ToString());
+            log.Error("系统异常，请求信息：" + Params.ToJson(), context.Exception);
         }
     }
 }

CallCenterCommon/CallCenter.Utility/log/Log.cs

 using log4net;
+using System;
 
 namespace CallCenter.Utility
 {
         {
             this.logger.Error(RequestString.GetIP() + "  " + message);
         }
+        public void Error(object message, Exception ex)
+        {
+            this.logger.Error(RequestString.GetIP() + "  " + message, ex);
+        }
         public void Info(object message)
         {
             this.logger.Info(RequestString.GetIP() + "  " + message);