diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
index 4e926c101..7acefba28 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/InsertableProvider/InsertableProvider.cs
@@ -262,11 +262,11 @@ namespace SqlSugar
                 ++i;
             }
         }
-        protected string GetDbColumnName(string columns)
+        private string GetDbColumnName(string propertyName)
         {
             if (!IsMappingColumns)
             {
-                return columns;
+                return propertyName;
             }
             if (this.Context.MappingColumns.Any(it => it.EntityName.Equals(EntityInfo.EntityName, StringComparison.CurrentCultureIgnoreCase)))
             {
@@ -274,12 +274,12 @@ namespace SqlSugar
             }
             if (MappingColumnList == null || !MappingColumnList.Any())
             {
-                return columns;
+                return propertyName;
             }
             else
             {
-                var mappInfo = this.Context.MappingColumns.FirstOrDefault(it => it.EntityName == EntityInfo.EntityName && it.PropertyName.Equals(columns, StringComparison.CurrentCultureIgnoreCase));
-                return mappInfo == null ? columns : mappInfo.DbColumnName;
+                var mappInfo = this.MappingColumnList.FirstOrDefault(it => it.PropertyName.Equals(propertyName, StringComparison.CurrentCultureIgnoreCase));
+                return mappInfo == null ? propertyName : mappInfo.DbColumnName;
             }
         }
 
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
index f41bc731c..61bba6810 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Abstract/UpdateProvider/UpdateableProvider.cs
@@ -281,11 +281,11 @@ namespace SqlSugar
                 this.UpdateBuilder.Parameters.RemoveAll(it => this.UpdateBuilder.SetValues.Any(v => (SqlBuilder.SqlParameterKeyWord + SqlBuilder.GetNoTranslationColumnName(v.Key)) == it.ParameterName));
             }
         }
-        private string GetDbColumnName(string entityName)
+        private string GetDbColumnName(string propertyName)
         {
             if (!IsMappingColumns)
             {
-                return entityName;
+                return propertyName;
             }
             if (this.Context.MappingColumns.Any(it => it.EntityName.Equals(EntityInfo.EntityName, StringComparison.CurrentCultureIgnoreCase)))
             {
@@ -293,12 +293,12 @@ namespace SqlSugar
             }
             if (MappingColumnList == null || !MappingColumnList.Any())
             {
-                return entityName;
+                return propertyName;
             }
             else
             {
-                var mappInfo = this.Context.MappingColumns.FirstOrDefault(it => it.PropertyName.Equals(entityName, StringComparison.CurrentCultureIgnoreCase));
-                return mappInfo == null ? entityName : mappInfo.DbColumnName;
+                var mappInfo = this.MappingColumnList.FirstOrDefault(it => it.PropertyName.Equals(propertyName, StringComparison.CurrentCultureIgnoreCase));
+                return mappInfo == null ? propertyName : mappInfo.DbColumnName;
             }
         }
         private List<string> GetPrimaryKeys()
diff --git a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Entities/ConnectionConfig.cs b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Entities/ConnectionConfig.cs
index 7b95de8e2..b1fef35a2 100644
--- a/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Entities/ConnectionConfig.cs
+++ b/Src/Asp.NetCore2/SqlSeverTest/SqlSugar/Entities/ConnectionConfig.cs
@@ -1,4 +1,5 @@
-using System;
+using Newtonsoft.Json;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -26,6 +27,7 @@ namespace SqlSugar
         /// <summary>
         /// Configure External Services replace default services,For example, Redis storage
         /// </summary>
+        [JsonIgnore]
         public ConfigureExternalServices ConfigureExternalServices = _DefaultServices;
         private static ConfigureExternalServices _DefaultServices = new ConfigureExternalServices();
         /// <summary>