diff --git a/OpenAuth.WebApi/Template/SingleTable/BuildApp.html b/OpenAuth.WebApi/Template/SingleTable/BuildApp.html
index a7529db9..434ce4ab 100644
--- a/OpenAuth.WebApi/Template/SingleTable/BuildApp.html
+++ b/OpenAuth.WebApi/Template/SingleTable/BuildApp.html
@@ -45,7 +45,10 @@ namespace OpenAuth.App
         public void Add(AddOrUpdate{ClassName}Req req)
         {
             var obj = req.MapTo<{ClassName}>();
-            obj.Id = Guid.NewGuid().ToString();
+            if(obj.KeyIsNull())  //如果主键为空，则生成默认值
+            {
+                obj.GenerateDefaultKeyVal();
+            }
             //todo: 根据业务需要调整字段
             obj.Createtime = DateTime.Now;
             var user = _auth.GetCurrentUser().User;
diff --git a/OpenAuth.WebApi/Template/SingleTable/BuildAppWithDynamicHeader.html b/OpenAuth.WebApi/Template/SingleTable/BuildAppWithDynamicHeader.html
index da6ce964..630685da 100644
--- a/OpenAuth.WebApi/Template/SingleTable/BuildAppWithDynamicHeader.html
+++ b/OpenAuth.WebApi/Template/SingleTable/BuildAppWithDynamicHeader.html
@@ -55,7 +55,10 @@ namespace OpenAuth.App
         public void Add(AddOrUpdate{ClassName}Req req)
         {
             var obj = req.MapTo<{ClassName}>();
-            obj.Id = Guid.NewGuid().ToString();
+            if(obj.KeyIsNull())  //如果主键为空，则生成默认值
+            {
+                obj.GenerateDefaultKeyVal();
+            }
             //todo: 根据业务需要调整字段
             obj.Createtime = DateTime.Now;
             var user = _auth.GetCurrentUser().User;