添加命令数据验证和其他杂项修改

Domain/Events/AppBaseUrlUpdatedDomainEvent.cs

@@ -0,0 +1,21 @@
+using Domain.AggregateModel.AppAggregate;
+using MediatR;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Domain.Events
+{
+    //更新了基础地址
+    public class AppBaseUrlUpdatedDomainEvent: INotification
+    {
+        public App App { get; set; }
+        public string OldBaseUrl { get; set; }
+        public AppBaseUrlUpdatedDomainEvent(App app,string oldBaseUrl) {
+            App = app;
+            OldBaseUrl = oldBaseUrl;
+        }
+    }
+}