添加命令数据验证和其他杂项修改

Domain/Events/LinkCreatedDomainEvent.cs

@@ -0,0 +1,21 @@
+using Domain.AggregateModel.LinkAggregate;
+using MediatR;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Domain.Events
+{
+    //短链接生成通知
+    public class LinkCreatedDomainEvent:INotification
+    {
+        public Link Link { get; set; }
+
+        public LinkCreatedDomainEvent(Link link)
+        {
+            Link = link;
+        }
+    }
+}