完善ddd模块及错误异常中间件

src/Yi.Framework/Yi.Framework.Ddd.Application/Dtos/EntityDto.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Yi.Framework.Ddd.Dtos
+{
+    [Serializable]
+    public abstract class EntityDto<TKey> : EntityDto, IEntityDto<TKey>, IEntityDto
+    {
+        //
+        // 摘要:
+        //     Id of the entity.
+        public TKey Id { get; set; }
+
+        public override string ToString()
+        {
+            return $"[DTO: {GetType().Name}] Id = {Id}";
+        }
+    }
+
+    [Serializable]
+    public abstract class EntityDto : IEntityDto
+    {
+        public override string ToString()
+        {
+            return "[DTO: " + GetType().Name + "]";
+        }
+    }
+}

src/Yi.Framework/Yi.Framework.Ddd.Application/Dtos/IEntityDto.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Yi.Framework.Ddd.Dtos
+{
+    public interface IEntityDto
+    {
+    }
+
+    public interface IEntityDto<TKey> : IEntityDto
+    {
+        TKey Id { get; set; }
+    }
+}