初步给Mqtt添加了别名功能

DMS.Core/Interfaces/Repositories/IVariableMqttAliasRepository.cs

@@ -1,9 +1,19 @@
 
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
 namespace DMS.Core.Interfaces.Repositories
 {
-    public interface IVariableMqttAliasRepository:IBaseRepository<VariableMqttAlias>
+    public interface IVariableMqttAliasRepository : IBaseRepository<VariableMqttAlias>
     {
-     
+        /// <summary>
+        /// 异步获取指定变量的所有MQTT别名关联。
+        /// </summary>
+        Task<List<VariableMqttAlias>> GetAliasesForVariableAsync(int variableId);
 
+        /// <summary>
+        /// 异步根据变量和服务器获取别名关联。
+        /// </summary>
+        Task<VariableMqttAlias> GetByVariableAndServerAsync(int variableId, int mqttServerId);
     }
 }