完成MQTT服务器的别名设置

DMS.Application/DTOs/VariableMqttAliasDto.cs

@@ -1,3 +1,5 @@
+using DMS.Core.Models;
+
 namespace DMS.Application.DTOs;
 
 /// <summary>
@@ -10,4 +12,14 @@ public class VariableMqttAliasDto
     public int MqttServerId { get; set; }
     public string MqttServerName { get; set; } // 用于UI显示关联的服务器名称
     public string Alias { get; set; }
+    
+    /// <summary>
+    /// 关联的变量对象。
+    /// </summary>
+    public Variable Variable { get; set; }
+    
+    /// <summary>
+    /// 关联的MQTT服务器对象。
+    /// </summary>
+    public MqttServer MqttServer { get; set; }
 }

DMS.Application/Profiles/MappingProfile.cs

@@ -36,7 +36,7 @@ public class MappingProfile : Profile
 
         // VariableMqttAlias 映射
         CreateMap<VariableMqttAlias, VariableMqttAliasDto>()
-            .ForMember(dest => dest.MqttServerName, opt => opt.Ignore())
+            .ForMember(dest => dest.MqttServerName, opt => opt.MapFrom(src => src.MqttServer.ServerName))
             .ReverseMap();
 
         // VariableHistory 映射

DMS.Application/Services/MqttAliasAppService.cs

@@ -57,11 +57,17 @@ public class MqttAliasAppService : IMqttAliasAppService
             else
             {
                 // 如果不存在，则创建新的关联
+                // 获取关联的Variable和MqttServer实体
+                var variable = await _repoManager.Variables.GetByIdAsync(variableId);
+                var mqttServer = await _repoManager.MqttServers.GetByIdAsync(mqttServerId);
+                
                 var newAlias = new VariableMqttAlias
                 {
                     VariableId = variableId,
                     MqttServerId = mqttServerId,
-                    Alias = alias
+                    Alias = alias,
+                    Variable = variable,
+                    MqttServer = mqttServer
                 };
                 await _repoManager.VariableMqttAliases.AddAsync(newAlias);
             }