automapper自动映射(传入前端数据ID必须转string)

Model/Dto/Asset/EquipmentAttachmentDto.cs

@@ -0,0 +1,43 @@
+using Model.Entity.Asset;
+
+namespace Model.Dto.Asset
+{
+    /// <summary>
+    /// 设备附件 DTO（Id 由 long 改为 string，避免前端精度丢失）
+    /// </summary>
+    public class EquipmentAttachmentDto
+    {
+        /// <summary>主键 Id（long → string）</summary>
+        public string Id { get; set; }
+
+        /// <summary>删除状态（0、未删除；1、已删除）</summary>
+        public byte IsDel { get; set; }
+
+        /// <summary>创建时间</summary>
+        public DateTime? CreateTime { get; set; }
+
+        /// <summary>设备Id（关联 EquipmentEntity.Id）</summary>
+        public long EquipmentId { get; set; }
+
+        /// <summary>文件名称</summary>
+        public string? FileName { get; set; }
+
+        /// <summary>文件类型（说明书/合格证/校准证书等）</summary>
+        public AttachmentTypeEnum FileType { get; set; }
+
+        /// <summary>文件扩展名（如 .pdf、.jpg）</summary>
+        public string? FileExt { get; set; }
+
+        /// <summary>文件存储地址</summary>
+        public string? FileUrl { get; set; }
+
+        /// <summary>文件大小（byte）</summary>
+        public long FileSize { get; set; }
+
+        /// <summary>上传人</summary>
+        public string? Uploader { get; set; }
+
+        /// <summary>备注</summary>
+        public string? Remark { get; set; }
+    }
+}