feat(光缆故障): 重构导出逻辑，增加计算字段与增强故障时间展示

- 将导出数据从手动构建Dictionary改为直接使用DTO序列化，简化Controller逻辑
- 为OdfCableFaultExportDto添加ExcelColumnName属性实现声明式中文列映射
- 在导出前填充计算字段FaultTimesDisplay和DisplayMileage
- 将FaultTime和Mileage标记为ExcelIgnore，防止内部字段被导出
- Service层批量查询故障频次时间，并在分页结果中返回供前端使用
- 前端表格故障时间列增强展示，显示首次故障时间及额外频次时间列表

server/ZR.Admin.WebApi/Controllers/Business/OdfCableFaultsController.cs

@@ -118,8 +118,7 @@ namespace ZR.Admin.WebApi.Controllers.Business
             var faultIds = list.Select(item => item.Id).ToList();
             var allFaultTimes = _OdfCableFaultsService.GetFaultTimesByFaultIds(faultIds);
 
-            // 构建中文列头的导出数据
+            // 填充计算字段
-            var exportList = new List<Dictionary<string, object>>();
             foreach (var item in list)
             {
                 // 拼接所有故障时间（首次 + 增加的频次时间）
@@ -130,28 +129,13 @@ namespace ZR.Admin.WebApi.Controllers.Business
                     times.AddRange(allFaultTimes[item.Id].Select(t => t.ToString("yyyy-MM-dd HH:mm:ss")));
                 }
                 times.Sort();
+                item.FaultTimesDisplay = string.Join("\n", times);
 
-                var row = new Dictionary<string, object>
+                // 表显故障里程 = 原始里程 + 矫正值
-                {
+                item.DisplayMileage = CalcDisplayMileage(item.Mileage, item.MileageCorrection);
-                    ["编号"] = item.Id,
-                    ["光缆编号"] = item.CableId,
-                    ["故障时间"] = string.Join("\n", times),
-                    ["故障发生频次"] = item.FaultCount,
-                    ["人员"] = item.Personnel,
-                    ["故障原因"] = item.FaultReason,
-                    ["表显故障里程"] = CalcDisplayMileage(item.Mileage, item.MileageCorrection),
-                    ["表显里程矫正"] = item.MileageCorrection,
-                    ["地点"] = item.Location,
-                    ["纬度"] = item.Latitude,
-                    ["经度"] = item.Longitude,
-                    ["备注"] = item.Remark,
-                    ["创建时间"] = item.CreatedAt,
-                    ["所属光缆"] = item.CableName
-                };
-                exportList.Add(row);
             }
 
-            var result = ExportExcelMini(exportList, "故障列表", "故障列表");
+            var result = ExportExcelMini(list, "故障列表", "故障列表");
             return ExportExcel(result.Item2, result.Item1);
         }
 

server/ZR.Model/Business/Dto/OdfCableFaultsDto.cs

@@ -114,19 +114,52 @@ namespace ZR.Model.Business.Dto
     /// </summary>
     public class OdfCableFaultExportDto
     {
+        [ExcelColumnName("编号")]
         public int Id { get; set; }
+
+        [ExcelColumnName("光缆编号")]
         public int CableId { get; set; }
-        public DateTime FaultTime { get; set; }
+
-        public string Personnel { get; set; }
+        [ExcelColumnName("故障时间")]
-        public string FaultReason { get; set; }
+        public string FaultTimesDisplay { get; set; }
-        public string Mileage { get; set; }
+
-        public string MileageCorrection { get; set; }
+        [ExcelColumnName("故障发生频次")]
-        public string Location { get; set; }
-        public decimal Latitude { get; set; }
-        public decimal Longitude { get; set; }
-        public string Remark { get; set; }
-        public DateTime? CreatedAt { get; set; }
         public int FaultCount { get; set; }
+
+        [ExcelColumnName("人员")]
+        public string Personnel { get; set; }
+
+        [ExcelColumnName("故障原因")]
+        public string FaultReason { get; set; }
+
+        [ExcelColumnName("表显故障里程")]
+        public string DisplayMileage { get; set; }
+
+        [ExcelColumnName("表显里程矫正")]
+        public string MileageCorrection { get; set; }
+
+        [ExcelColumnName("地点")]
+        public string Location { get; set; }
+
+        [ExcelColumnName("纬度")]
+        public decimal Latitude { get; set; }
+
+        [ExcelColumnName("经度")]
+        public decimal Longitude { get; set; }
+
+        [ExcelColumnName("备注")]
+        public string Remark { get; set; }
+
+        [ExcelColumnName("创建时间")]
+        public DateTime? CreatedAt { get; set; }
+
+        [ExcelColumnName("所属光缆")]
         public string CableName { get; set; }
+
+        // 以下字段不导出，仅内部使用
+        [ExcelIgnore]
+        public DateTime FaultTime { get; set; }
+        [ExcelIgnore]
+        public string Mileage { get; set; }
     }
 }

server/ZR.Service/Business/OdfCableFaultsService.cs

@@ -49,9 +49,40 @@ namespace ZR.Service.Business
                 .OrderByDescending(it => it.FaultTime)
                 .ToPageList(parm.PageNum, parm.PageSize, ref total);
 
+            // 批量查询频次时间记录
+            var faultIds = list.Select(x => x.Id).ToList();
+            var allFaultTimes = GetFaultTimesByFaultIds(faultIds);
+
+            var resultList = list.Select(item =>
+            {
+                var times = new List<string>();
+                if (allFaultTimes.ContainsKey(item.Id))
+                {
+                    times = allFaultTimes[item.Id].Select(t => t.ToString("yyyy-MM-dd HH:mm:ss")).ToList();
+                }
+                return new
+                {
+                    item.Id,
+                    item.CableId,
+                    item.FaultTime,
+                    item.Personnel,
+                    item.FaultReason,
+                    item.Mileage,
+                    item.MileageCorrection,
+                    item.Location,
+                    item.Latitude,
+                    item.Longitude,
+                    item.Remark,
+                    item.CreatedAt,
+                    item.FaultCount,
+                    item.CableName,
+                    FaultTimes = times
+                };
+            }).ToList();
+
             return new PagedInfo<dynamic>
             {
-                Result = list.Cast<dynamic>().ToList(),
+                Result = resultList.Cast<dynamic>().ToList(),
                 TotalNum = total,
                 PageIndex = parm.PageNum,
                 PageSize = parm.PageSize

server/ZR.Vue/src/views/business/OdfCableFaults.vue

@@ -79,7 +79,15 @@
       @selection-change="handleSelectionChange">
       <el-table-column type="selection" width="50" align="center" />
       <el-table-column prop="id" label="Id" align="center" v-if="columns.showColumn('id')" />
-      <el-table-column prop="faultTime" label="故障时间" align="center" :show-overflow-tooltip="true" v-if="columns.showColumn('faultTime')" />
+      <el-table-column prop="faultTime" label="故障时间" align="center" :show-overflow-tooltip="false" v-if="columns.showColumn('faultTime')">
+        <template #default="scope">
+          <div v-if="scope.row.faultTimes && scope.row.faultTimes.length > 0">
+            <div>{{ scope.row.faultTime }}</div>
+            <div v-for="(t, i) in scope.row.faultTimes" :key="i" style="color: #909399;">{{ t }}</div>
+          </div>
+          <span v-else>{{ scope.row.faultTime }}</span>
+        </template>
+      </el-table-column>
       <el-table-column prop="personnel" label="人员" align="center" :show-overflow-tooltip="true" v-if="columns.showColumn('personnel')" />
       <el-table-column prop="faultReason" label="故障原因" align="center" :show-overflow-tooltip="true" v-if="columns.showColumn('faultReason')" />
       <el-table-column label="表显故障里程" align="center" :show-overflow-tooltip="true" v-if="columns.showColumn('mileage')">