diff --git a/src/JiShe.CollectBus.IoTDBProvider/Provider/DeviceMetadata.cs b/src/JiShe.CollectBus.IoTDBProvider/Provider/DeviceMetadata.cs
index 50aa8f7..6bdbd56 100644
--- a/src/JiShe.CollectBus.IoTDBProvider/Provider/DeviceMetadata.cs
+++ b/src/JiShe.CollectBus.IoTDBProvider/Provider/DeviceMetadata.cs
@@ -20,7 +20,7 @@ namespace JiShe.CollectBus.IoTDBProvider
         /// <summary>
         /// 测量值集合，用于构建Table的测量值，也就是columnNames参数
         /// </summary>
-        public List<string> ColumnNames { get; } = new();
+        public List<string> ColumnNames { get; set; } = new();
 
         /// <summary>
         /// 列类型集合，用于构建Table的列类型，也就是columnCategories参数
@@ -30,6 +30,6 @@ namespace JiShe.CollectBus.IoTDBProvider
         /// <summary>
         /// 值类型集合，用于构建Table的值类型，也就是dataTypes参数
         /// </summary>
-        public List<TSDataType>DataTypes { get; } = new(); 
+        public List<TSDataType> DataTypes { get; } = new();
     }
 }
diff --git a/src/JiShe.CollectBus.IoTDBProvider/Provider/IoTDBProvider.cs b/src/JiShe.CollectBus.IoTDBProvider/Provider/IoTDBProvider.cs
index acfab09..705b2c1 100644
--- a/src/JiShe.CollectBus.IoTDBProvider/Provider/IoTDBProvider.cs
+++ b/src/JiShe.CollectBus.IoTDBProvider/Provider/IoTDBProvider.cs
@@ -9,6 +9,7 @@ using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using System;
+using System.Collections;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Linq;
@@ -42,7 +43,7 @@ namespace JiShe.CollectBus.IoTDBProvider
             _runtimeContext = runtimeContext;
 
         }
-         
+
         /// <summary>
         /// 插入数据
         /// </summary>
@@ -143,29 +144,39 @@ namespace JiShe.CollectBus.IoTDBProvider
             var timestamps = new List<long>();
             var values = new List<List<object>>();
             var devicePaths = new HashSet<string>();
+            List<string> tempColumnNames = new List<string>();
+            tempColumnNames.AddRange(metadata.ColumnNames);
 
             foreach (var entity in entities)
             {
                 timestamps.Add(entity.Timestamps);
                 var rowValues = new List<object>();
-                foreach (var measurement in metadata.ColumnNames)
+                foreach (var measurement in tempColumnNames)
                 {
 
                     PropertyInfo propertyInfo = typeof(T).GetProperty(measurement);
                     if (propertyInfo == null)
                     {
-                        throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，没有找到{measurement}属性，属于异常情况。");
+                        throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，没有找到{measurement}属性，属于异常情况，-101。");
                     }
 
                     var value = propertyInfo.GetValue(entity);
-                    if (propertyInfo.IsDefined(typeof(SingleMeasuringAttribute), false) && value != null)//表示当前对象是单测点模式，
+                    if (propertyInfo.IsDefined(typeof(SingleMeasuringAttribute), false) && value != null)//表示当前对象是单测点模式
                     {
                         Type tupleType = value.GetType();
                         Type[] tupleArgs = tupleType.GetGenericArguments();
                         Type item2Type = tupleArgs[1]; // T 的实际类型
-                        var item2  = tupleType.GetProperty("Item2")!.GetValue(value); 
+                        var item1 = tupleType.GetProperty("Item1")!.GetValue(value);
+                        var item2 = tupleType.GetProperty("Item2")!.GetValue(value);
+                        if (item1 == null || item2 == null)
+                        {
+                            throw new Exception($"{nameof(BuildTablet)} 构建表模型{typeof(T).Name}时，单测点模式构建失败，没有获取测点名称或者测点值，-102。");
+                        }
 
-                        rowValues.Add(item2); 
+                        var indexOf = metadata.ColumnNames.IndexOf(measurement);
+                        metadata.ColumnNames[indexOf] = (string)item1!;
+                         
+                        rowValues.Add(item2);
 
                     }
                     else
@@ -389,12 +400,34 @@ namespace JiShe.CollectBus.IoTDBProvider
         /// <returns></returns>
         private DeviceMetadata GetMetadata<T>() where T : IoTEntity
         {
-            return _metadataCache.GetOrAdd(typeof(T), type =>
-            {
-                var columns = CollectColumnMetadata(type);
-                var metadata = BuildDeviceMetadata(columns);
-                return metadata;
-            });
+
+            var columns = CollectColumnMetadata(typeof(T));
+            var metadata = BuildDeviceMetadata(columns);
+
+            return _metadataCache.AddOrUpdate(
+                typeof(T),
+                addValueFactory: t => metadata, // 如果键不存在，用此值添加
+                updateValueFactory: (t, existingValue) =>
+                {
+                    var columns = CollectColumnMetadata(t);
+                    var metadata = BuildDeviceMetadata(columns);
+                    
+                    //对现有值 existingValue 进行修改，返回新值
+                    existingValue.ColumnNames = metadata.ColumnNames;
+                    return existingValue;
+                }
+            );
+
+            //return _metadataCache.GetOrAdd(typeof(T), type =>
+            //{
+            //    var columns = CollectColumnMetadata(type);
+            //    var metadata = BuildDeviceMetadata(columns);
+            //    //if (metadata.IsSingleMeasuring)
+            //    //{
+            //    //    _metadataCache.Remove(typeof(T));
+            //    //}
+            //    return metadata;
+            //});
         }
 
         /// <summary>
@@ -434,7 +467,7 @@ namespace JiShe.CollectBus.IoTDBProvider
                     //warning: 单侧点模式注意事项
                     //Entity实体 字段类型是 Tuple<string,T>,Item1=>测点名称，Item2=>测点值,泛型
                     //只有一个Filed字段。
-                    //MeasuringName 默认为 SingleMeasuringAttribute.FieldName。
+                    //MeasuringName 默认为 SingleMeasuringAttribute.FieldName，以便于在获取对应的Value的时候重置为 Item1 的值。
 
                     Type tupleType = prop.PropertyType;
                     Type[] tupleArgs = tupleType.GetGenericArguments();
@@ -446,7 +479,7 @@ namespace JiShe.CollectBus.IoTDBProvider
                         true
                     );
                 }
-                  
+
                 if (column.HasValue)
                 {
                     columns.Add(column.Value);
diff --git a/src/JiShe.CollectBus.IoTDBProvider/Provider/SessionPoolAdapter.cs b/src/JiShe.CollectBus.IoTDBProvider/Provider/SessionPoolAdapter.cs
index 006b1c3..e836672 100644
--- a/src/JiShe.CollectBus.IoTDBProvider/Provider/SessionPoolAdapter.cs
+++ b/src/JiShe.CollectBus.IoTDBProvider/Provider/SessionPoolAdapter.cs
@@ -54,6 +54,11 @@ namespace JiShe.CollectBus.IoTDBProvider.Provider
         public async Task<int> InsertAsync(Tablet tablet)
         {
             var result =  await _sessionPool.InsertAlignedTabletAsync(tablet);
+            if (result != 0)
+            {
+                throw new Exception($"{nameof(TableSessionPoolAdapter)} ");
+            }
+
             return result;
         }