提取数据库连接实时创建

performance/Performance.Services/ExtractExcelService/QueryService.cs

@@ -429,13 +429,9 @@ public IEnumerable<T> QueryData<T>(sys_hospitalconfig config, string execsql, pe
                 execsql = Regex.Replace(execsql, item.Key, item.Value, RegexOptions.IgnoreCase);
             }
 
-            IDbConnection connection = null;
+            using IDbConnection connection = ConnectionBuilder.Create((DatabaseType)config.DataBaseType, config.DbSource, config.DbName, config.DbUser, config.DbPassword);
             try
             {
-                if (!pools.ContainsKey(config.Id))
-                    pools.Add(config.Id, ConnectionBuilder.Create((DatabaseType)config.DataBaseType, config.DbSource, config.DbName, config.DbUser, config.DbPassword));
-                connection = pools[config.Id];
-
                 if (connection == null) return Enumerable.Empty<T>();
 
                 if (connection.State != ConnectionState.Open)