业务需要，系统在处理数据时，每暂存一列数据将他插入到右侧的表格中，再执行批量保存，如图所示：
//以前的做法可能是生成一堆 insert into xx values xxx 的sql语句，在程序中去一次执行来实现。这种做法在数据量大的情况下，简直不要太慢！不建议使用
//在.NET里可以使用SqlBulkCopy来一次性插入多条数据，我们只需要使用WriteToServer给它传递一个DataTable类型，他就会自动实现批量插入
代码如下，我的代码需要处理一些数据，如果看起来麻烦请看代码下方的Demo：
1 protected void Button5_Click1(object sender, EventArgs e) 2 { 3 DataTable dt = new DataTable(); 4 CJJLModel model = new CJJLModel(); 5 //前台获取到的table所有数据转为List 6 model.CjjlList = Newtonsoft.Json.JsonConvert.DeserializeObject<cjjLists>(this.HidValue.Value); 7 Tool.SystemPage UserDal = new Tool.SystemPage(); 8 string UserData = UserDal.GetPageUserData(); 9 string[] ArrUser = UserData.Split(','); 10 for (int i = 0; i < model.CjjlList.Count; i++) 11 { 12 model.CjjlList[i].Creater = ArrUser[0]; 13 model.CjjlList[i].CreateData = DateTime.Now; 14 model.CjjlList[i].CreateTime = DateTime.Now; 15 } 16 //list转DataTable 17 dt = ToDataTable(model.CjjlList); 18 using (SqlBulkCopy bulkCopy = new SqlBulkCopy(SqlHelper.SCConnString)) 19 { 20 bulkCopy.DestinationTableName = "SC_CJ_CJJL"; //指定要插入的目标表 21 22 //DataTable列名与数据库列名的映射 23 bulkCopy.ColumnMappings.Add("ID", "ID"); 24 bulkCopy.ColumnMappings.Add("Location", "Location"); 25 bulkCopy.ColumnMappings.Add("MLDM", "MLDM"); 26 bulkCopy.ColumnMappings.Add("MLMC", "MLMC"); 27 bulkCopy.ColumnMappings.Add("GGMC", "GGMC"); 28 bulkCopy.ColumnMappings.Add("XDL", "XDL"); 29 bulkCopy.ColumnMappings.Add("SJHL", "SJHL"); 30 bulkCopy.ColumnMappings.Add("ZPPS", "ZPPS"); 31 bulkCopy.ColumnMappings.Add("TMLKS", "TMLKS"); 32 bulkCopy.ColumnMappings.Add("SCDH", "SCDH"); 33 bulkCopy.ColumnMappings.Add("CHS", "CHS"); 34 bulkCopy.ColumnMappings.Add("BZ", "BZ"); 35 bulkCopy.ColumnMappings.Add("QWID", "QWID"); 36 bulkCopy.ColumnMappings.Add("ZCID", "ZCID"); 37 bulkCopy.ColumnMappings.Add("MRBBID", "MRBBID"); 38 bulkCopy.ColumnMappings.Add("KH", "KH"); 39 bulkCopy.ColumnMappings.Add("FDCS", "FDCS"); 40 bulkCopy.ColumnMappings.Add("YSDM", "YSDM"); 41 bulkCopy.ColumnMappings.Add("SYBW", "SYBW"); 42 bulkCopy.ColumnMappings.Add("CreateData", "CreateData"); 43 bulkCopy.ColumnMappings.Add("Creater", "Creater"); 44 bulkCopy.ColumnMappings.Add("CreateTime", "CreateTime"); 45 46 bulkCopy.WriteToServer(dt);//写入到数据库中 47 } 48 Response.Write("<script>alert('保存成功');location.href='CJJLList.aspx';</script>"); 49 }
Demo示例代码：
1 protected void Button5_Click(object sender, EventArgs e) 2 { 3 //准备要批量插入的数据 4 DataTable table = new DataTable(); 5 table.Columns.Add("Age"); 6 table.Columns.Add("Name"); 7 8 //添加测试数据 9 DataRow row = table.NewRow(); 10 row["Age"] = 28; 11 row["Name"] = "张三"; 12 table.Rows.Add(row); 13 14 DataRow row1 = table.NewRow(); 15 row1["Age"] = 29; 16 row1["Name"] = "李四"; 17 table.Rows.Add(row1); 18 19 20 string connectionStr = "数据连接字符串"; 21 using (SqlBulkCopy bulkCopy = new SqlBulkCopy(connectionStr)) 22 { 23 bulkCopy.DestinationTableName = "Person";//在插入的目标表 24 //DataTable列名与数据库列名的映射 25 bulkCopy.ColumnMappings.Add("Age", "Age"); 26 bulkCopy.ColumnMappings.Add("Name", "Name"); 27 bulkCopy.WriteToServer(table);//写入到数据库中 28 } 29 Response.Write("YES"); 30 }
到此结束，谢谢各位~