SqlBulkCopy批量插入数据库

SqlBulkCopy批量插入数据库

        /// <summary>
        /// 批量插入数据库。
        /// </summary>
        /// <param name="dt">要插入数据库的表数据</param>
        /// <param name="tablename">表名</param>
        /// <returns></returns>
        public static int SqlBulkCopy(DataTable dt, string tablename)
        {
            int result = 0;
            SqlBulkCopy bulkCopy = null;

            try
            {
                using (SqlConnection conn = new SqlConnection(Const.ERPDBSqlConnentionString))
                {
                    conn.Open();
                    bulkCopy = new SqlBulkCopy(conn);
                    bulkCopy.DestinationTableName = tablename;
                    bulkCopy.BatchSize = dt.Rows.Count;
                    foreach (DataColumn dc in dt.Columns)
                    {
                        bulkCopy.ColumnMappings.Add(dc.ColumnName, dc.ColumnName);//将table中的列与数据库表这的列一一对应
                    }
                    if (dt != null && dt.Rows.Count > 0)
                    {
                        bulkCopy.WriteToServer(dt);
                        result = 1;
                    }
                }
            }
            catch (Exception ex)
            {
                WriteFile("执行插入动作后SqlBulkCopy:(" + DateTime.Now.ToString() + ") " + ex.ToString());
            }
            finally
            {
                if (bulkCopy != null)
                {
                    bulkCopy.Close();
                }
            }                        
            return result;
        }