基于ASP.NET几十万数据几秒钟就可以导入到数据库中

        /// <summary>
        /// 一、构建模拟数据存放于DataTable
        /// </summary>
        /// <returns>DataTable</returns>
        public DataTable GetData()
        {
            DataTable dt = new DataTable();

            dt.Columns.Add("MemberID", typeof(int));//为新的Datatable添加一个新的列名
            dt.Columns.Add("Body", typeof(string));//为新的Datatable添加一个新的列名
            dt.Columns.Add("IsSecret", typeof(int));//为新的Datatable添加一个新的列名
            dt.Columns.Add("AdminReply", typeof(string));//为新的Datatable添加一个新的列名
            dt.Columns.Add("AdminReplyTime", typeof(DateTime));
            dt.Columns.Add("CreateTime", typeof(DateTime));
            
            for (int i = 0; i < 100000; i++) //开始循环赋值
            {
                DataRow row = dt.NewRow(); //创建一个行
                row["MemberID"] = 123; //从总的Datatable中读取行数据赋值给新的Datatable
                row["Body"] = "留言了:" + (i + 1).ToString();
                row["IsSecret"] = 0;
                row["AdminReply"] = "回复了:" + (i + 1).ToString();
                row["AdminReplyTime"] = DateTime.Now;
                row["CreateTime"] = DateTime.Now.AddMonths(-4);
                dt.Rows.Add(row);//添加次行
            }
            return dt;
        }
        /// <summary>
        /// 二、实例的数据源中的列与该实例的目标表中的列之间的映射
        /// </summary>
        /// <returns></returns>
        public SqlBulkCopyColumnMapping[] GetMapping()
        {
            SqlBulkCopyColumnMapping[] mapping = new SqlBulkCopyColumnMapping[6];
            mapping[0] = new SqlBulkCopyColumnMapping("MemberID", "MemberID");
            mapping[1] = new SqlBulkCopyColumnMapping("Body", "Body");
            mapping[2] = new SqlBulkCopyColumnMapping("IsSecret", "IsSecret");
            mapping[3] = new SqlBulkCopyColumnMapping("AdminReply", "AdminReply");
            mapping[4] = new SqlBulkCopyColumnMapping("AdminReplyTime", "AdminReplyTime");
            mapping[5] = new SqlBulkCopyColumnMapping("CreateTime", "CreateTime");
            return mapping;
        }


        /// <summary>
        /// DataTable批量添加(有事务)
        /// </summary>
        /// <param name="Table">数据源DataTable</param>
        /// <param name="DestinationTableName">目标表即需要插入数据的数据表名称如"Message"</param>
        public bool MySqlBulkCopy(DataTable Table, string DestinationTableName)
        {
            bool Bool = true;
            using (SqlConnection con = new SqlConnection(DbHelperSQL.connectionString))
            {
                con.Open();
                using (SqlTransaction Tran = con.BeginTransaction())//应用事物
                {
                    using (SqlBulkCopy Copy = new SqlBulkCopy(con, SqlBulkCopyOptions.KeepIdentity, Tran))
                    {
                        Copy.DestinationTableName = DestinationTableName;//指定目标表
                        SqlBulkCopyColumnMapping[] Mapping = GetMapping();//获取映射关系
                        if (Mapping != null)
                        {
                            //如果有数据
                            foreach (SqlBulkCopyColumnMapping Map in Mapping)
                            {
                                Copy.ColumnMappings.Add(Map);
                            }
                        }
                        try
                        {
                            Copy.WriteToServer(Table);//批量添加
                            Tran.Commit();//提交事务
                        }
                        catch
                        {
                            Tran.Rollback();//回滚事务
                            Bool = false;
                        }
                    }
                }
            }
            return Bool;
        }


        public ActionResult InsertMoreData() 
        {
            MySqlBulkCopy(GetData(), "Message");
            return RedirectToAction("Index");
        }