C#实现XML大批量数据插入数据库

现有一XML文件，其中包含443676条信息，主要用于记录点的XY坐标。XML文件如下图所示：

现在需要将XML文件中的坐标信息导入SqlServer，数据表[TPoint]如下图所示，其中Id为自增主键，X和Y为float类型字段：

实现代码如下：

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Xml;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        /// <summary>
        /// 导入数据
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnImport_Click(object sender, EventArgs e)
        {
            DataTable dataTable = GetDataTable(@"C:\Users\DSF\Desktop\point.xml");
            Insert(dataTable);
        }

        /// <summary>
        /// 读取XML，生成DataTable
        /// </summary>
        /// <param name="filePath"></param>
        /// <returns></returns>
        private DataTable GetDataTable(string filePath)
        {
            // 加载XML
            XmlDocument document = new XmlDocument();
            document.Load(filePath);

            // 获取子节点
            XmlNode root = document.SelectSingleNode("root");
            XmlNodeList childs = root.ChildNodes;

            // 创建数据列
            DataTable dataTable = new DataTable("TPoint");
            dataTable.Columns.Add("Id", typeof(int));
            dataTable.Columns.Add("X", typeof(double));
            dataTable.Columns.Add("Y", typeof(double));

            // 读取XY坐标
            foreach (XmlNode child in childs)
            {
                DataRow dataRow = dataTable.NewRow();
                dataRow[1] = double.Parse(child.SelectSingleNode("x").InnerText);
                dataRow[2] = double.Parse(child.SelectSingleNode("y").InnerText);
                dataTable.Rows.Add(dataRow);
            }
            return dataTable;
        }

        /// <summary>
        /// 批量插入数据库
        /// </summary>
        /// <param name="dataTable"></param>
        private void Insert(DataTable dataTable)
        {
            using (SqlBulkCopy bulk = new SqlBulkCopy("Data Source=DSF-PC;Initial Catalog=Test;User ID=sa;Password=123456"))
            {
                bulk.DestinationTableName = dataTable.TableName;
                bulk.BatchSize = dataTable.Rows.Count;
                bulk.WriteToServer(dataTable);
            }
        }
    }
}

批量插入数据时应选用SqlBulkCopy，其速度较快，程序运行结果如下图所示：