WINFrom Excal 数据导入数据库

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
 
using System.Data.SQLite;
using System.Data.OleDb;
using System.IO;
 
using MySql.Data.MySqlClient;
 
using Dapper;
using  *******.DataDefine;  //数据库引用
 
namespace LangLibSpeakingImport
{
    public partial class Import : Form
    {
        public Import()
        {
            InitializeComponent();
        }
        private void button2_Click(object sender, EventArgs e)
        {
            string excelName = string.Empty;
            string dirName = Path .Combine(Directory.GetCurrentDirectory(), "root" );//bin目录下的文件夹的文件名
            string[] subDirs = Directory.GetDirectories(dirName);
 
            List<SK_SysTopicInfo > topicList = new List <SK_SysTopicInfo>();
 
            foreach (string dNames in subDirs)
            {
                string dirSeName = Path .Combine(Directory.GetCurrentDirectory(), dNames);
                string[] subSeDirs = Directory.GetDirectories(dirSeName);                                //获取文件夹下子文件夹下的子Excel的路径
                foreach (string secName in subSeDirs)
                {
                    try
                    {
                        excelName = secName.Substring(secName.LastIndexOf(@"\" ) + 1, 4);
                        string fileName = Path .Combine(secName, excelName + ".xlsx" );      //获取文件夹下子文件夹下的子Excel的路径
 
                        var connectionString = string .Format("Provider=Microsoft.ACE.OLEDB.12.0; Data Source={0}; Extended Properties=Excel 12.0;", fileName);  //连接Excel表的数据
 
                        var adapter1 = new OleDbDataAdapter( "SELECT * FROM [SK_SysTopic$]", connectionString);   //Excel表的share名
                      
                        var ds = new DataSet();
 
                        adapter1.Fill(ds, "SysTopicDatas" );
 
                        DataTable readingTopicTable = ds.Tables["SysTopicDatas" ];
                        foreach (DataRow row in readingTopicTable.Rows)
                        {
                            SK_SysTopicInfo topicQuest = new SK_SysTopicInfo ();
                            topicQuest.Id = Convert.ToString(row["Id"]);//字段名
                            topicQuest.TitleText = Convert .ToString(row["TitleText"]);//字段名
                            topicQuest.MediaLength = Convert .ToString(row["MediaLength"]);//字段名
                            topicQuest.Difficulty = Convert .ToString(row["Difficulty"]);//字段名
                            topicQuest.Source = Convert.ToString(row["Source"]);//字段名
                            topicQuest.Scene = Convert.ToString(row["Scene"]);//字段名
                            topicList.Add(topicQuest);
                        }
                        using (MySql.Data.MySqlClient.MySqlConnection connection = new MySql.Data.MySqlClient.MySqlConnection ("Server=*******;Database=***;Uid=**;Pwd=****;Charset=utf8;" ))//连接数据库
                        {
                            try
                            {
                                connection.Open();
                                connection.Execute( "delete from SK_SysTopic" );
                                connection.Execute( "Insert into SK_SysTopic(Id, TitleText, MediaLength, Difficulty, Source, Scene) values(@Id, @TitleText, @MediaLength, @Difficulty, @Source, @Scene)", topicList);//添加数据
                            }
                            catch (Exception )
                            {
                                throw;
                            }
                        }
                    }
                    catch (Exception ex)
                    {
                        this.textBox1.Text += string.Format( "{0} Exception caught.", ex);
                    }
                }
            }
        }
    }
}
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