public class MySqlInstance  {    //連接字符串    private static string mySqlConnectionStr = "Server =localhost;Database=test;Uid=root;Pwd=password.1;";    private static MySqlConnection _mysqlConnect;    private static MySqlConnection mysqlConnect    {      get      {        if (null == _mysqlConnect)        {          _mysqlConnect = new MySqlConnection(mySqlConnectionStr);        }        return _mysqlConnect;      }    }    private static MySqlCommand _mysqlCommand;    private static MySqlCommand mysqlCommand    {      get      {        if (null == _mysqlCommand)        {          _mysqlCommand = mysqlConnect.CreateCommand();        }        return _mysqlCommand;      }    }    //打開連接    public static void OpenConnect()    {      mysqlConnect.Open();    }    //關(guān)閉連接    public static void CloseConnect()    {      mysqlConnect.Close();    }    public static MySqlConnection Connection    {      get      {        return mysqlConnect;      }    }    //防注入方式的插入數(shù)據(jù)    //使用事務(wù) 10000插入，最后才一次事務(wù)提交    public static int InsertData(string Command, List<MySqlParameter> Params)    {      //程序時間監(jiān)控      Stopwatch sw = new Stopwatch();      //程序計時開始      sw.Start();      OpenConnect();      //事務(wù)開始      MySqlTransaction trans = mysqlConnect.BeginTransaction();      mysqlCommand.CommandText = Command;      mysqlCommand.Parameters.AddRange(Params.ToArray());      int count = 0;      for (int i = 0; i < 10000; i++)      {        if (mysqlCommand.ExecuteNonQuery() > 0)          count++;      }      //事務(wù)提交      trans.Commit();      CloseConnect();      mysqlCommand.Parameters.Clear();      //計時停止      sw.Stop();      TimeSpan ts2 = sw.Elapsed;      Console.WriteLine(ts2.TotalMilliseconds);      return count;    }    //查詢出來的是MySqlDataReader 要使用就不能關(guān)閉連接    public static MySqlDataReader SelectData(string sql)    {      Stopwatch sw = new Stopwatch();      sw.Start();      // OpenConnect();      MySqlCommand newcommond = new MySqlCommand(sql, mysqlConnect);      MySqlDataReader data = newcommond.ExecuteReader();      // CloseConnect();      sw.Stop();      TimeSpan ts2 = sw.Elapsed;      Console.WriteLine(ts2.TotalMilliseconds);      return data;    }    /// <summary>    /// 查詢出來的是數(shù)據(jù)集合    /// </summary>    /// <param name="sql"></param>    /// <returns></returns>    public static DataSet SelectDataSet(string sql)    {      MySqlCommand newcommond = new MySqlCommand(sql, mysqlConnect);      MySqlDataAdapter adapter = new MySqlDataAdapter();      adapter.SelectCommand = newcommond;      DataSet ds = new DataSet();      adapter.Fill(ds);      return ds;    }    //不安全插入 有注入    public static int InsertDataSql(string sql)    {      // OpenConnect();      mysqlCommand.CommandText = sql;      int count = mysqlCommand.ExecuteNonQuery();      // CloseConnect();      return count;    }    //安全插入 參數(shù)使用@    //不使用事務(wù) 10000次插入    public static int InsertDataNoTran(string Command, List<MySqlParameter> Params)    {      Stopwatch sw = new Stopwatch();      sw.Start();      OpenConnect();      mysqlCommand.CommandText = Command;      mysqlCommand.Parameters.AddRange(Params.ToArray());      int count = 0;      for (int i = 0; i < 10000; i++)      {        if (mysqlCommand.ExecuteNonQuery() > 0)          count++;      }      CloseConnect();      mysqlCommand.Parameters.Clear();      sw.Stop();      TimeSpan ts2 = sw.Elapsed;      Console.WriteLine(ts2.TotalMilliseconds);      return count;    }    //一次性拼10000個插入語句一次性提交    public static void test4()    {      Stopwatch sw = new Stopwatch();      sw.Start();      MySqlInstance.OpenConnect();      MySqlTransaction tran = MySqlInstance.Connection.BeginTransaction();      string command = string.Empty;      for (int i = 0; i < 10000; i++)      {        string temp = string.Format("insert into test.testtable(pname,pwd) value ('{0}','{1}'); /r/n", "name" + i, "password." + i);        command += temp;      }      MySqlInstance.InsertDataSql(command);      tran.Commit();      MySqlInstance.CloseConnect();      sw.Stop();      TimeSpan ts2 = sw.Elapsed;      Console.WriteLine(ts2.TotalMilliseconds);    } }

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using MySql.Data;using MySql.Web;using MySql.Data.MySqlClient;using System.Diagnostics;using System.Data;namespace mysqlDEMO01{  class Program  {    static void Main(string[] args)    {            testInsert();      Console.ReadLine();    }    //使用安全防注入 參數(shù)使用@ ，安全插入。    public static void testInsert()    {      List<MySqlParameter> lmp = new List<MySqlParameter>();      lmp.Add(new MySqlParameter("@pname", "hello2"));      lmp.Add(new MySqlParameter("@pwd", "1232"));      string command = " insert into test.testtable(pname,pwd) value(@pname,@pwd); ";      MySqlInstance.InsertData(command, lmp);      List<MySqlParameter> lmp2 = new List<MySqlParameter>();      lmp2.Add(new MySqlParameter("@pname", "hello2"));      lmp2.Add(new MySqlParameter("@pwd", "1232"));      MySqlInstance.InsertDataNoTran(command, lmp2);      test4();    }   }}