C# MySql 数据数据备份与还原

需要先下载MySql.exe  和MySqlDump.exe

备份：

/// 

        /// 数据库备份
        /// 
        /// 0-数据库地址  1-端口  2-用户名  3-密码  4-数据库名称
        private void DataBeiFen(string[] ary)
        {
            try
            {
                #region 数据备份
                //System.Windows.Forms.SaveFileDialog saveFile = new System.Windows.Forms.SaveFileDialog();
                //saveFile.InitialDirectory = "BackData" + "\\";//默认路径
                //saveFile.FilterIndex = 1;        //默认值为第一个
                //saveFile.RestoreDirectory = true;      //重新定位保存路径
                //saveFile.Filter = "备份文件 (*.bak)|*.bak|所有文件 (*.*)|*.*";//筛选器，定义文件类型
                //if (saveFile.ShowDialog() == DialogResult.OK)
                //{


                //    if (!File.Exists(saveFile.FileName.ToString())) //判断是否有重名
                //    {
                //        string sqlStr = "BACKUP DATABASE power_ii TO DISK = '" + saveFile.FileName.ToString() + "'";
                //        if (BackUpBll.ExecuteSql(sqlStr) > 0)
                //        {
                //            MessageBox.Show("数据备份成功！", "提示对话框");
                //        }
                //    }
                //    else
                //    {
                //        MessageBox.Show("请重新命名！", "提示对话框");
                //    }
                //} 
                #endregion
                System.Windows.Forms.SaveFileDialog saveFile = new System.Windows.Forms.SaveFileDialog();
                saveFile.InitialDirectory = "BackData" + "\\";//默认路径
                saveFile.FilterIndex = 1;        //默认值为第一个
                saveFile.RestoreDirectory = true;      //重新定位保存路径
                saveFile.Filter = "备份文件 (*.bak)|*.bak|所有文件 (*.*)|*.*";//筛选器，定义文件类型
                if (saveFile.ShowDialog() == DialogResult.OK)
                {


                    if (!File.Exists(saveFile.FileName.ToString())) //判断是否有重名
                    {
                        string host = ary[0];
                        string port = ary[1];
                        string user = ary[2];
                        string password = ary[3];
                        string database = ary[4];
                        string fileName = database + "_bak_" + DateTime.Now.ToString("yyyyMMddhhmmss");
                        string cmdStr = "mysqldump -h" + host + " -P" + port + " -u" + user + " -p" + password + " " + database + " > " + saveFile.FileName.ToString();
                        //System.Diagnostics.Process.Start("cmd", cmdStr);
                        System.Diagnostics.Process p = new System.Diagnostics.Process();
                        p.StartInfo.FileName = "cmd.exe";//要执行的程序名称
                        p.StartInfo.UseShellExecute = false;
                        p.StartInfo.WorkingDirectory = System.Windows.Forms.Application.StartupPath + "\\";
                        p.StartInfo.RedirectStandardInput = true;//可能接受来自调用程序的输入信息
                        p.StartInfo.RedirectStandardOutput = true;//由调用程序获取输出信息
                        p.StartInfo.CreateNoWindow = true;//不显示程序窗口
                        p.Start();//启动程序
                        p.StandardInput.WriteLine(cmdStr);
                        p.StandardInput.WriteLine("exit");
                        MessageBox.Show("数据库已成功备份", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
                    }
                    else
                    {
                        MessageBox.Show("无法替换文件，请重新命名！", "提示对话框");
                    }
                }
            }
            catch (Exception ex)
            {
                errorlog.WriLog(ErrorLog.LogType.Error, "异常", ex);
                return;
            }
        }

还原：

/// 

        /// 数据库恢复
        /// 
        /// 0-数据库地址  1-端口  2-用户名  3-密码  4-数据库名称
        private void DataRestore(string[] ary)
        {
            System.Windows.Forms.OpenFileDialog openFile = new System.Windows.Forms.OpenFileDialog();
            openFile.InitialDirectory = "BackData" + "\\";//默认路径
            openFile.FilterIndex = 1;
            openFile.Filter = "备份文件 (*.bak)|*.bak|所有文件 (*.*)|*.*";//筛选器，定义文件类型
            if (openFile.ShowDialog() == DialogResult.OK)
            {
                string path = openFile.FileName;//获得备份路径
                BackUpBll.ExecuteSql("CREATE DATABASE " + ary[4] + "");
                try
                {
                    string host = ary[0];
                    string port = ary[1];
                    string user = ary[2];
                    string password = ary[3];
                    string database = ary[4];
                    string fileName = database + "_bak_" + DateTime.Now.ToString("yyyyMMddhhmmss");
                    string cmdStr = "mysql -h"+host+" -P"+port+" -u"+user+" -p"+password+" "+database+"  < " + path + "";
                    System.Diagnostics.Process p = new System.Diagnostics.Process();
                    p.StartInfo.FileName = "cmd.exe";//要执行的程序名称
                    p.StartInfo.UseShellExecute = false;
                    p.StartInfo.WorkingDirectory = System.Windows.Forms.Application.StartupPath + "\\";
                    p.StartInfo.RedirectStandardInput = true;//可能接受来自调用程序的输入信息
                    p.StartInfo.RedirectStandardOutput = true;//由调用程序获取输出信息
                    p.StartInfo.CreateNoWindow = true;//不显示程序窗口
                    p.Start();//启动程序
                    p.StandardInput.WriteLine(cmdStr);
                    p.StandardInput.WriteLine("exit");
                   DialogResult result= MessageBox.Show("数据加载成功，单击OK将重启软件！","提示",MessageBoxButtons.OK,MessageBoxIcon.Information);
                   if (result == DialogResult.OK)
                   {
                       if (_main != null)
                       {
                           _main.RestartState = 1;
                           Application.Restart();
                       }
                   }
                }
                catch (Exception ex)
                {
                    errorlog.WriLog(ErrorLog.LogType.Error, "异常", ex);
                    return;
                }
            }
        }