mysql定时数据备份工具(c#)

此博文的出处 为 http://blog.csdn.net/zhujunxxxxx/article/details/40124773zhujunxxxxx@163.com ，如有问题请联系作者 为了确保数据的安全，我们往往要对数据进行备份。但是为了减少我们的工作量，我写了一个简单的数据备份工具，实现定时备份数据库。 其

此博文的出处 为 http://blog.csdn.net/zhujunxxxxx/article/details/40124773zhujunxxxxx@163.com，如有问题请联系作者

为了确保数据的安全，我们往往要对数据进行备份。但是为了减少我们的工作量，我写了一个简单的数据备份工具，实现定时备份数据库。

其实程序很简单，数据备份的工作就是几个mysql的命令而已。

先看看程序的运行界面

可以看到界面是十分的简单的

我们使用的是命令行来进行数据备份，所以我们的程序需要一个能够执行命令行的函数

/// 

        /// 执行Cmd命令
        /// 
        /// 要启动的进程的目录
        /// 要执行的命令
        public static void StartCmd(String workingDirectory, String command)
        {
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";
            p.StartInfo.WorkingDirectory = workingDirectory;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            p.StandardInput.WriteLine(command);
            p.StandardInput.WriteLine("exit");
        }

public void bakup_db()
        {
            try
            {
                //String command = "mysqldump --quick --host=localhost --default-character-set=gb2312 --lock-tables --verbose  --force --port=端口号 --user=用户名 --password=密码 数据库名 -r 备份到的地址";
                //构建执行的命令
                StringBuilder sbcommand = new StringBuilder();

                StringBuilder sbfileName = new StringBuilder();
                sbfileName.AppendFormat("{0}", DateTime.Now.ToShortDateString()).Replace("-", "").Replace(":", "").Replace(" ", "").Replace("/", "");
                String fileName = sbfileName.ToString();
                String directory = bakpath + fileName+".bak";

                sbcommand.AppendFormat("mysqldump --quick --host=localhost --default-character-set=utf8 --lock-tables --verbose  --force --port=3306 --user={0} --password={1} {2} -r \"{3}\"", uname, upass, dbname, directory);
                String command = sbcommand.ToString();

                //获取mysqldump.exe所在路径
                //String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";
                StartCmd(appDirecroty, command);
            }
            catch (Exception ex)
            {
            }
        }

 public void recovery_db()
        {
            //string s = "mysql --port=端口号 --user=用户名 --password=密码 数据库名<还原文件所在路径";
            try
            {
                StringBuilder sbcommand = new StringBuilder();

                OpenFileDialog openFileDialog = new OpenFileDialog();

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    String directory = openFileDialog.FileName;

                    //在文件路径后面加上""避免空格出现异常
                    sbcommand.AppendFormat("mysql --host=localhost --default-character-set=utf8 --port=3306 --user={0} --password={1} {2}<\"{3}\"",uname,upass,dbname,directory);
                    String command = sbcommand.ToString();

                    //获取mysql.exe所在路径
                    //String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";

                    DialogResult result = MessageBox.Show("您是否真的想覆盖以前的数据库吗？那么以前的数据库数据将丢失！！！", "警告", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
                    if (result == DialogResult.Yes)
                    {
                        StartCmd(appDirecroty, command);
                        MessageBox.Show("数据库还原成功！");
                    }
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show("数据库还原失败！");
            }
        }

private void timer1_Tick(object sender, EventArgs e)
        {
            int h = DateTime.Now.Hour;
            if (h == hour)
            {
                bakup_db();
            }
        }

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Diagnostics;

namespace MysqlBak
{
    public partial class Form1 : Form
    {
        //备份文件的路径
        public String bakpath="d:\\db_bak\\";
        public String appDirecroty = @"C:\Program Files (x86)\MySQL\MySQL Server 6.0\bin";
        public String uname = "root";
        public String upass = "root";
        public String dbname = "losscar_db";
        public int hour=18;
        public Form1()
        {
            InitializeComponent();
            timer1.Interval=1000*10;
            timer1.Start();
            txt_uname.Text = uname;
            txt_upass.Text = upass;
            txt_dbname.Text = dbname;
            txt_bakpath.Text = bakpath;
            txt_mysql.Text = appDirecroty;
            txt_hour.Text = hour.ToString();
        }

        /// 

        /// 执行Cmd命令
        /// 
        /// 要启动的进程的目录
        /// 要执行的命令
        public static void StartCmd(String workingDirectory, String command)
        {
            Process p = new Process();
            p.StartInfo.FileName = "cmd.exe";
            p.StartInfo.WorkingDirectory = workingDirectory;
            p.StartInfo.UseShellExecute = false;
            p.StartInfo.RedirectStandardInput = true;
            p.StartInfo.RedirectStandardOutput = true;
            p.StartInfo.RedirectStandardError = true;
            p.StartInfo.CreateNoWindow = true;
            p.Start();
            p.StandardInput.WriteLine(command);
            p.StandardInput.WriteLine("exit");
        }

        private void btn_bak_Click(object sender, EventArgs e)
        {
            try
            {
                //String command = "mysqldump --quick --host=localhost --default-character-set=gb2312 --lock-tables --verbose  --force --port=端口号 --user=用户名 --password=密码 数据库名 -r 备份到的地址";
                //构建执行的命令
                StringBuilder sbcommand = new StringBuilder();

                StringBuilder sbfileName = new StringBuilder();
                sbfileName.AppendFormat("{0}", DateTime.Now.ToShortDateString()).Replace("-", "").Replace(":", "").Replace(" ", "").Replace("/", "");
                String fileName = sbfileName.ToString();
                String directory = bakpath + fileName + ".bak";

                sbcommand.AppendFormat("mysqldump --quick --host=localhost --default-character-set=utf8 --lock-tables --verbose  --force --port=3306 --user={0} --password={1} {2} -r \"{3}\"", uname, upass, dbname, directory);
                String command = sbcommand.ToString();

                //获取mysqldump.exe所在路径
                //String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";
                StartCmd(appDirecroty, command);

                MessageBox.Show(@"数据库已成功备份到 " + directory + " 文件中", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
            }
            catch (Exception ex)
            {
                MessageBox.Show("数据库备份失败！");
            }

        }

        public void bakup_db()
        {
            try
            {
                //String command = "mysqldump --quick --host=localhost --default-character-set=gb2312 --lock-tables --verbose  --force --port=端口号 --user=用户名 --password=密码 数据库名 -r 备份到的地址";
                //构建执行的命令
                StringBuilder sbcommand = new StringBuilder();

                StringBuilder sbfileName = new StringBuilder();
                sbfileName.AppendFormat("{0}", DateTime.Now.ToShortDateString()).Replace("-", "").Replace(":", "").Replace(" ", "").Replace("/", "");
                String fileName = sbfileName.ToString();
                String directory = bakpath + fileName+".bak";

                sbcommand.AppendFormat("mysqldump --quick --host=localhost --default-character-set=utf8 --lock-tables --verbose  --force --port=3306 --user={0} --password={1} {2} -r \"{3}\"", uname, upass, dbname, directory);
                String command = sbcommand.ToString();

                //获取mysqldump.exe所在路径
                //String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";
                StartCmd(appDirecroty, command);
            }
            catch (Exception ex)
            {
            }
        }

        private void btn_recovery_Click(object sender, EventArgs e)
        {
            recovery_db();
        }

        public void recovery_db()
        {
            //string s = "mysql --port=端口号 --user=用户名 --password=密码 数据库名<还原文件所在路径";
            try
            {
                StringBuilder sbcommand = new StringBuilder();

                OpenFileDialog openFileDialog = new OpenFileDialog();

                if (openFileDialog.ShowDialog() == DialogResult.OK)
                {
                    String directory = openFileDialog.FileName;

                    //在文件路径后面加上""避免空格出现异常
                    sbcommand.AppendFormat("mysql --host=localhost --default-character-set=utf8 --port=3306 --user={0} --password={1} {2}<\"{3}\"",uname,upass,dbname,directory);
                    String command = sbcommand.ToString();

                    //获取mysql.exe所在路径
                    //String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";

                    DialogResult result = MessageBox.Show("您是否真的想覆盖以前的数据库吗？那么以前的数据库数据将丢失！！！", "警告", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
                    if (result == DialogResult.Yes)
                    {
                        StartCmd(appDirecroty, command);
                        MessageBox.Show("数据库还原成功！");
                    }
                }

            }
            catch (Exception ex)
            {
                MessageBox.Show("数据库还原失败！");
            }
        }

        private void btn_edit_Click(object sender, EventArgs e)
        {
            
            if (btn_edit.Text=="修改")
            {
                txt_dbname.Enabled = true;
                txt_uname.Enabled = true;
                txt_upass.Enabled = true;
                txt_bakpath.Enabled = true;
                txt_mysql.Enabled = true;
                txt_hour.Enabled = true;
                btn_edit.Text = "确定";
            }
            else if (btn_edit.Text == "确定")
            {
                uname = txt_uname.Text;
                upass = txt_upass.Text;
                dbname = txt_dbname.Text;
                appDirecroty = txt_mysql.Text;
                bakpath = txt_bakpath.Text;
                hour = int.Parse(txt_hour.Text);

                MessageBox.Show("修改成功!");
                btn_edit.Text = "修改";

                txt_dbname.Enabled = false;
                txt_uname.Enabled = false;
                txt_upass.Enabled = false;
                txt_bakpath.Enabled = false;
                txt_mysql.Enabled = false;
                txt_hour.Enabled = false;
            }

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            int h = DateTime.Now.Hour;
            if (h == hour)
            {
                bakup_db();
            }
        }

    }
}