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mysql定时数据备份工具(c#)
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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
/// <summary>
/// 执行Cmd命令
/// </summary>
/// <param name="workingDirectory">要启动的进程的目录</param>
/// <param name="command">要执行的命令</param>
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");
}接下来是一个备份数据库的函数
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)
{
}
}还原数据库
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！");
}
}为了实现定时备份，我们使用的是一个Timer组件，来实现定时的数据备份
private void timer1_Tick(object sender, EventArgs e)
{
int h = DateTime.Now.Hour;
if (h == hour)
{
bakup_db();
}
}给出完整的代码
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();
}
/// <summary>
/// 执行Cmd命令
/// </summary>
/// <param name="workingDirectory">要启动的进程的目录</param>
/// <param name="command">要执行的命令</param>
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();
}
}
}
}
mysql定时数据备份工具(c#)
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