C#备份还原MySql数据库

原文:C#备份还原MySql数据库 项目结束，粘点代码出来让Google或Baidu一下，原因是现在还搜不到这么现成的

调用MySql的工具mysqldump来实现。

类Cmd来实现调用cmd命令，

要启动的进程所在的目录是说mysql自动的备份还原数据库工具mysqldump和mysql所在目录，当然，这个方法可以执行别的命令行工具。

using System;

using System.Collections.Generic;

using System.Text;

using System.Diagnostics;

public class Cmd

{

/// <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");

}

}

备份方法：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Diagnostics;

using System.Configuration;

using MDRClient.DataAccess;

namespace MDRClient

{

public partial class DataBackup : Form

{

public DataBackup()

{

InitializeComponent();

}

private void btnBackup_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.ToString()).Replace("-", "").Replace(":", "").Replace(" ", "");

String fileName = sbfileName.ToString();

SaveFileDialog saveFileDialog = new SaveFileDialog();

saveFileDialog.AddExtension = false;

saveFileDialog.CheckFileExists = false;

saveFileDialog.CheckPathExists = false;

saveFileDialog.FileName = fileName;

if (saveFileDialog.ShowDialog() == DialogResult.OK)

{

String directory = saveFileDialog.FileName;

sbcommand.AppendFormat("mysqldump --quick --host=localhost --default-character-set=gbk --lock-tables --verbose --force --port=端口号 --user=用户名 --password=密码 数据库名 -r \"{0}\"", directory);

String command = sbcommand.ToString();

//获取mysqldump.exe所在路径

String appDirecroty = System.Windows.Forms.Application.StartupPath + "\\";

Cmd.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！");

}

}

}

}

还原方法，调用的是mysql自带工具mysql，还原时要注意的是选择的文件所在路径时，文件名要是有空格的话会出

异常，所以在文件路径名加上双引号""

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Diagnostics;

using System.Configuration;

using MDRClient.DataAccess;

namespace MDRClient

{

public partial class DataRestore : Form

{

public DataRestore()

{

InitializeComponent();

}

private void btnRestore_Click(object sender, EventArgs e)

{

//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=gbk --port=端口号 --user=用户名 --password=密码 数据库<\"{0}\"", 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)

{

Cmd.StartCmd(appDirecroty, command);

MessageBox.Show("数据库还原成功！");

}

}

}

catch (Exception ex)

{

MessageBox.Show("数据库还原失败！");

}

}

}

}