原文:C#備份還原MySql數據庫

??????項目結束，粘點代碼出來讓Google或Baidu一下，原因是現在還搜不到這么現成的

??????調用MySql的工具mysqldump來實現。

??????類Cmd來實現調用cmd命令，
要啟動的進程所在的目錄是說mysql自動的備份還原數據庫工具mysqldump和mysql所在目錄，當然，這個方法可以執行別的命令行工具。

?

using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.Diagnostics;

????public?class?Cmd
????{
????????///?<summary>
????????///?執行Cmd命令
????????///?</summary>
????????///?<param?name="workingDirectory">要啟動的進程的目錄</param>
????????///?<param?name="command">要執行的命令</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");
????????}
????}

?

備份方法：

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=端口號?--user=用戶名?--password=密碼?數據庫名?-r?備份到的地址";

????????????????//構建執行的命令
????????????????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=端口號?--user=用戶名?--password=密碼?數據庫名?-r?\"{0}\"",?directory);
????????????????????String?command?=?sbcommand.ToString();

????????????????????//獲取mysqldump.exe所在路徑
????????????????????String?appDirecroty?=?System.Windows.Forms.Application.StartupPath?+?"\\";
????????????????????Cmd.StartCmd(appDirecroty,?command);
????????????????????MessageBox.Show(@"數據庫已成功備份到?"?+?directory?+?"?文件中",?"提示",?MessageBoxButtons.OK,?MessageBoxIcon.Information);
????????????????}

????????????}
????????????catch?(Exception?ex)
????????????{
????????????????MessageBox.Show("數據庫備份失敗！");
????????????????
????????????}
????????}
????????
????}
}

?

還原方法，調用的是mysql自帶工具mysql，還原時要注意的是選擇的文件所在路徑時，文件名要是有空格的話會出
異常，所以在文件路徑名加上雙引號""

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=端口號?--user=用戶名?--password=密碼?數據庫名<還原文件所在路徑";

????????????try
????????????{
????????????????StringBuilder?sbcommand?=?new?StringBuilder();

????????????????OpenFileDialog?openFileDialog?=?new?OpenFileDialog();

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

????????????????????//在文件路徑后面加上""避免空格出現異常
????????????????????sbcommand.AppendFormat("mysql?--host=localhost?--default-character-set=gbk?--port=端口號?--user=用戶名?--password=密碼?數據庫<\"{0}\"",?directory);
????????????????????String?command?=?sbcommand.ToString();

????????????????????//獲取mysql.exe所在路徑
????????????????????String?appDirecroty?=?System.Windows.Forms.Application.StartupPath?+?"\\";

????????????????????DialogResult?result?=?MessageBox.Show("您是否真的想覆蓋以前的數據庫嗎？那么以前的數據庫數據將丟失！！！",?"警告",?MessageBoxButtons.YesNo,?MessageBoxIcon.Warning);
????????????????????if?(result?==?DialogResult.Yes)
????????????????????{
????????????????????????Cmd.StartCmd(appDirecroty,?command);
????????????????????????MessageBox.Show("數據庫還原成功！");
????????????????????}
????????????????}
????????????????
????????????}
????????????catch?(Exception?ex)
????????????{
????????????????MessageBox.Show("數據庫還原失敗！");
????????????}

????????}
????????
????}
}

?

?

?

?

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