文件名称：实现数据库的备份的恢复
文件大小：8KB
文件格式：TXT
更新时间：2011-06-15 03:40:39
备份 恢复 数据库
namespace Magicbit.Framework
{
public
partial
class DBTools : Form
{
private
static DBTools _Instance =
null;
public
static DBTools Instance()
{
if (_Instance ==
null)
{
_Instance =
new DBTools();
}
else
{
MessageBox.Show("已经有一个实例在运行！");
}
return _Instance;
}
public DBTools()
{
InitializeComponent();
}
private
void BackAndRecoverDB_Load(object sender, EventArgs e)
{
this.txtSavePath.Text = Application.StartupPath;
//this.GetSQLServerList();
}
private
void GetSQLServerList()
{
//get all available SQL Servers
SQLDMO._Application sqlApp =
new SQLDMO.ApplicationClass();
SQLDMO.NameList sqlServers = sqlApp.ListAvailableSQLServers();
for (int i =
0; i < sqlServers.Count; i++)
{
object srv = sqlServers.Item(i +
1);
if (srv !=
null)
{
this.cboServers.Items.Add(srv);
}
}
if (this.cboServers.Items.Count >
0)
this.cboServers.SelectedIndex =
0;
else
this.cboServers.Text =
"
}
private
void GetBackUpDB()
{
SQLDMO.Application sqlApp =
new SQLDMO.ApplicationClass();
SQLDMO.SQLServer srv =
new SQLDMO.SQLServer();
srv.Connect(this.cboServers.Text.Trim(),this.txtUserName.Text.Trim(),this.txtPassword.Text.Trim());
foreach (SQLDMO.Database db in srv.Databases)
{
if (db.Name !=
null)
this.cboDatabase.Items.Add(db.Name);
}
}
private
void pictureBox1_Click(object sender, EventArgs e)
{
MessageBox.Show("欢迎使用数据库备份、还原工具，本工具将协助你备份和还原数据库，确保数据安全!", "备份您的数据库");
}
private
void button1_Click(object sender, EventArgs e)
{
this.GetBackUpDB();
}
private
void BackUpDB()
{
string selfName =
this.txtSavePath.Text.Trim() +
@"
"
+
this.cboDatabase.Text.Trim() +
"_"+ System.DateTime.Now.ToString("yyyyMMddHHmmss")+".DAT";
string deviceName =
this.cboDatabase.Text.Trim()+"bak";
string remark =
"数据备份";
//BACKUP DB
SQLDMO.Backup oBackup =
new SQLDMO.BackupClass();
SQLDMO.SQLServer oSQLServer =
new SQLDMO.SQLServerClass();
oBackup.Action =
0 ;
oBackup.Initialize =
true ;
SQLDMO.BackupSink_PercentCompleteEventHandler pceh =
new SQLDMO.BackupSink_PercentCompleteEventHandler(Step);
oBackup.PercentComplete += pceh;
try
{
oSQLServer.LoginSecure =
false;
oSQLServer.Connect(this.cboServers.Text.Trim(),this.txtUserName.Text.Trim(),this.txtPassword.Text.Trim());
oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
oBackup.Database =
this.cboDatabase.Text.Trim();//数据库名
oBackup.Files = selfName;//文件路径
oBackup.BackupSetName = deviceName;//备份名称
oBackup.BackupSetDescription = remark;//备份描述
oBackup.Initialize =
true;
oBackup.SQLBackup(oSQLServer);
}
catch(System.Exception ex)
{
MessageBox.Show("数据备份失败： "
+ ex.ToString());
}
finally
{
oSQLServer.DisConnect();
}
}
private
void Step(string message, int percent)
{
this.progressBar1.Value = percent;
}
private
void button2_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
this.label6.Visible =
true;
this.progressBar1.Visible =
true;
this.BackUpDB();
this.Cursor = Cursors.Default;
this.label6.Text =
"备份已完成.";
}
public
void RestoreDB()
{
string filePath =
this.txtBackUpFile.Text.Trim();
SQLDMO.Restore oRestore =
new SQLDMO.RestoreClass();
SQLDMO.SQLServer oSQLServer =
new SQLDMO.SQLServerClass();
oRestore.Action =
0 ;
SQLDMO.RestoreSink_PercentCompleteEventHandler pceh =
new SQLDMO.RestoreSink_PercentCompleteEventHandler(Step);
oRestore.PercentComplete += pceh;
try
{
oSQLServer.Connect(this.cboServers.Text.Trim(),this.txtUserName.Text.Trim(),this.txtPassword.Text.Trim());
SQLDMO.QueryResults qr = oSQLServer.EnumProcesses(-1) ;
int iColPIDNum =
-1 ;
int iColDbName =
-1 ;
//杀死其它的连接进程
for(int i=1;i<=qr.Columns;i++)
{
string strName = qr.get_ColumnName(i) ;
if (strName.ToUpper().Trim() ==
"SPID")
{
iColPIDNum = i ;
}
else
if (strName.ToUpper().Trim() ==
"DBNAME")
{
iColDbName = i ;
}
if (iColPIDNum !=
-1
&& iColDbName !=
-1)
break ;
}
for(int i=1;i<=qr.Rows;i++)
{
int lPID = qr.GetColumnLong(i,iColPIDNum) ;
string strDBName = qr.GetColumnString(i,iColDbName) ;
if (strDBName.ToUpper() ==
"CgRecord".ToUpper())
oSQLServer.KillProcess(lPID) ;
}
oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
oRestore.Database =
this.cboDBtoBackup.Text;
oRestore.Files = filePath;
oRestore.FileNumber =
1;
oRestore.ReplaceDatabase =
true;
oRestore.SQLRestore(oSQLServer);
}
catch(System.Exception ex)
{
MessageBox.Show("数据还原失败： "
+ ex.ToString());
}
finally
{
oSQLServer.DisConnect();
}
}
private
void button3_Click(object sender, EventArgs e)
{
this.folderBrowserDialog1.Description =
"请选择备份文件存放目录";
this.folderBrowserDialog1.ShowNewFolderButton =
true;
this.folderBrowserDialog1.ShowDialog();
this.txtSavePath.Text =
this.folderBrowserDialog1.SelectedPath;
}
private
void button4_Click(object sender, EventArgs e)
{
this.openFileDialog1.DefaultExt =
"*.dat";
this.openFileDialog1.Title =
"请选择要还原的数据库备份文件.";
this.openFileDialog1.ShowDialog();
this.txtBackUpFile.Text =
this.openFileDialog1.FileName;
}
private
void button5_Click(object sender, EventArgs e)
{
this.Cursor = Cursors.WaitCursor;
this.label6.Visible =
true;
this.progressBar1.Visible =
true;
this.RestoreDB();
this.Cursor = Cursors.Default;
this.label6.Text =
"还原已完成.";
}
}
}