Asp.net 备份、还原Ms SQLServer及压缩Access数据库

/**//**********************************************************************************


*


* 功能说明:备份和恢复SQL Server数据库


* 作者: 刘功勋;


* 版本:V0.1(C#2.0);时间:2007-1-1


* 当使用SQL Server时,请引用 COM组件中的,SQLDMO.dll组件


* 当使用Access中,请浏览添加引用以下两个dll


* 引用C:Program FilesCommon FilesSystemadomsadox.dll,该DLL包含ADOX命名空间


* 引用C:Program FilesCommon FilesSystemadomsjro.dll,该DLL包含JRO命名空间


* *******************************************************************************/


using System;


using System.Data;


using System.Configuration;


using System.Web;


using System.Web.Security;


using System.Web.UI;


using System.Web.UI.WebControls;


using System.Web.UI.WebControls.WebParts;


using System.Web.UI.HtmlControls;


using System.IO;


using ADOX;//该命名空间包含创建ACCESS的类(方法)--解决方案 ==> 引用 ==> 添加引用 ==> 游览找到.dll


using JRO;//该命名空间包含压缩ACCESS的类(方法)




namespace EC




...{




/**//// <summary>


/// 数据库恢复和备份


/// </summary>


public class SqlBackObject




...{


public SqlBackObject()




...{


//


// TODO: 在此处添加构造函数逻辑


//


}






SQL数据库备份#region SQL数据库备份




/**//// <summary>


/// SQL数据库备份


/// </summary>


/// <param name="ServerIP">SQL服务器IP或(Localhost)</param>


/// <param name="LoginName">数据库登录名</param>


/// <param name="LoginPass">数据库登录密码</param>


/// <param name="DBName">数据库名</param>


/// <param name="BackPath">备份到的路径</param>


public static void SQLBACK(string ServerIP,string LoginName,string LoginPass,string DBName,string BackPath)




...{


SQLDMO.Backup oBackup = new SQLDMO.BackupClass();


SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();


try




...{


oSQLServer.LoginSecure = false;


oSQLServer.Connect(ServerIP, LoginName, LoginPass);


oBackup.Database = DBName;


oBackup.Files = BackPath;


oBackup.BackupSetName = DBName;


oBackup.BackupSetDescription = "数据库备份";


oBackup.Initialize = true;


oBackup.SQLBackup(oSQLServer);




}


catch (Exception e)




...{


throw new Exception(e.ToString());


}


finally




...{


oSQLServer.DisConnect();


}


}


#endregion






SQL恢复数据库#region SQL恢复数据库




/**//// <summary>


/// SQL恢复数据库


/// </summary>


/// <param name="ServerIP">SQL服务器IP或(Localhost)</param>


/// <param name="LoginName">数据库登录名</param>


/// <param name="LoginPass">数据库登录密码</param>


/// <param name="DBName">要还原的数据库名</param>


/// <param name="BackPath">数据库备份的路径</param>




public static void SQLDbRestore(string ServerIP,string LoginName,string LoginPass,string DBName,string BackPath)




...{




SQLDMO.Restore orestore = new SQLDMO.RestoreClass();


SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();


try




...{


oSQLServer.LoginSecure = false;


oSQLServer.Connect(ServerIP, LoginName, LoginPass);


orestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;


orestore.Database = DBName;


orestore.Files = BackPath;


orestore.FileNumber = 1;


orestore.ReplaceDatabase = true;


orestore.SQLRestore(oSQLServer);




}


catch (Exception e)




...{


throw new Exception(e.ToString());


}


finally




...{


oSQLServer.DisConnect();


}


}






#endregion






根据指定的文件名称创建Access数据库#region 根据指定的文件名称创建Access数据库




/**//// <summary>


/// 根据指定的文件名称创建数据


/// </summary>


/// <param name="DBPath">绝对路径+文件名称</param>


public static void CreateAccess(string DBPath)




...{


if (File.Exists(DBPath))//检查数据库是否已存在




...{


throw new Exception("目标数据库已存在,无法创建");


}


DBPath = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;


//创建一个CatalogClass对象实例


ADOX.CatalogClass cat = new ADOX.CatalogClass();


//使用CatalogClass对象的Create方法创建ACCESS数据库


cat.Create(DBPath);




}


#endregion






压缩Access数据库#region 压缩Access数据库




/**//// <summary>


/// 压缩Access数据库


/// </summary>


/// <param name="DBPath">数据库绝对路径</param>


public static void CompactAccess(string DBPath)




...{


if (!File.Exists(DBPath))




...{


throw new Exception("目标数据库不存在,无法压缩");


}




//声明临时数据库名称


string temp = DateTime.Now.Year.ToString();


temp += DateTime.Now.Month.ToString();


temp += DateTime.Now.Day.ToString();


temp += DateTime.Now.Hour.ToString();


temp += DateTime.Now.Minute.ToString();


temp += DateTime.Now.Second.ToString() + ".bak";


temp = DBPath.Substring(0, DBPath.LastIndexOf("/") + 1) + temp;


//定义临时数据库的连接字符串


string temp2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+temp;


//定义目标数据库的连接字符串


string DBPath2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;


//创建一个JetEngineClass对象的实例


JRO.JetEngineClass jt = new JRO.JetEngineClass();


//使用JetEngineClass对象的CompactDatabase方法压缩修复数据库


jt.CompactDatabase(DBPath2, temp2);


//拷贝临时数据库到目标数据库(覆盖)


File.Copy(temp, DBPath, true);


//最后删除临时数据库


File.Delete(temp);


}


#endregion






备份Access数据库#region 备份Access数据库




/**//// <summary>


/// 备份Access数据库


/// </summary>


/// <param name="srcPath">要备份的数据库绝对路径</param>


/// <param name="aimPath">备份到的数据库绝对路径</param>


/// <returns></returns>


public static void Backup(string srcPath,string aimPath)




...{




if (!File.Exists(srcPath))




...{


throw new Exception("源数据库不存在,无法备份");


}


try




...{


File.Copy(srcPath,aimPath,true);


}


catch(IOException ixp)




...{


throw new Exception(ixp.ToString());


}




}




#endregion






还原Access数据库#region 还原Access数据库




/**//// <summary>


/// 还原Access数据库


/// </summary>


/// <param name="bakPath">备份的数据库绝对路径</param>


/// <param name="dbPath">要还原的数据库绝对路径</param>


public static void RecoverAccess(string bakPath,string dbPath)




...{


if (!File.Exists(bakPath))




...{


throw new Exception("备份数据库不存在,无法还原");


}


try




...{


File.Copy(bakPath, dbPath, true);


}


catch (IOException ixp)




...{


throw new Exception(ixp.ToString());


}


}


#endregion


}


}