ASP.NET備份/恢複資料庫

 /********************************************************************************** * * 功能說明:備份和恢複SQL Server資料庫 * 作者: 劉功勳; * 版本:V0.1(C#2.0);時間:2007-1-1 * 當使用SQL Server時,請引用 COM組件中的,SQLDMO.dll組件 * 當使用Access中,請瀏覽添加引用以下兩個dll *          引用C:\Program Files\Common Files\System\ado\msadox.dll,該DLL包含ADOX命名空間 *          引用C:\Program Files\Common Files\System\ado\msjro.dll,該DLL包含JRO命名空間 * *******************************************************************************/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;//該命名空間包含建立ACCESS的類(方法)--解決方案 ==> 引用 ==> 添加引用 ==> 遊覽找到.dllusing JRO;//該命名空間包含壓縮ACCESS的類(方法)namespace EC{    /// <summary>    /// 資料庫恢複和備份    /// </summary>    public class SqlBackObject    {        public SqlBackObject()        {            //            // TODO: 在此處添加建構函式邏輯            //        }        #region SQLDatabase Backup       /// <summary>        /// SQLDatabase Backup       /// </summary>       /// <param name="ServerIP">SQL伺服器IP或(Localhost)</param>       /// <param name="LoginName">資料庫登入名稱</param>       /// <param name="LoginPass">資料庫登入密碼</param>       /// <param name="DBName">資料庫名</param>       /// <param name="BackPath">備份到的路徑</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 = "Database Backup";                oBackup.Initialize = true;                oBackup.SQLBackup(oSQLServer);            }            catch (Exception e)            {                throw new Exception(e.ToString());            }            finally            {                oSQLServer.DisConnect();            }        }        #endregion        #region SQL恢複資料庫        /// <summary>        /// SQL恢複資料庫        /// </summary>        /// <param name="ServerIP">SQL伺服器IP或(Localhost)</param>        /// <param name="LoginName">資料庫登入名稱</param>        /// <param name="LoginPass">資料庫登入密碼</param>        /// <param name="DBName">要還原的資料庫名</param>        /// <param name="BackPath">Database Backup的路徑</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        #region 根據指定的檔案名稱建立Access資料庫        /// <summary>        /// 根據指定的檔案名稱建立資料        /// </summary>        /// <param name="DBPath">絕對路徑+檔案名稱</param>        public static void CreateAccess(string DBPath)        {            if (File.Exists(DBPath))//檢查資料庫是否已存在            {                throw new Exception("目標資料庫已存在,無法建立");            }                      DBPath = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;            //建立一個CatalogClass對象執行個體            ADOX.CatalogClass cat = new ADOX.CatalogClass();            //使用CatalogClass對象的Create方法建立ACCESS資料庫            cat.Create(DBPath);        }        #endregion        #region 壓縮Access資料庫        /// <summary>        /// 壓縮Access資料庫        /// </summary>        /// <param name="DBPath">資料庫絕對路徑</param>        public static void CompactAccess(string DBPath)        {            if (!File.Exists(DBPath))            {                throw new Exception("目標資料庫不存在,無法壓縮");            }                      //聲明臨時資料庫名稱            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;            //定義臨時資料庫的連接字串            string temp2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+temp;            //定義目標資料庫的連接字串            string DBPath2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath;            //建立一個JetEngineClass對象的執行個體            JRO.JetEngineClass jt = new JRO.JetEngineClass();            //使用JetEngineClass對象的CompactDatabase方法壓縮修複資料庫            jt.CompactDatabase(DBPath2, temp2);            //拷貝臨時資料庫到目標資料庫(覆蓋)            File.Copy(temp, DBPath, true);            //最後刪除臨時資料庫            File.Delete(temp);        }        #endregion        #region 備份Access資料庫        /// <summary>        /// 備份Access資料庫        /// </summary>        /// <param name="srcPath">要備份的資料庫絕對路徑</param>        /// <param name="aimPath">備份到的資料庫絕對路徑</param>        /// <returns></returns>        public static void Backup(string srcPath,string aimPath)        {                       if (!File.Exists(srcPath))            {                throw new Exception("來源資料庫不存在,無法備份");            }            try            {                File.Copy(srcPath,aimPath,true);            }            catch(IOException ixp)            {                throw new Exception(ixp.ToString());            }                   }        #endregion        #region 還原Access資料庫        /// <summary>        /// 還原Access資料庫        /// </summary>        /// <param name="bakPath">備份的資料庫絕對路徑</param>        /// <param name="dbPath">要還原的資料庫絕對路徑</param>        public static void RecoverAccess(string bakPath,string dbPath)        {                      if (!File.Exists(bakPath))            {                throw new Exception("備份資料庫不存在,無法還原");            }            try            {                File.Copy(bakPath, dbPath, true);            }            catch (IOException ixp)            {                throw new Exception(ixp.ToString());            }               }               #endregion    }}