這篇文章主要介紹了asp.net 備份和恢復數據庫的方法示例,需要的朋友可以參考下
代碼如下: /********************************************************************************** * * 功能說明:備份和恢復SQL Server數據庫 * 作者: 劉功勳; * 版本:V0.1(C#2.0); * 當使用SQL Server時,請引用 COM組件中的,SQLDMO.dll組件 * 當使用Access中,請浏覽添加引用以下兩個dll * 引用C:Program FilesCommon FilesSystemadomsadox.dll,該DLL包含ADOX命名空間 * 引用C:Program FilesCommon FilesSystemadomsjro.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;//該命名空間包含創建ACCESS的類(方法)--解決方案 ==> 引用 ==> 添加引用 ==> 游覽找到.dll using JRO;//該命名空間包含壓縮ACCESS的類(方法) namespace EC { /// <summary> /// 數據庫恢復和備份 /// </summary> public class SqlBackObject { public SqlBackObject() { // // TODO: 在此處添加構造函數邏輯 // } #region SQL數據庫備份 /// <summary> /// SQL數據庫備份 /// </summary> /// <param name="ServerIP">SQL服務器IP或(Localhost)</param> /// <param name="LoginName">數據庫登錄名</param> /// <param name="LoginPass">數據庫登錄密碼</param> /// <param name="DBName">數據庫名</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 = "數據庫備份"; oBackup.Initialize = true; oBackup.SQLBackup(oSQLServer); } catch (Exception e) { throw new Exception(e.ToString()); } finally { oSQLServer.DisConnect(); } } #endregion #region SQL恢復數據庫 /// <summary> /// SQL恢復數據庫 /// </summary> /// <param name="ServerIP">SQL服務器IP或(Localhost)</param> /// <param name="LoginName">數據庫登錄名</param> /// <param name="LoginPass">數據庫登錄密碼</param> /// <param name="DBName">要還原的數據庫名</param> /// <param name="BackPath">數據庫備份的路徑</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 根據指定的文件名稱創建Access數據庫 /// <summary> /// 根據指定的文件名稱創建數據 /// </summary> /// <param name="DBPath">絕對路徑+文件名稱</param> public static void CreateAccess(string DBPath) { if (File.Exists(DBPath))//檢查數據庫是否已存在 { throw new Exception("目標數據庫已存在,無法創建"); } DBPath = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath; //創建一個CatalogClass對象實例 ADOX.CatalogClass cat = new ADOX.CatalogClass(); //使用CatalogClass對象的Create方法創建ACCESS數據庫 cat.Create(DBPath); } #endregion #region 壓縮Access數據庫 /// <summary> /// 壓縮Access數據庫 /// </summary> /// <param name="DBPath">數據庫絕對路徑</param> public static void CompactAccess(string DBPath) { if (!File.Exists(DBPath)) { throw new Exception("目標數據庫不存在,無法壓縮"); } //聲明臨時數據庫名稱 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; //定義臨時數據庫的連接字符串 string temp2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+temp; //定義目標數據庫的連接字符串 string DBPath2 = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+DBPath; //創建一個JetEngineClass對象的實例 JRO.JetEngineClass jt = new JRO.JetEngineClass(); //使用JetEngineClass對象的CompactDatabase方法壓縮修復數據庫 jt.CompactDatabase(DBPath2, temp2); //拷貝臨時數據庫到目標數據庫(覆蓋) File.Copy(temp, DBPath, true); //最後刪除臨時數據庫 File.Delete(temp); } #endregion #region 備份Access數據庫 /// <summary> /// 備份Access數據庫 /// </summary> /// <param name="srcPath">要備份的數據庫絕對路徑</param> /// <param name="aimPath">備份到的數據庫絕對路徑</param> /// <returns></returns> public static void Backup(string srcPath,string aimPath) { if (!File.Exists(srcPath)) { throw new Exception("源數據庫不存在,無法備份"); } try { File.Copy(srcPath,aimPath,true); } catch(IOException ixp) { throw new Exception(ixp.ToString()); } } #endregion #region 還原Access數據庫 /// <summary> /// 還原Access數據庫 /// </summary> /// <param name="bakPath">備份的數據庫絕對路徑</param> /// <param name="dbPath">要還原的數據庫絕對路徑</param> public static void RecoverAccess(string bakPath,string dbPath) { if (!File.Exists(bakPath)) { throw new Exception("備份數據庫不存在,無法還原"); } try { File.Copy(bakPath, dbPath, true); } catch (IOException ixp) { throw new Exception(ixp.ToString()); } } #endregion } }
