在.Net中进行SQL Server数据库备份与还原操作实用类

#region 类说明//-----------------------------------------------------------------------------//// 项目名称：***// 文件名称：DBBakManager.cs// 文件说明：对数据库备份文件进行管理。提供备份、还原、备份文件管理操作。//// 开始日期：2007年04月04日// 开发人员：***////-----------------------------------------------------------------------------#endregionusing System;using System.Collections.Generic;using System.IO;using System.Text;using SQLDMO;       //添加引用C:PRogram FilesMicrosoft SQL Server80ToolsBinnSQLDMO.dllnamespace GSIM.StuManager{    /// <summary>    /// 对SQL Server数据库备份文件进行管理。提供备份、还原、备份文件管理操作。    /// </summary>    public class DBBakManager    {        字段#region 字段        private string _serverName;        private string _userName;        private string _passWord;        private string _dbName;        #endregion        构造#region 构造        /// <summary>        /// 构造函数        /// </summary>        /// <param name="serverName">数据库服务器名        /// <param name="userName">数据库用户名        /// <param name="password">用户密码        /// <param name="dbName">数据库名        public DBBakManager(string serverName, string userName, string password,string dbName)        {            _serverName = serverName;            _userName = userName;            _password = password;            _dbName = dbName;        }        #endregion        方法#region 方法        /// <summary>        /// 备份数据库        /// </summary>        /// <param name="saveFileName">保存的备份文件路径(包括文件名,文件名格式为:"DBName(yyyyMMddHHmm).bak")        /// <returns>操作成功返回true,否则返回false</returns>        public bool BackUpDB(string saveFileName)        {            SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();            try            {                svr.Connect(_serverName, _userName, _password);                SQLDMO.Backup bak = new SQLDMO.BackupClass();                bak.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;                bak.Initialize = true;                bak.Database = _dbName;                bak.Files = saveFileName;                bak.SQLBackup(svr);                return true;            }            catch (Exception err)            {                return false;            }            finally            {                svr.Close();            }        }        /// <summary>        /// 还原数据库备份        /// </summary>        /// <param name="fileName">还原的备份文件路径(包括文件名,文件名格式为:"DBName(yyyyMMddHHmm).bak")        /// <returns>操作成功返回true,否则返回false</returns>        public bool RestoreDB(string fileName)        {            SQLDMO.SQLServer svr = new SQLDMO.SQLServerClass();            try            {                svr.Connect(_serverName, _userName, _password);                //取得所有的进程列表                SQLDMO.QueryResults qr = svr.EnumProcesses(-1);                int iColPIDNum = -1;                int iColDbName = -1;                //找到和要恢复数据库相关的进程                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;                }                //将相关进程关闭                               for (int i = 1; i <= qr.Rows; i++)                {                    int lPID = qr.GetColumnLong(i, iColPIDNum);                    string strDBName = qr.GetColumnString(i, iColDbName);                    if (strDBName.ToUpper() == _dbName)                        svr.KillProcess(lPID);                }                SQLDMO.Restore res = new SQLDMO.RestoreClass();                res.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;                res.Files = fileName;                res.Database = _dbName;                res.FileNumber = 1;                res.ReplaceDatabase = true;                res.SQLRestore(svr);                return true;            }            catch (Exception err)            {                return false;            }            finally            {                svr.Close();            }        }        /// <summary>        /// 获得所有数据库备份文件信息,如:200704041120.        /// </summary>        /// <param name="filePath">保存备份文件的文件夹路径(不包括文件名)        /// <returns>包含文件信息的字符串组</returns>        public string[] GetAllDBBak(string filePath)        {            string[] DBBakInfo = Directory.GetFiles(filePath, "BMIS*");            int start = DBBakInfo[0].IndexOf("(");            int end = DBBakInfo[0].IndexOf(")");            //除去多余部分,返回名字中的时间信息,如:200704041120.            for (int i = 0; i < DBBakInfo.Length; i++)            {                DBBakInfo[i] = DBBakInfo[i].Substring(start + 1, end - start - 1);            }            return DBBakInfo;        }        /// <summary>        /// 删除一个数据库备份文件        /// </summary>        /// <param name="fileName">删除的备份文件路径(包括文件名,文件名格式为:"DBName(yyyyMMddHHmm).bak")        /// <returns>操作成功返回true,否则返回false</returns>        public bool DeleteDBBak(string fileName)        {            if (File.Exists(fileName) == true)            {                File.Delete(fileName);                return true;            }            else            {                return false;            }        }        #endregion    }} <pre></pre>