c#实现数据库的备份和恢复

完整的操作类如下：

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using System;
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using System.Collections;
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using System.Data;
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using System.Data.SqlClient;
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namespace DbBackUp
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{
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/**//// <summary>
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/// 功能描述：实现数据库的备份和还原
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/// 更新记录：
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/// </summary>
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public class DbOperate
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{
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/**//// <summary>
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/// 服务器
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/// </summary>
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private string server;
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/**//// <summary>
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/// 登录名
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/// </summary>
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private string uid;
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/**//// <summary>
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/// 登录密码
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/// </summary>
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private string pwd;
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/**//// <summary>
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/// 要操作的数据库
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/// </summary>
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private string database;
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/**//// <summary>
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/// 数据库连接字符串
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/// </summary>
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private string conn;
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/**//// <summary>
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/// DbOperate类的构造函数
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/// 在这里进行字符串的切割，获取服务器，登录名，密码，数据库
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/// </summary>
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public DbOperate()
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{
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conn = System.Configuration.ConfigurationSettings.AppSettings["constr"].ToString();
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server = StringCut(conn,"server=",";");
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uid = StringCut(conn,"uid=",";");
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pwd = StringCut(conn,"pwd=",";");
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database = StringCut(conn,"database=",";");
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}
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/**//// <summary>
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/// 切割字符串
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/// </summary>
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/// <param name="str"></param>
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/// <param name="bg"></param>
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/// <param name="ed"></param>
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/// <returns></returns>
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public string StringCut(string str,string bg,string ed)
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{
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string sub;
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sub=str.Substring(str.IndexOf(bg)+bg.Length);
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sub=sub.Substring(0,sub.IndexOf(";"));
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return sub;
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}
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/**//// <summary>
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/// 构造文件名
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/// </summary>
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/// <returns>文件名</returns>
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private string CreatePath()
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{
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string CurrTime = System.DateTime.Now.ToString();
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CurrTime = CurrTime.Replace("-","");
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CurrTime = CurrTime.Replace(":","");
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CurrTime = CurrTime.Replace(" ","");
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CurrTime = CurrTime.Substring(0,12);
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string path = @"d://aaa//";
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path += database;
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path += "_db_";
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path += CurrTime;
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path += ".BAK";
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return path;
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}
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/**//// <summary>
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/// 数据库备份
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/// </summary>
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/// <returns>备份是否成功</returns>
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public bool DbBackup()
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{
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string path = CreatePath();
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SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
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SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
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try
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{
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oSQLServer.LoginSecure = false;
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oSQLServer.Connect(server,uid, pwd);
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oBackup.Action = SQLDMO.SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
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oBackup.Database = database;
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oBackup.Files = path;
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oBackup.BackupSetName = database;
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oBackup.BackupSetDescription = "数据库备份";
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oBackup.Initialize = true;
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oBackup.SQLBackup(oSQLServer);
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return true;
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}
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catch(Exception ex)
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{
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return false;
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throw ex;
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}
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finally
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{
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oSQLServer.DisConnect();
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}
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}
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/**//// <summary>
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/// 数据库恢复
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/// </summary>
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public string DbRestore()
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{
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if(exepro()!=true)//执行存储过程
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{
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return "操作失败";
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}
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else
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{
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SQLDMO.Restore oRestore = new SQLDMO.RestoreClass();
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SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
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try
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{
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exepro();
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oSQLServer.LoginSecure = false;
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oSQLServer.Connect(server, uid, pwd);
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oRestore.Action = SQLDMO.SQLDMO_RESTORE_TYPE.SQLDMORestore_Database;
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oRestore.Database = database;
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/**////自行修改
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oRestore.Files = @"d:/aaa/aaa.bak";
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oRestore.FileNumber = 1;
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oRestore.ReplaceDatabase = true;
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oRestore.SQLRestore(oSQLServer);
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return "ok";
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}
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catch(Exception e)
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{
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return "恢复数据库失败";
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throw e;
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}
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finally
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{
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oSQLServer.DisConnect();
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}
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}
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}
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/**//// <summary>
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/// 杀死当前库的所有进程
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/// </summary>
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/// <returns></returns>
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private bool exepro()
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{
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SqlConnection conn1 = new SqlConnection("server="+server+";uid="+uid+";pwd="+pwd+";database=master");
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SqlCommand cmd = new SqlCommand("killspid",conn1);
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cmd.CommandType = CommandType.StoredProcedure;
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cmd.Parameters.Add("@dbname","aaa");
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try
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{
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conn1.Open();
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cmd.ExecuteNonQuery();
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return true;
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}
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catch(Exception ex)
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{
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return false;
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}
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finally
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{
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conn1.Close();
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}
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}
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}
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}
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在相应的按钮

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<asp:Button id="wbtn_Backup" runat="server" Width="60px" Text="备 份" CssClass="Button"></asp:Button>
单击事件里调用即可：

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/**//// <summary>
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/// 备份按钮
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void wbtn_Backup_Click(object sender, System.EventArgs e)
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{
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DbOperate dbop = new DbOperate();
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dbop.DbBackup();
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}