Heim  >  Artikel  >  Datenbank  >  ASP.NET恢复备份Sql server

ASP.NET恢复备份Sql server

WBOY
WBOYOriginal
2016-06-07 17:47:05903Durchsuche

前台代码:

  C#" AutoEventWireup="true" CodeBehind="SqlDbMgmt.x.cs" Inherits="SysSourceMgmt.SqlDbMgmt" %>

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  操 作 数 据 库

  

  

  

  

  

  

  备份名称和位置

  

  

  

  (如D:beifen)

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  操 作 数 据 库

  

  

  

  

  

  操 作 数 据 库

  

  

  

  

  

  

  

  

  

  

  

   后台:

  using System;

 

  using System.Collections.Generic;

  using System.Linq;

  using System.Web;

  using System.Web.UI;

  using System.Web.UI.WebControls;

  using System.Data.SqlClient;

  using System.IO;

  using System.Data;

  using System.Diagnostics;

  namespace SysSourceMgmt

  {

  public partial class SqlDbMgmt : System.Web.UI.Page

  {

  protected void Page_Load(object sender, EventArgs e)

  {

  if (!IsPostBack)

  {

  try

  {

  string SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd=";

  string SqlStr2 = "Exec sp_helpdb";

  SqlConnection con = new SqlConnection(SqlStr1);

  con.Open();

  SqlCommand com = new SqlCommand(SqlStr2, con);

  SqlDataReader dr = com.ExecuteReader();

  this.DropDownList1.DataSource = dr;

  this.DropDownList1.DataTextField = "name";

  this.DropDownList1.DataBind();

  dr.Close();

  con.Close();

  SqlStr1 = "Server=(local);DataBase=master;Uid=sa;Pwd=";

  SqlStr2 = "Exec sp_helpdb";

  con = new SqlConnection(SqlStr1);

  con.Open();

  com = new SqlCommand(SqlStr2, con);

  dr = com.ExecuteReader();

  this.DropDownList1.DataSource = dr;

  this.DropDownList1.DataTextField = "name";

  this.DropDownList1.DataBind();

  dr.Close();

  con.Close();

  }

  catch (Exception)

  {

  }

  }

  }

  protected void Button1_Click(object sender, EventArgs e)

  {

  string dbName = string.Empty;

  if (DropDownList1.Items.Count != 0)

  {

  dbName = DropDownList1.SelectedValue.Trim();

  }

  else

  {

  dbName = txtDbName.Text.Trim();

  }

  string SqlStr1 = "Data Source=.\sqlexpress;Initial Catalog='" + dbName + "';Integrated Security=True";

  string SqlStr2 = "backup database " + dbName + " to disk='" + this.TextBox1.Text.Trim() + ".bak'";

  SqlConnection con = new SqlConnection(SqlStr1);

  con.Open();

  try

  {

  if (File.Exists(this.TextBox1.Text.Trim()))

  {

  Response.Write("");

  return;

  }

  SqlCommand com = new SqlCommand(SqlStr2, con);

  com.ExecuteNonQuery();

  Response.Write("");

  }

  catch (Exception error)

  {

  Response.Write(error.Message);

  Response.Write("");

  }

  finally

  {

  con.Close();

  }

  }

  protected void Button2_Click(object sender, EventArgs e)

  {

  string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称

  string dbName = string.Empty;

  if (DropDownList1.Items.Count != 0)

  {

  dbName = DropDownList1.SelectedValue.Trim();

  }

 else

 

  {

  dbName = txtDbName.Text.Trim();

  }

   string SqlStr1 = "Data Source=.\sqlexpress;Initial Catalog='" + dbName + "';Integrated Security=True";

  string SqlStr2 = @"use master restore database " + dbName + " from disk='" + path + "'";

  SqlConnection con = new SqlConnection(SqlStr1);

  con.Open();

  try

  {

  SqlCommand com = new SqlCommand(SqlStr2, con);

  com.ExecuteNonQuery();

  Response.Write("");

  }

  catch (Exception error)

  {

  Response.Write(error.Message);

  Response.Write("");

  txtDbName.Text = SqlStr2;

  }

  finally

  {

  con.Close();

  }

  }

  ///

  /// 恢复数据库,可选择是否可以强制还原(即在其他人在用的时候,依然可以还原)

  ///

  /// 待还原的数据库名称

  /// 带还原的备份文件的完全路径

  /// 恢复数据库失败的信息

  /// 是否强制还原(恢复),如果为TRUE,则exec killspid '数据库名' 结束此数据库的进程,这样才能还原数据库

  ///

  public bool RestoreDataBase(string databasename, string databasefile, ref string returnMessage, bool forceRestore, SqlConnection conn)

  {

  bool success = true;

  string path = databasefile;

  string dbname = databasename;

  string restoreSql = "use master;";

  if (forceRestore)//如果强制回复

  restoreSql += string.Format("use master exec killspid '{0}';", databasename);

  restoreSql += "restore database @dbname from disk = @path;";

  SqlCommand myCommand = new SqlCommand(restoreSql, conn);

  myCommand.Parameters.Add("@dbname", SqlDbType.Char);

  myCommand.Parameters["@dbname"].Value = dbname;

  myCommand.Parameters.Add("@path", SqlDbType.Char);

  myCommand.Parameters["@path"].Value = path;

  Response.Write(restoreSql);

  try

  {

  myCommand.Connection.Open();

  myCommand.ExecuteNonQuery();

  returnMessage = "还原成功";

  }

  catch (Exception ex)

  {

  returnMessage = ex.Message;

  success = false;

  }

  finally

  {

  myCommand.Connection.Close();

  }

  return success;

  }

  protected void Button3_Click(object sender, EventArgs e)

  {

  string path = this.FileUpload1.PostedFile.FileName; //获得备份路径及数据库名称

  string dbName = string.Empty;

  if (DropDownList1.Items.Count != 0)

  {

  dbName = DropDownList1.SelectedValue.Trim();

  }

  else

  {

  dbName = txtDbName.Text.Trim();

  }

  string returnMessage = string.Empty;

  string SqlStr1 = "Data Source=.\sqlexpress;Initial Catalog='" + dbName + "';Integrated Security=True";

 

  SqlConnection con = new SqlConnection(SqlStr1);

  RestoreDataBase(txtDbName.Text, path, ref returnMessage, true,con);

  Response.Write(returnMessage);

  }

  }

  }

Stellungnahme:
Der Inhalt dieses Artikels wird freiwillig von Internetnutzern beigesteuert und das Urheberrecht liegt beim ursprünglichen Autor. Diese Website übernimmt keine entsprechende rechtliche Verantwortung. Wenn Sie Inhalte finden, bei denen der Verdacht eines Plagiats oder einer Rechtsverletzung besteht, wenden Sie sich bitte an admin@php.cn