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ASP.NET 恢复备份Sqlserver实现代码

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最近做的一个项目因为服务器是在特殊机房上的,因为安全方面的考虑,不能给我们开发者提供FTP服务,所以每次更新版本都得自己跑一趟,而他的机房有很远,所以我一直想能不能开发一个维护版本的系统呢,对数据库和代码进行在线更新,就不用自己跑了,于是就有了下面的尝试,在线恢复和备份SQL Server:  前台代码:  。

复制代码代码如下

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="SqlDbMgmt.aspx.cs" Inherits="SysSourceMgmt.SqlDbMgmt" %>  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">  <html xmlns="http://www.w3.org/1999/xhtml">  <head runat="server">  <title></title>  </head>  <body>  <form id="form1" runat="server">  <div>  <table>  <tr>  <td style="width: 100px">  <span style="font-size: 9pt">操 作 数 据 库</span>  </td>  <td>  <asp:DropDownList ID="DropDownList1" runat="server" Font-Size="9pt" Width="124px">  </asp:DropDownList>  <asp:TextBox ID="txtDbName" runat="server"></asp:TextBox>  </td>  <td style="width: 100px">  </td>  </tr>  <tr>  <td style="width: 100px">  <span style="font-size: 9pt">备份名称和位置</span>  </td>  <td style="width: 100px">  <asp:TextBox ID="TextBox1" runat="server" Font-Size="9pt" Width="117px"></asp:TextBox>  </td>  <td style="width: 100px">  <span style="font-size: 9pt; color: #ff3300">(如D:\beifen)</span>  </td>  </tr>  <tr>  <td colspan="3">  <asp:Button ID="Button1" runat="server" Font-Size="9pt" OnClick="Button1_Click" Text="备份数据库" />  </td>  </tr>  </table>  </div>  <div style="width: 100%; height: 100px">  <table>  <tr>  <td style="width: 100px; height: 21px">  <span style="font-size: 9pt">操 作 数 据 库</span>  </td>  <td>  <asp:DropDownList ID="DropDownList2" runat="server" Font-Size="9pt" Width="124px">  </asp:DropDownList>  </td>  <td style="width: 100px; height: 21px">  </td>  </tr>  <tr>  <td style="width: 100px">  <span style="font-size: 9pt">操 作 数 据 库</span>  </td>  <td style="width: 100px">  <asp:FileUpload ID="FileUpload1" runat="server" Font-Size="9pt" Width="190px" />  </td>  <td style="width: 100px">  </td>  </tr>  <tr>  <td colspan="3">  <asp:Button ID="Button2" runat="server" Font-Size="9pt" OnClick="Button2_Click" Text="还原数据库" />  <asp:Button ID="Button3" runat="server" Font-Size="9pt" OnClick="Button3_Click" Text="强制还原数据库" />  </td>  </tr>  </table>  </div>  </form>  </body>  </html>  。

后台:  。

复制代码代码如下

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("<script language=javascript>alert('此文件已存在,请从新输入!');location='Default.aspx'</script>");  return;  }  SqlCommand com = new SqlCommand(SqlStr2, con);  com.ExecuteNonQuery();  Response.Write("<script language=javascript>alert('备份数据成功!');'</script>");  }  catch (Exception error)  {  Response.Write(error.Message);  Response.Write("<script language=javascript>alert('备份数据失败!')</script>");  }  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("<script language=javascript>alert('还原数据成功!');'</script>");  }  catch (Exception error)  {  Response.Write(error.Message);  Response.Write("<script language=javascript>alert('还原数据失败!')</script>");  txtDbName.Text = SqlStr2;  }  finally  {  con.Close();  }  }  /// <summary>  /// 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)  /// </summary>  /// <param name="databasename">待还原的数据库名称</param>  /// <param name="databasefile">带还原的备份文件的完全路径</param>  /// <param name="errormessage">恢复数据库失败的信息</param>  /// <param name="forceRestore">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</param>  /// <returns></returns>  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);  }  }  }  。

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效果图:

ASP.NET 恢复备份Sqlserver实现代码

  。

经过试验,大体完成了我需要的功能,具体优化后期进行中.

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