用asp.net程序备份或还原SQLServer

主要是利用SQL Server提供的SQL语句来实现备份的。
备份：use master;backup database @name to disk=@path;
恢复：use master;restore database @name from disk=@path;
上面用的是参数化SQL语句，可以在程序执行的时候动态给参数赋值。

.aspx代码：

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DatabaseAction.aspx.cs" Inherits="DatabaseAction" %> 

            <!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>无标题页</title> 
            </head> 
            <body> 
                <form id="form1" runat="server"> 
                <div> 
                <table border="0" width="100%"> 
                <tr><td colspan="2">数据库还原和备份</td></tr> 
                <tr><td>请选择数据库</td><td> 
                    <asp:DropDownList ID="ddlDatabaseList" runat="server"> 
                    </asp:DropDownList></td></tr> 
                <tr><td> 
                    数据库文件名</td><td> 
                    <asp:TextBox ID="txtDbFileName" runat="server"></asp:TextBox></td></tr> 
                <tr><td> 
                    操作选项</td><td> 
                    <asp:RadioButton ID="rbBackup" runat="server" Checked="True" GroupName="action" Text="备份" /> 
                    <asp:RadioButton ID="rbRestore" runat="server" GroupName="action" Text="还原" /></td></tr> 
                    <tr><td> 
                    操作</td><td> 
                         <asp:Button ID="btnOK" runat="server" OnClick="btnOK_Click" Text="执行" /></td></tr> 
                </table> 
                </div> 
                </form> 
            </body> 
            </html>

            

.cs代码

using System; 
            using System.Data; 
            using System.Configuration; 
            using System.Collections; 
            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.Data.SqlClient; 

            /// <summary> 
            /// 功能说明：本例中演示在asp.net中如何备份和恢复数据库 
            /// 备份数据库主要使用数据库的备份语句。数据库备份文件放在 
            /// App_Data文件夹下。 
            /// 作者：周公 
            /// 日期：2008-08-19 
            /// 首发地址：http://blog.csdn.net/zhoufoxcn/archive/2008/08/19/2796077.aspx 
            /// </summary> 
            public partial class DatabaseAction : System.Web.UI.Page 
            { 
                protected void Page_Load(object sender, EventArgs e) 
                { 
                    if (!Page.IsPostBack) 
                    { 
                        //在DropDownList中绑定所有数据库 
                        SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa"); 
                        SqlCommand command = new SqlCommand("sp_helpdb", connection); 
                        command.CommandType = CommandType.StoredProcedure; 
                        connection.Open(); 
                        SqlDataReader reader = command.ExecuteReader(); 
                        ddlDatabaseList.DataSource = reader; 
                        ddlDatabaseList.DataTextField = "Name"; 
                        ddlDatabaseList.DataBind(); 
                        reader.Close(); 
                        connection.Close(); 
                    } 
                } 
                protected void btnOK_Click(object sender, EventArgs e) 
                { 
                    string dbFileName = txtDbFileName.Text.Trim(); 
                    SqlConnection connection = new SqlConnection("Data Source=ZHOUFOXCN;User ID=sa;Password=sa"); 
                    string dbName = ddlDatabaseList.SelectedValue; 
                    if (!dbFileName.EndsWith(".bak")) 
                    { 
                        dbFileName += ".bak"; 
                    } 
                    if (rbBackup.Checked)//备份数据库 
                    { 
                        SqlCommand command = new SqlCommand("use master;backup database @name to disk=@path;",connection); 
                        connection.Open(); 
                        string path=Server.MapPath("~\\App_Data")+"\\"+dbFileName; 
                        command.Parameters.AddWithValue("@name", dbName); 
                        command.Parameters.AddWithValue("@path", path); 
                        command.ExecuteNonQuery(); 
                        connection.Close(); 
                    } 
                    else//恢复数据库 
                    { 
                        SqlCommand command = new SqlCommand("use master;restore database @name from disk=@path;", connection); 
                        connection.Open(); 
                        string path = Server.MapPath("~\\App_Data") + "\\" + dbFileName; 
                        command.Parameters.AddWithValue("@name", dbName); 
                        command.Parameters.AddWithValue("@path", path); 
                        command.ExecuteNonQuery(); 
                        connection.Close(); 
                    } 
                } 
            }

posted @ 2012-03-13 21:21  scgw  阅读(231)  评论(0)  编辑  收藏  举报