default.aspx.cs

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using System;
using System.Data;
using System.Configuration;
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;
using System.IO;

public partial class _Default : System.Web.UI.Page 
{
    SqlConnection myConn;
    SqlDataAdapter adapter;
    SqlCommand myCmd;
    DataSet ds;
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            myConn = new SqlConnection("server=a\\mr;database=master;UID=sa;PassWord=''");
            string strSql="Exec sp_helpdb";
            adapter = new SqlDataAdapter(strSql, myConn);
            ds = new DataSet();
            adapter.Fill(ds);
            this.DropDownList1.DataSource = ds.Tables[0].DefaultView;
            this.DropDownList1.DataTextField = "name";
            this.DropDownList1.DataBind();
            myConn.Dispose();
            adapter.Dispose();
            ds.Dispose();
        }
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string path = this.FileUpload1.PostedFile.FileName;//获取备份路径及数据库名称
        string dbName = this.DropDownList1.SelectedValue;
        string strSql1 = "server=a\\mr;database=" + dbName + ";UID=sa;PassWord=''";
        string strSql2 = "backup log " + dbName + " to disk='" + path + "'";
        strSql2 += "USE master DECLARE tb CURSOR LOCAL FOR SELECT 'Kill '+ CAST(Spid AS VARCHAR) FROM master.dbo.sysprocesses";
        strSql2 += " WHERE dbid=DB_ID('" + dbName + "') DECLARE @s nvarchar(1000) OPEN tb FETCH tb INTO @s";
        strSql2 += " WHILE @@FETCH_STATUS = 0 BEGIN EXEC (@s) FETCH tb INTO @s END CLOSE tb DEALLOCATE tb";
        strSql2 += "  RESTORE DATABASE " + dbName + " FROM disk='" + path + "'";
        strSql2 += "use " + dbName + "";
        myConn = new SqlConnection(strSql1);
        myCmd = new SqlCommand(strSql2, myConn);
        myConn.Open();
        try
        {
            myCmd.ExecuteNonQuery();
            Response.Write("<script>alert('还原数据成功！');location='Default.aspx'</script>");
        }
        catch (Exception ex)
        {
            Response.Write(ex.Message.ToString());
            Response.Write("<script>alert('还原数据失败！');location='Default.aspx'</script>");
        }
        finally
        {
            myConn.Close();
            myConn.Dispose();
            myCmd.Dispose();
        }
    }
 
}