ASP.NET 恢復(fù)備份Sqlserver實現(xiàn)代碼

來源：懂視網(wǎng) 責編：小采時間：2020-11-27 22:43:15

ASP.NET 恢復(fù)備份Sqlserver實現(xiàn)代碼

ASP.NET 恢復(fù)備份Sqlserver實現(xiàn)代碼:最近做的一個項目因為服務(wù)器是在特殊機房上的，因為安全方面的考慮，不能給我們開發(fā)者提供FTP服務(wù)，所以每次更新版本都得自己跑一趟，而他的機房有很遠，所以我一直想能不能開發(fā)一個維護版本的系統(tǒng)呢，對數(shù)據(jù)庫和代碼進行在線更新，就不用自己跑了，于是就有

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導(dǎo)讀ASP.NET 恢復(fù)備份Sqlserver實現(xiàn)代碼:最近做的一個項目因為服務(wù)器是在特殊機房上的，因為安全方面的考慮，不能給我們開發(fā)者提供FTP服務(wù)，所以每次更新版本都得自己跑一趟，而他的機房有很遠，所以我一直想能不能開發(fā)一個維護版本的系統(tǒng)呢，對數(shù)據(jù)庫和代碼進行在線更新，就不用自己跑了，于是就有

最近做的一個項目因為服務(wù)器是在特殊機房上的，因為安全方面的考慮，不能給我們開發(fā)者提供FTP服務(wù)，所以每次更新版本都得自己跑一趟，而他的機房有很遠，所以我一直想能不能開發(fā)一個維護版本的系統(tǒng)呢，對數(shù)據(jù)庫和代碼進行在線更新，就不用自己跑了，于是就有了下面的嘗試，在線恢復(fù)和備份SQL Server：

前臺代碼：
代碼如下:


<%@ 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 數(shù) 據(jù) 庫</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">備份名稱和位置</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="備份數(shù)據(jù)庫" /> 
</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 數(shù) 據(jù) 庫</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 數(shù) 據(jù) 庫</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="還原數(shù)據(jù)庫" /> 
<asp:Button ID="Button3" runat="server" Font-Size="9pt" OnClick="Button3_Click" Text="強制還原數(shù)據(jù)庫" /> 
</td> 
</tr> 
</table> 
</div> 
</form> 
</body> 
</html> 
 
后臺： 
 代碼如下:
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，請從新輸入！');location='Default.aspx'</script>"); 
return; 
} 
SqlCommand com = new SqlCommand(SqlStr2, con); 
com.ExecuteNonQuery(); 
Response.Write("<script language=javascript>alert('備份數(shù)據(jù)成功！');'</script>"); 
} 
catch (Exception error) 
{ 
Response.Write(error.Message); 
Response.Write("<script language=javascript>alert('備份數(shù)據(jù)失敗！')</script>"); 
} 
finally 
{ 
con.Close(); 
} 
} 
protected void Button2_Click(object sender, EventArgs e) 
{ 
string path = this.FileUpload1.PostedFile.FileName; //獲得備份路徑及數(shù)據(jù)庫名稱 
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('還原數(shù)據(jù)成功！');'</script>"); 
} 
catch (Exception error) 
{ 
Response.Write(error.Message); 
Response.Write("<script language=javascript>alert('還原數(shù)據(jù)失敗！')</script>"); 
txtDbName.Text = SqlStr2; 
} 
finally 
{ 
con.Close(); 
} 
} 
/// <summary> 
/// 恢復(fù)數(shù)據(jù)庫，可選擇是否可以強制還原（即在其他人在用的時候，依然可以還原） 
/// </summary> 
/// <param name="databasename">待還原的數(shù)據(jù)庫名稱</param> 
/// <param name="databasefile">帶還原的備份文件的完全路徑</param> 
/// <param name="errormessage">恢復(fù)數(shù)據(jù)庫失敗的信息</param> 
/// <param name="forceRestore">是否強制還原（恢復(fù)），如果為TRUE，則exec killspid '數(shù)據(jù)庫名' 結(jié)束此數(shù)據(jù)庫的進程，這樣才能還原數(shù)據(jù)庫</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)//如果強制回復(fù) 
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 = "還原成功"; 
} 
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; //獲得備份路徑及數(shù)據(jù)庫名稱 
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); 
} 
} 
} 
 

效果圖：

 
經(jīng)過試驗，大體完成了我需要的功能，具體優(yōu)化后期進行中。
 
 




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ASP.NET 恢復(fù)備份Sqlserver實現(xiàn)代碼

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