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ASP.NET 恢复备份Sqlserver实现代码

来源:中文源码网    浏览:119 次    日期:2024-05-18 22:08:16
【下载文档:  ASP.NET 恢复备份Sqlserver实现代码.txt 】


ASP.NET 恢复备份Sqlserver实现代码
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" %>
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: 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(""); 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); } } }
效果图:
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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