///还原资料文件夹
///经过主窗体的逻辑,可以认为,传过来的快照对象实例包含所有的需要还原的文件
///而且,快照记录的所有文件在文件夹中都一一对应
///不方便改名,这个方法其实是所有拷贝文件的方法,将第二个参数里所有内容拷贝到第三个参数的文件夹中,二/三参数在拷贝完后是平级的.
public static void RestoredFiles(List <string> fileGhost, string backupFilesPath, string restoredFilesPath, SkinListBox listbox)
{
listbox.AddToButtom("开始拷贝文件...");
WaitThreadControl wtc = new WaitThreadControl {
RecordedDatabase = false
};
Thread thread = new Thread((q) =>
{
//todo:拷贝文件的逻辑,需要考虑如果目标磁盘满了,或者其他错误导致的还原中断,如何处理.
//可以使用try块来捕获异常
//调用递归,参数为两个路径,表示为将第一个路径所代表的文件夹拷贝到第二个路径下面
//路径格式为第一个参数为快照中每一个文件夹名字完整路径,第二个参数,为目标文件夹完整路径
foreach (var item in fileGhost)
{
CopyDirectory(backupFilesPath + "\\" + item, restoredFilesPath);//todo:将等待窗体放进参数里,在每次拷贝一个文件后,改变等待窗体显示的内容,用invoke
}
((WaitThreadControl)q).RecordedDatabase = true;
listbox.Invoke(new Action <string>(n => listbox.AddToButtom(n)), "拷贝完成...OK");
});
thread.IsBackground = true;
thread.Start(wtc);//要先执行线程再谈对话框,不然会阻塞.
WaitDialog wd = new WaitDialog(wtc);
wd.StartPosition = FormStartPosition.CenterParent;
wd.chengeLoadingText("正在拷贝数据文件");
wd.ShowDialog();
}
/// <summary>
/// 备份指定的数据库文件
/// </summary>
/// <param name="databasefile">备份文件要存放到的路径</param>
/// <returns></returns>
public static bool BackUpDataBase(string databasefile, UserInfo userinfo, SkinListBox listbox, bool isFullBackup)
{
///调用时,由调用函数先确认是否存在完整备份的文件,有则先进行处理,确保执行备份时,文件已被删除或改名.
///这里的逻辑,不再校验是否有备份文件.
///只做单一的完整备份或差异备份
///RESTORE DATABASE [dzcjda_sjz] FROM DISK = N'H:\xuz\dif_20170516.bak' WITH FILE = 1, MOVE N'dzcjda_sjz' TO N'F:\sql2008shili\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\dzcjda_sjz.mdf', MOVE N'dzcjda_sjz_log' TO N'F:\sql2008shili\MSSQL10_50.SQLEXPRESS\MSSQL\DATA\dzcjda_sjz_1.ldf', NOUNLOAD, STATS = 10
///if (File.Exists(databasefile))
///{
/// return false;
///}
WaitThreadControl wtc = new WaitThreadControl {
RecordedDatabase = false
};
Thread thread = new Thread((q) =>
{
//还原的数据库MyDataBase
string sql;
if (isFullBackup)
{
//sql = "BACKUP DATABASE @baseName TO DISK = @backFilePath ";
sql = "BACKUP DATABASE @baseName TO DISK = @backFilePath WITH NOFORMAT, INIT, NAME = N'dzcjda_sjz-完整 数据库 备份', SKIP, NOREWIND, NOUNLOAD, STATS = 10";
}
else
{
sql = "BACKUP DATABASE @baseName TO DISK = @backFilePath WITH DIFFERENTIAL , NOFORMAT, INIT, NAME = N'dzcjda_sjz-差异 数据库 备份', SKIP, NOREWIND, NOUNLOAD, STATS = 10";
}
//string sql1 = @"BACKUP DATABASE [MZLWebApp] TO DISK = '" + databasefile + ".bak' WITH NOFORMAT, NOINIT, NAME = '"+ DateTime.Now.ToString("yyyyMMdd") +"', SKIP, NOREWIND, NOUNLOAD, STATS = 10";
SqlParameter[] spms = new SqlParameter[] {
new SqlParameter("@baseName", userinfo.BaseName),
new SqlParameter("@backFilePath", databasefile)
};
try
{
SQLHelper.ExecutNonQuery(sql, CommandType.Text, spms);
}
catch (Exception)
{
listbox.Invoke(new Action <string>(n => listbox.AddToButtom(n)), "备份失败...False");
((WaitThreadControl)q).RecordedDatabase = true;
return;
}
listbox.Invoke(new Action <string>(n => listbox.AddToButtom(n)), "备份成功...OK");
((WaitThreadControl)q).RecordedDatabase = true;
});
thread.IsBackground = true;
WaitDialog wd = new WaitDialog(wtc);
wd.chengeLoadingText("正在备份数据库");
wd.StartPosition = FormStartPosition.CenterParent;
thread.Start(wtc);//要先执行线程再谈对话框,不然会阻塞.
wd.ShowDialog();
return(true);
}
//以下是一键还原数据库(通过最后一个参数指定是完整还原还是差异还原,完整还原,第一个参数只要一个文件名,差异还原则要两个)------------------------------------
/// <summary>
/// 一键还原数据库
/// </summary>
/// <param name="backfile">一个或两个文件,完全备份和差异备份</param>
/// <param name="userinfo"></param>
/// <param name="listbox"></param>
/// <param name="type">是完整还原还是差异还原</param>
/// <returns></returns>
public static bool FullRestoreDatabase(string[] backfile, UserInfo userinfo, SkinListBox listbox, BacOrResType type)
{
///杀死原来所有的数据库连接进程
ArrayList list = new ArrayList();
string sql = "SELECT spid FROM sysprocesses ,sysdatabases WHERE sysprocesses.dbid=sysdatabases.dbid AND sysdatabases.Name=@baseName";
SqlParameter spm = new SqlParameter("@baseName", userinfo.BaseName);
using (SqlDataReader reader = SQLHelper.ExcuteDataReader(sql, CommandType.Text, spm))
{
if (reader.HasRows)
{
while (reader.Read())
{
list.Add(reader.GetInt16(0));
}
}
}
for (int i = 0; i < list.Count; i++)
{
sql = string.Format("KILL {0}", list[i].ToString());
SQLHelper.ExecutNonQuery(sql, CommandType.Text, null);
//MessageBox.Show("系统已经清除的数据库线程： " + list[i].ToString() + "\r\n正在还原数据库！");
listbox.AddToButtom("清除数据库线程： " + list[i].ToString());
}
listbox.AddToButtom("所有线程清理完成...OK");
//listbox.AddToButtom("开始执行完整还原操作...");
listbox.AddToButtom(type == BacOrResType.Full ? "开始完整还原数据库..." : "开始差异还原数据库...");
WaitThreadControl wtc = new WaitThreadControl {
RecordedDatabase = false
};
#region 通过斜线旋转执行等待
//Thread waitThread = new Thread((canStop) =>
// {
// string[] strArray = new string[] { "/", "—", "\\" };
// int i = 0;
// WaitDialog wd = new WaitDialog();
// wd.StartPosition = FormStartPosition.CenterParent;
// listbox.Invoke(new Action<WaitDialog>(wd1 =>
// {
// ((WaitDialog)wd1).ShowDialog();
// }), wd);
// while (!((WaitThreadControl)canStop).RecordedDatabase)
// {
// int b;
// Math.DivRem(i, 3, out b);
// listbox.Invoke(new Action(() =>
// {
// listbox.Items.RemoveAt(listbox.Items.Count - 1);
// listbox.AddToButtom("正在还原数据库，禁止所有操作..." + strArray[b]);
// }));
// i++;
// Thread.Sleep(300);
// }
// listbox.Invoke(new Action<string>(u =>
// {
// listbox.Items.RemoveAt(listbox.Items.Count - 1);
// listbox.AddToButtom(u);
// }), "还原数据库执行完成...OK");
// });
#endregion
Thread thread = new Thread((q) =>
{
bool hasBase = ConnectionTestInfo.CheckExistsDataBase(userinfo);
//数据库已经存在时,不需要加move关键字,但需要覆盖.
//数据库不存在时,需要加move,但不需要覆盖
string movPath = hasBase ? "" : @"MOVE @mdfFileName TO @mdfFilePath , MOVE @logFileName TO @logFilePath ,";//数据库是否存在
string defaultPath = string.Empty;
if (!hasBase)
{
#region 获取数据库默认路径代码
listbox.Invoke(new Action <string>(n => { listbox.AddToButtom(n); }), "获取系统默认路径...");//.AddToButtom("获取系统默认路径...");
sql = "select filename from master..sysfiles";
using (SqlDataReader reader = SQLHelper.ExcuteDataReader(sql, CommandType.Text))
{
if (reader.HasRows)
{
if (reader.Read())
{
defaultPath = Path.GetDirectoryName(reader.GetString(0));
}
}
}
if (string.IsNullOrEmpty(defaultPath))
{
listbox.Invoke(new Action <string>(n => { listbox.AddToButtom(n); }), "获取系统默认路径失败，需指定数据库存放路径...");
//listbox.AddToButtom("获取系统默认路径失败，需指定数据库存放路径");
//todo:弹出对话框
}
else
{
listbox.Invoke(new Action <string, string>((n, m) => { listbox.AddToButtom(n); listbox.AddToButtom(m); }), "获取默认路径成功...OK", defaultPath);
//listbox.AddToButtom("获取默认路径成功");
//listbox.Invoke(new Action<string>(n => { listbox.AddToButtom(n); }), defaultPath);
//listbox.AddToButtom(defaultPath);
}
#endregion
}
if (type == BacOrResType.Full)
{
sql = @"RESTORE DATABASE @baseName FROM DISK = @backFileName WITH FILE = 1, " + movPath + " NOUNLOAD, REPLACE, STATS = 10";//NORECOVERY,
}
else
{
sql = "RESTORE DATABASE @baseName FROM DISK = @backFileName WITH FILE = 1, " + movPath + " NORECOVERY, REPLACE, NOUNLOAD, STATS = 10";
}
SqlParameter[] spms = new SqlParameter[]
{
new SqlParameter("@baseName", userinfo.BaseName),
new SqlParameter("@backFileName", backfile[0]),
new SqlParameter("@mdfFileName", userinfo.BaseName),
new SqlParameter("@mdfFilePath", defaultPath + "\\" + userinfo.BaseName + ".mdf"),
new SqlParameter("@logFileName", userinfo.BaseName + "_log"),
new SqlParameter("@logFilePath", defaultPath + "\\" + userinfo.BaseName + ".ldf")
};
SQLHelper.ExecutNonQuery(sql, CommandType.Text, true, spms);
//listbox.Invoke(new Action<string> ( u => listbox.AddToButtom(u) ),"执行完成");
if (type == BacOrResType.Def)
{
spms[1] = new SqlParameter("@backFileName", backfile[1]);
sql = @"RESTORE DATABASE @baseName FROM DISK = @backFileName WITH FILE = 1, NOUNLOAD, STATS = 10";
SQLHelper.ExecutNonQuery(sql, CommandType.Text, true, spms);
}
((WaitThreadControl)q).RecordedDatabase = true;
listbox.Invoke(new Action <string>(n => listbox.AddToButtom(n)), "还原完成...OK");
});
thread.IsBackground = true;
thread.Start(wtc);//要先执行线程再谈对话框,不然会阻塞.
WaitDialog wd = new WaitDialog(wtc);
wd.chengeLoadingText("正在还原数据库");
wd.StartPosition = FormStartPosition.CenterParent;
wd.ShowDialog();
//waitThread.IsBackground = true;
//waitThread.Start(wtc);
return(true);
#region 原来的代码
//这里一定要是master数据库，而不能是要还原的数据库，因为这样便变成了有其它进程
//占用了数据库。
//string constr = userinfo.ConnectionString;
//string database = userinfo.BaseName;//MyDataBase;
//string path = backfile;
//string BACKUP = String.Format("RESTORE DATABASE {0} FROM DISK = '{1}'", database, path);
//SqlConnection con = new SqlConnection(constr);
//SqlCommand cmd = new SqlCommand(BACKUP, con);
//con.Open();
//try
//{
// cmd.ExecuteNonQuery();
// MessageBox.Show("还原成功,点击退出系统！");
// Application.Exit();
//}
//catch (SqlException ee)
//{
// //throw(ee);
// //MessageBox.Show("还原失败");
// MessageBox.Show(ee.ToString());
//}
//finally
//{
// con.Close();
//}
//return "成功与否字符串";
#endregion
}
