public static bool restoreDB(string databaseName)
{//还原数据库
bool retuValue = true;
string resultTxt = DateTime.Now.ToString() + "：<br />还原数据库成功，<br />还原的数据库为：" + databaseName;
OleDbConnection strConn = createcon();
string tempPath = strConn.ConnectionString.Substring(strConn.ConnectionString.IndexOf("Data Source=") + 12, strConn.ConnectionString.LastIndexOf("\\") - strConn.ConnectionString.IndexOf("Data Source=") - 12);
string dbName = strConn.ConnectionString.Substring(strConn.ConnectionString.LastIndexOf("\\"));
if (System.IO.File.Exists(tempPath + "\\" + databaseName))
{
try
{
System.IO.File.Copy(tempPath + "\\" + databaseName, tempPath + "\\" + dbName, true);
}
catch (Exception exp)
{
resultTxt = DateTime.Now.ToString() + "；<br />还原数据库时出错，<br />原因：" + exp.Message.ToString();
retuValue = false;
}
}
else
{
resultTxt = DateTime.Now.ToString() + "；<br />还原数据库时出错，原因，<br />相应的数据库没有找到,本错误信息来自页面： App_Code/DB.cs";
retuValue = false;
}
systemRecord.insertOneRecord("数据库被还原。");
FileOper.writeOneFile("App_Data\\", "restoreDB.txt", resultTxt);
return(retuValue);
}
public static bool delBackupDB(string databaseName)
{//删除备份数据库
bool retuValue = true;
string resultTxt = DateTime.Now.ToString() + "：<br />删除数据库成功，<br />被删除的数据库为：" + databaseName;
OleDbConnection strConn = createcon();
string tempPath = strConn.ConnectionString.Substring(strConn.ConnectionString.IndexOf("Data Source=") + 12, strConn.ConnectionString.LastIndexOf("\\") - strConn.ConnectionString.IndexOf("Data Source=") - 12);
if (System.IO.File.Exists(tempPath + "\\" + databaseName))
{
try
{
System.IO.File.Delete(tempPath + "\\" + databaseName);
}
catch (Exception exp)
{
resultTxt = DateTime.Now.ToString() + "<br />删除数据库时出错，原因：<br />" + exp.ToString();
retuValue = false;
}
}
else
{
resultTxt = DateTime.Now.ToString() + "：<br />删除数据库时出错，原因:<br />相应的数据库没有找到!";
retuValue = false;
}
systemRecord.insertOneRecord("备份数据库被删除。");
FileOper.writeOneFile("App_Data\\", "delBackupDB.txt", resultTxt);
return(retuValue);
}
public static bool backupDB(string backupName)
{//备份数据库
bool retuValue = true;
string resultTxt = DateTime.Now.ToString() + "：<br />备份数据库成功，<br />备份的数据库为：" + backupName;
OleDbConnection strConn = createcon();
string tempPath = strConn.ConnectionString.Substring(strConn.ConnectionString.IndexOf("Data Source=") + 12, strConn.ConnectionString.LastIndexOf("\\") - strConn.ConnectionString.IndexOf("Data Source=") - 12);
string dbName = strConn.ConnectionString.Substring(strConn.ConnectionString.LastIndexOf("\\"));
try
{
System.IO.File.Copy(tempPath + "\\" + dbName, tempPath + "\\" + backupName, true);
}
catch (Exception exp)
{
resultTxt = DateTime.Now.ToString() + "；<br />备份数据库时出错，<br />原因：" + exp.Message.ToString();
retuValue = false;
}
systemRecord.insertOneRecord("数据库被备份。");
FileOper.writeOneFile("App_Data\\", "backupDB.txt", resultTxt);
return(retuValue);
}
public static bool compactDB()
{//压缩数据库
bool retuValue = true;
string resultTxt = DateTime.Now.ToString() + "：<br />压缩数据库失败,<br />请确保没有其它用户连接数据库!";
OleDbConnection strConn = createcon();
object[] oParams;
object objJRO = Activator.CreateInstance(Type.GetTypeFromProgID("JRO.JetEngine"));
string tempDb = "CompactDatabase-temp-" + DateTime.Now.ToShortDateString() + ".mdb";
string tempPath = strConn.ConnectionString.Substring(strConn.ConnectionString.IndexOf("Data Source=") + 12, strConn.ConnectionString.LastIndexOf("\\") - strConn.ConnectionString.IndexOf("Data Source=") - 12);
string dbName = strConn.ConnectionString.Substring(strConn.ConnectionString.LastIndexOf("\\"));
oParams = new object[] { strConn.ConnectionString, strConn.ConnectionString.Substring(0, strConn.ConnectionString.LastIndexOf('\\')) + "\\" + tempDb + ";Jet OLEDB:Engine Type=5" };
try
{
objJRO.GetType().InvokeMember("CompactDatabase", System.Reflection.BindingFlags.InvokeMethod, null, objJRO, oParams);
if (System.IO.File.Exists(tempPath + "\\" + tempDb))
{
System.IO.File.Copy(tempPath + "\\" + tempDb, tempPath + "\\" + dbName, true);
}
}
catch (Exception exp)
{
resultTxt = DateTime.Now.ToString() + "：<br />压缩数据库时出错，<br />原因：" + exp.Message.ToString();
retuValue = false;
}
System.Runtime.InteropServices.Marshal.ReleaseComObject(objJRO);
objJRO = null;
if (System.IO.File.Exists(tempPath + "\\" + tempDb))
{
System.IO.File.Delete(tempPath + "\\" + tempDb);
}
if (retuValue)
{
resultTxt = DateTime.Now.ToString() + "：<br />压缩数据库成功！<br />被压缩的为系统数据库.";
}
systemRecord.insertOneRecord("数据库被压缩。");
FileOper.writeOneFile("App_Data\\", "compactDB.txt", resultTxt);
return(retuValue);
}