private IDataBase CreateForWeb()
{
String key = ConnName + "_DB";
IDataBase d;
if (HttpContext.Current.Items[key] != null && HttpContext.Current.Items[key] is IDataBase)
{
d = HttpContext.Current.Items[key] as IDataBase;
}
else
{
if (DALType == typeof(Access))
{
d = new Access(ConnStr);
}
else if (DALType == typeof(SqlServer))
{
d = new SqlServer(ConnStr);
}
else if (DALType == typeof(MySql))
{
d = new MySql(ConnStr);
}
else if (DALType == typeof(SQLite))
{
d = new SQLite(ConnStr);
}
else
{
d = DALType.Assembly.CreateInstance(DALType.FullName, false, BindingFlags.Default, null, new Object[] { ConnStr }, null, null) as IDataBase;
}
if (DataBase.Debug)
{
DataBase.WriteLog("创建DB（Web）：{0}", d.ID);
}
HttpContext.Current.Items.Add(key, d);
}
//检查是否SqlServer2005
//_DB = CheckSql2005(_DB);
if (!IsSql2005.ContainsKey(ConnName))
{
lock (IsSql2005)
{
if (!IsSql2005.ContainsKey(ConnName))
{
IsSql2005.Add(ConnName, CheckSql2005(d));
}
}
}
if (IsSql2005.ContainsKey(ConnName) && IsSql2005[ConnName])
{
_DALType = typeof(SqlServer2005);
d.Dispose();
d = new SqlServer2005(ConnStr);
}
d.SqlLog = EnableSqlLog;
return(d);
}
private IDataBase CreateForNotWeb()
{
if (_DBs == null)
{
_DBs = new Dictionary <String, IDataBase>();
}
if (_DBs.ContainsKey(ConnName))
{
return(_DBs[ConnName]);
}
lock (_DBs)
{
if (_DBs.ContainsKey(ConnName))
{
return(_DBs[ConnName]);
}
// 创建对象，先取得程序集，再创建实例，是为了防止在本程序集创建外部DAL类的实例而出错
IDataBase _DB;
if (DALType == typeof(Access))
{
_DB = new Access(ConnStr);
}
else if (DALType == typeof(SqlServer))
{
_DB = new SqlServer(ConnStr);
}
else if (DALType == typeof(SqlServer2005))
{
_DB = new SqlServer2005(ConnStr);
}
else if (DALType == typeof(MySql))
{
_DB = new MySql(ConnStr);
}
else if (DALType == typeof(SQLite))
{
_DB = new SQLite(ConnStr);
}
else
{
_DB = DALType.Assembly.CreateInstance(DALType.FullName, false, BindingFlags.Default, null, new Object[] { ConnStr }, null, null) as IDataBase;
}
//检查是否SqlServer2005
//_DB = CheckSql2005(_DB);
if (!IsSql2005.ContainsKey(ConnName))
{
lock (IsSql2005)
{
if (!IsSql2005.ContainsKey(ConnName))
{
IsSql2005.Add(ConnName, CheckSql2005(_DB));
}
}
}
if (IsSql2005.ContainsKey(ConnName) && IsSql2005[ConnName])
{
_DALType = typeof(SqlServer2005);
_DB.Dispose();
_DB = new SqlServer2005(ConnStr);
}
_DB.SqlLog = EnableSqlLog;
_DBs.Add(ConnName, _DB);
if (DataBase.Debug)
{
DataBase.WriteLog("创建DB（NotWeb）：{0}", _DB.ID);
}
return(_DB);
}
}