1
我登錄我的應用程序的活動,以小型文件數據庫(源碼)
日誌表只有3個字段:訂單,消息和時間戳的ID。
日誌條目顯示不那麼頻繁這樣我可以插入日誌記錄的正是時候。但是,我想在單獨的線程中執行查詢,我該怎麼做?我的意思是如何不「反應過度」?我只是不清楚纖維和線是什麼。這裏是我負責DB日誌記錄的班級:方式背景在C#中進行小sql查詢?
internal class LogEntryManager
{
private SQLiteConnection _sqlite;
public LogEntryManager()
{
if (!File.Exists(Environment.CurrentDirectory + @"\logs.db"))
{
SQLiteConnection.CreateFile("logs.db");
_sqlite = new SQLiteConnection("Data Source=" + Environment.CurrentDirectory + @"\logs.db");
_sqlite.Open();
SQLiteCommand command = new SQLiteCommand("CREATE TABLE logs (Id INTEGER AUTOINCREMENT PRIMARY KEY NOT NULL, OrderId INTEGER NOT NULL, Message TEXT, Timestamp DATETIME DEFAULT CURRENT_TIMESTAMP)", _sqlite);
command.ExecuteNonQuery();
_sqlite.Close();
}
else
_sqlite = new SQLiteConnection("Data Source=logs.db");
}
public void WriteLogEntry(int order, string message)
{
_sqlite.Open(); //Initiate connection to the db
SQLiteCommand cmd = _sqlite.CreateCommand();
cmd.CommandText = String.Format("INSERT INTO logs (OrderId, Message) VALUES ({0}, {1});", order, message);
cmd.ExecuteNonQuery();
_sqlite.Close();
}
}
謝謝你們!