以編程方式配置LogBack DBAppender

Question

我想讓LogBack DBAppender從編程配置工作，但似乎無法使其運行。

LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory(); 
DBAppender dbAppender = new DBAppender(); 
dbAppender.setContext(lc); 
DriverManagerConnectionSource connectionSource = new DriverManagerConnectionSource(); 
connectionSource.setDriverClass("com.mysql.jdbc.Driver"); 
connectionSource.setUrl(loggingConnectionInfo.getUri()); 
connectionSource.setUser(loggingConnectionInfo.getUser()); 
connectionSource.setPassword(loggingConnectionInfo.getPassword()); 
connectionSource.setContext(lc); 
connectionSource.start(); 
dbAppender.setConnectionSource(connectionSource); 
dbAppender.start(); 

logger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME); 
logger.setLevel(Level.DEBUG); 
logger.addAppender(dbAppender); 

任何想法什麼可能是錯的？我在控制檯中看到一個日誌，但沒有任何數據庫。一直與這一戰鬥，並會感謝任何見解！

Answer 1

我相信@ebensing發現問題，它是LoggerContext。這是一個工作版本，最大的區別是logger.getLoggerContext()：

Logger logger = (Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME); 
logger.setLevel(Level.DEBUG); 

DriverManagerConnectionSource connSource = new DriverManagerConnectionSource(); 
connSource.setDataSource(ds); 
connSource.setContext(logger.getLoggerContext()); 
connSource.start(); 

DBAppender dbAppender = new DBAppender(); 
dbAppender.setConnectionSource(connSource); 
dbAppender.setContext(logger.getLoggerContext()); 
dbAppender.start(); 

logger.addAppender(dbAppender);