LoggingSystem.java 文件源码

public static Logger getChatLogger() {
        if (chatLogger == null) {
            try {
                DailyRollingFileAppender fileAppender = new DailyRollingFileAppender(
                        new PatternLayout("%d{HH:mm:ss} %m%n"),
                        Config.getChatLogFile(), "'.'yyyy-MM-dd");

                chatLogger = Logger.getLogger("chat");
                chatLogger.addAppender(fileAppender);
                chatLogger.setLevel(Level.DEBUG);

//              if (Config.isDebug()) {
//                  ConsoleAppender consoleAppender = new ConsoleAppender(
//                          new PatternLayout("%d{HH:mm:ss} %m%n"));
//                  chatLogger.addAppender(consoleAppender);
//              }
            } catch (IOException e) {
                System.err.println("Could not initialize chat logging!");
                e.printStackTrace();
            }
        }

        return chatLogger;
    }