LoggingConfig.java 文件源码

public LoggingConfig() {
    try {
        // Load a properties file from class path java.util.logging.config.file
        final LogManager logManager = LogManager.getLogManager();
        URL configURL = getClass().getResource("/logging.properties");
        if (configURL != null) {
            try (InputStream is = configURL.openStream()) {
                logManager.readConfiguration(is);
            }
        } else {
            // Programmatic configuration
            System.setProperty("java.util.logging.SimpleFormatter.format",
                               "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS.%1$tL %4$-7s [%3$s] %5$s %6$s%n");

            final ConsoleHandler consoleHandler = new ConsoleHandler();
            consoleHandler.setLevel(Level.FINEST);
            consoleHandler.setFormatter(new SimpleFormatter());

            final Logger app = Logger.getLogger("app");
            app.setLevel(Level.FINEST);
            app.addHandler(consoleHandler);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}