Java FileHandler.setFormatter方法代码示例

import java.util.logging.FileHandler; //导入方法依赖的package包/类
public Server(String fileName, boolean restart) {
	super();
	parseServerFile(fileName);
	seatAssignments = new ArrayList<>(nSeats);
	for (int i = 0; i < nSeats; i++)
		seatAssignments.add("");

	log.getParent().removeHandler(log.getParent().getHandlers()[0]);
	
	try {
		// check if logs dir exists
		File logDir = new File("./logs/"); 
		if( !(logDir.exists()) )
			logDir.mkdir();
			
		FileHandler fh = new FileHandler("logs/server_log_" + serverID + ".log");
		fh.setFormatter(new SimpleFormatter());
		fh.setLevel(logLevel);
		log.addHandler(fh);
		
		ConsoleHandler ch = new ConsoleHandler();
		ch.setLevel(logLevel);
		log.addHandler(ch);
		log.setLevel(logLevel);
		
		log.info("Server initializing...");
		log.info("ServerID = " + serverID);
		log.info("nServers = " + nServers);
		log.info("nSeats = " + nSeats);
		log.info("my tcp port = " + tcpPort);
		for (int i = 0; i < nServers; i++)
			log.info("Server " + i + ": " + servers.get(i) + ":" + ports.get(i));
		log.info("Server init complete");
		log.info("--------------------------------");
		mutex = new LamportMutex(servers, ports, this, restart);
		mutex.init();
	} catch (SecurityException | IOException e) {
		e.printStackTrace();
	}
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
private AptaLogger() throws IOException{
  
    //instance the file handler
    filepath = Paths.get(Configuration.getParameters().getString("Experiment.projectPath"), "log_" + formatter.format(new Date()) + ".txt").toString();
    fileHandler = new FileHandler(filepath,true);
    fileHandler.setLevel(Level.ALL); // We want everything logged on file
    
	//instance the logger
    logger = Logger.getLogger(AptaLogger.class.getName());  
    logger.setUseParentHandlers(false);
    logger.setLevel(Level.ALL);
    
    //instance formatter, set formatting, and handler
    formatterTxt = new AptaLoggerFormat();
    fileHandler.setFormatter(formatterTxt);
    
    logger.addHandler(fileHandler);

}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
private LogService(Logger logger) {
	super(logger);

	// setup a log file if the execution mode can access the filesystem (e.g. not for RA)
	// we want our logfile to look the same regardless of any user settings, so ignore
	// a possible user logging property config file
	if (RapidMiner.getExecutionMode().canAccessFilesystem()) {
		try {
			FileHandler logFileHandler = new FileHandler(FileSystemService.getLogFile().getAbsolutePath(), false);
			logFileHandler.setLevel(Level.ALL);
			logFileHandler.setFormatter(new SimpleFormatter());
			LogService.getRoot().addHandler(logFileHandler);
		} catch (IOException e) {
			LogService.getRoot().log(Level.WARNING, "com.rapidminer.logservice.logfile.failed_to_init", e.getMessage());
		}
	}
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
/**
 * Initializes all globals to a default state. Used so that in the case of a
 * memory leak, the previous values are not accidentally used.
 */
public static void initGlobals() {
    System.setProperty("java.util.logging.SimpleFormatter.format", 
        "(%1$tc) [%4$s] ~%2$s~%nMessage: \"%5$s\"%n");
    try {
        handler = new FileHandler("log.txt");
        handler.setLevel(Level.INFO);
        handler.setFormatter(new SimpleFormatter());
        
        // Ensure we only log to log file.
        LOGGER.setUseParentHandlers(false);
        LOGGER.addHandler(handler);
        
        LOGGER.setLevel(Level.INFO);
    } catch (IOException | SecurityException ex) {
        throw new RuntimeException("Failed to initialized logger... " + ex.getMessage());
    }
    PROJECT_FOLDER = null;
    URI_PREFIX = null;
    CURRENT_FILE = null;
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
protected void configureLogger() throws SecurityException, IOException {
  if (logger == null) {
    logger = Logger.getLogger(LOGGER_NAME);
  }
  logger.setUseParentHandlers(false);
  logFileHandler = new FileHandler(logFilePath);
  logFileHandler.setFormatter(new SimpleFormatter());
  Level logLevel = Level.INFO;
  try {
    logLevel = Level.parse(logLevelString);
  } catch (IllegalArgumentException e) {
    logInfo("Unrecognized log level :" + logLevelString + " defaulting to :" + logLevel);
  }
  logFileHandler.setLevel(logLevel);
  logger.addHandler(logFileHandler);
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
/**
 * Creates a new logger
 */
private Logger init(final Level level, final String file) {
    final LogSettings logSettings = settingsService.getLogSettings();
    final Logger logger = Logger.getAnonymousLogger();
    logger.setLevel(level);
    logger.setUseParentHandlers(false);
    try {
        final FileUnits units = logSettings.getMaxLengthPerFileUnits();
        final FileHandler fileHandler = new FileHandler(file, units.calculate(logSettings.getMaxLengthPerFile()), logSettings.getMaxFilesPerLog(), true);
        fileHandler.setFormatter(logFormatter);
        fileHandler.setEncoding(settingsService.getLocalSettings().getCharset());
        logger.addHandler(fileHandler);
    } catch (final Exception e) {
        final ConsoleHandler consoleHandler = new ConsoleHandler();
        consoleHandler.setFormatter(logFormatter);
        try {
            consoleHandler.setEncoding(settingsService.getLocalSettings().getCharset());
        } catch (final Exception e1) {
            // Just ignore
        }
        logger.addHandler(consoleHandler);
        logger.log(Level.WARNING, "Unable to create logger for file " + file);
    }
    return logger;
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
private void setupLogging() {
    log.setUseParentHandlers(false);

    LogFormatter formatter = new LogFormatter();

    ConsoleHandler ch = new ConsoleHandler();
    ch.setFormatter(formatter);
    if (isDebugging()) {
        log.setLevel(Level.FINEST);
        ch.setLevel(Level.FINEST);
    } else {
        log.setLevel(Level.INFO);
        ch.setLevel(Level.INFO);
    }
    log.addHandler(ch);

    try {
        FileHandler fh = new FileHandler("server.log");
        fh.setFormatter(formatter);
        if (isDebugging()) {
            fh.setLevel(Level.FINEST);
        } else {
            ch.setLevel(Level.INFO);
        }
        log.addHandler(fh);
    } catch (IOException ex) {
        log.log(Level.SEVERE, "Error while adding FileHandler to logger. Logs will not be output to a file.", ex);
    }

}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
public static void setupLogging(boolean logToConsole, String logFile) throws Exception {
   // Setup the logging
   System.setProperty(
            "java.util.logging.SimpleFormatter.format",
            "%1$tY-%1$tm-%1$td %1$tH:%1$tM:%1$tS: %4$s: %5$s%n%6$s%n");
   LogManager.getLogManager().reset();
   Logger rootLogger = Logger.getLogger("");
   if(logFile != null) {
      FileHandler logHandler = new FileHandler(logFile, 8*1024*1024, 2, true);
      logHandler.setFormatter(new SimpleFormatter()); 
      logHandler.setLevel(Level.FINEST); 
      rootLogger.addHandler(logHandler);
   }
   
   if(logToConsole) {
      ConsoleHandler consoleHandler = new ConsoleHandler();
      consoleHandler.setFormatter(new SimpleFormatter());
      consoleHandler.setLevel(Level.INFO);
      rootLogger.addHandler(consoleHandler);
   }
    
   rootLogger.setLevel(Level.INFO);
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
public static void main(String[] args) throws IOException {

        /* Ensure directory has been created */
        new File("logs").mkdir();

        /* Get the date to be used in the filename */
        DateFormat df = new SimpleDateFormat("yyyyMMddhhmmss");
        Date now = new Date();
        String date = df.format(now);

        /* Set up the filename in the logs directory */
        String logFileName = "logs/testlog-" + date + ".txt";

        /* Set up logger */
        FileHandler myFileHandler = new FileHandler(logFileName);
        myFileHandler.setFormatter(new SimpleFormatter());
        Logger ocajLogger = Logger.getLogger("OCAJ Logger");
        ocajLogger.setLevel(Level.ALL);
        ocajLogger.addHandler(myFileHandler);

        /* Log Message */
        ocajLogger.info("\nThis is a logged information message.");

        /* Close the file */
        myFileHandler.close();
    }
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
private LogService(Logger logger) {
	super(logger);
	
	// setup a log file if the execution mode can access the filesystem (e.g. not for RA)
	// we want our logfile to look the same regardless of any user settings, so ignore 
	// a possible user logging property config file
	if (RapidMiner.getExecutionMode().canAccessFilesystem()) {
		try {
			FileHandler logFileHandler = new FileHandler(FileSystemService.getLogFile().getAbsolutePath(), false);
			logFileHandler.setLevel(Level.ALL);
			logFileHandler.setFormatter(new SimpleFormatter());
			LogService.getRoot().addHandler(logFileHandler);
		} catch (IOException e) {
			LogService.getRoot().log(Level.WARNING, "com.rapidminer.logservice.logfile.failed_to_init", e.getMessage());
		}
	}
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
public static void logToFile(Logger logger, String name, Level level) {
    try {
        File aux = new File(".");
        String parent = aux.getCanonicalPath();
        File f = new File(parent + File.separator + "log");
        if (!f.isDirectory()) {
            boolean made = f.mkdir();
            if (!made) {
                logger.warning("Impossible to create log directory");
            }
        }
        String path = parent + File.separator + "log" + File.separator
                + name + "%u.log";
        FileHandler fh = new FileHandler(path);
        fh.setFormatter(new SimpleFormatter());
        fh.setEncoding("UTF-8");
        logger.addHandler(fh);
        logger.setLevel(level);
    } catch (IOException e) {
        logger.warning("Error configuring the log file.");
        e.printStackTrace();
    }
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
/**
 * 初始化日志记录
 */
private void initLogs() {
    try {
        File file = new File(System.getProperty("user.dir") + "/logs");
        if (!file.exists()) {
            file.mkdirs();
        }
        FileHandler fileHandler = new FileHandler(file.getPath() + "/log.log");
        fileHandler.setLevel(Level.ALL);
        fileHandler.setFormatter(new SimpleFormatter());
        LOGGER.addHandler(fileHandler);
    } catch (Exception ex) {
        LOGGER.log(Level.SEVERE, null, ex);
    }
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
@PostConstruct
public void init() {
  try {
    File log = new File(logFile);
    File parentDir = log.getParentFile();
    if (!parentDir.exists()) {
      parentDir.mkdirs();
    }

    FileHandler fh = new FileHandler(logFile);
    logger.addHandler(fh);
    SimpleFormatter formatter = new SimpleFormatter();
    fh.setFormatter(formatter);
  } catch (Exception e) {
    throw new WebApplicationException(e, Response.Status.INTERNAL_SERVER_ERROR);
  }
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
/**
 * Helper that configures java.util.logging to sanely log messages at FINE level without additional
 * formatting.
 */
public JavaLogger appendToFile(String logfile) {
  logger.setLevel(java.util.logging.Level.FINE);
  try {
    FileHandler handler = new FileHandler(logfile, true);
    handler.setFormatter(new SimpleFormatter() {
      @Override
      public String format(LogRecord record) {
        return String.format("%s%n", record.getMessage()); // NOPMD
      }
    });
    logger.addHandler(handler);
  } catch (IOException e) {
    throw new IllegalStateException("Could not add file handler.", e);
  }
  return this;
}
 

import java.util.logging.FileHandler; //导入方法依赖的package包/类
private static void initLogger() {
	if (Files.notExists(Paths.get("logs\\"))) {
		new File("logs\\").mkdir();
	}

	SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd_HH-mm-ss_SSS");

	try {
		fh = new FileHandler("logs\\BTB-Logger_" + sdf.format(new Date()) + ".log", false);
	} catch (SecurityException | IOException e) {
		e.printStackTrace();
	}
	Logger l = Logger.getLogger("");
	fh.setFormatter(new SimpleFormatter());
	l.addHandler(fh);
	l.setLevel(Level.CONFIG);

	logger.log(Level.INFO, "Logger initialized");
}