本文整理了Java中java.util.logging.LogManager.getLogger()方法的一些代码示例，展示了LogManager.getLogger()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。LogManager.getLogger()方法的具体详情如下：
包路径：java.util.logging.LogManager
类名称：LogManager
方法名：getLogger

LogManager.getLogger介绍

[英]Get the logger with the given name.
[中]获取具有给定名称的记录器。

代码示例

代码示例来源：origin: stackoverflow.com

package com.example;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class Log4j2Tester {
  private static final Logger LOG = LogManager.getLogger(Log4j2Tester.class);

  public static void main(String[] args) {
    LOG.error("testing ERROR level");

//if you change the level of root logger to 'trace'
//then you'll also see something like
//    13:27:50.244 [main] TRACE com.example.Log4j2Tester - exiting application
    LOG.trace("exiting application");
  }
}

代码示例来源：origin: ch.qos.logback/logback-classic

public void resetJULLevels() {
  LogManager lm = LogManager.getLogManager();
  Enumeration<String> e = lm.getLoggerNames();
  while (e.hasMoreElements()) {
    String loggerName = e.nextElement();
    java.util.logging.Logger julLogger = lm.getLogger(loggerName);
    if (JULHelper.isRegularNonRootLogger(julLogger) && julLogger.getLevel() != null) {
      addInfo("Setting level of jul logger [" + loggerName + "] to null");
      julLogger.setLevel(null);
    }
  }
}

代码示例来源：origin: neo4j/neo4j

private static java.util.logging.Logger rootJULLogger()
{
  return LogManager.getLogManager().getLogger( "" );
}

代码示例来源：origin: syncany/syncany

public static void setGlobalLogLevel(Level targetLogLevel) {
  for (Enumeration<String> loggerNames = LogManager.getLogManager().getLoggerNames(); loggerNames.hasMoreElements(); ) {
    String loggerName = loggerNames.nextElement();
    Logger logger = LogManager.getLogManager().getLogger(loggerName);
    
    if (logger != null) {
      logger.setLevel(targetLogLevel);
    }
  }    
  
  for (Handler handler : Logger.getLogger("").getHandlers()) {
    handler.setLevel(targetLogLevel);
  }
  
  Logger.getLogger("").setLevel(targetLogLevel);		
  
  // Make sure the unwanted loggers stay quiet
  disableUnwantedLoggers();
}

代码示例来源：origin: stackoverflow.com

protected Log log = LogManager.getLogger(getClass());

代码示例来源：origin: jersey/jersey

/**
 * Retrieves a list of root loggers.
 *
 * @return list of root loggers.
 */
private Set<Logger> getRootLoggers() {
  final LogManager logManager = LogManager.getLogManager();
  final Enumeration<String> loggerNames = logManager.getLoggerNames();
  final Set<Logger> rootLoggers = new HashSet<>();
  while (loggerNames.hasMoreElements()) {
    Logger logger = logManager.getLogger(loggerNames.nextElement());
    if (logger != null) {
      while (logger.getParent() != null) {
        logger = logger.getParent();
      }
      rootLoggers.add(logger);
    }
  }
  return rootLoggers;
}

代码示例来源：origin: org.slf4j/jul-to-slf4j

private static java.util.logging.Logger getRootLogger() {
  return LogManager.getLogManager().getLogger("");
}

代码示例来源：origin: robovm/robovm

/**
 * Reset configuration.
 *
 * <p>All handlers are closed and removed from any named loggers. All loggers'
 * level is set to null, except the root logger's level is set to
 * {@code Level.INFO}.
 */
public synchronized void reset() {
  checkAccess();
  props = new Properties();
  Enumeration<String> names = getLoggerNames();
  while (names.hasMoreElements()) {
    String name = names.nextElement();
    Logger logger = getLogger(name);
    if (logger != null) {
      logger.reset();
    }
  }
  Logger root = loggers.get("");
  if (root != null) {
    root.setLevel(Level.INFO);
  }
}

代码示例来源：origin: org.springframework.boot/spring-boot

private boolean isJulUsingASingleConsoleHandlerAtMost() {
  Logger rootLogger = LogManager.getLogManager().getLogger("");
  Handler[] handlers = rootLogger.getHandlers();
  return handlers.length == 0
      || (handlers.length == 1 && handlers[0] instanceof ConsoleHandler);
}

代码示例来源：origin: apache/geode

@Test
 public void headlessModeShouldRedirectBothJDKAndGFSHLoggers() {
  gfsh = new Gfsh(false, null, new GfshConfig());
  LogManager logManager = LogManager.getLogManager();
  Enumeration<String> loggerNames = logManager.getLoggerNames();
  while (loggerNames.hasMoreElements()) {
   String loggerName = loggerNames.nextElement();
   Logger logger = logManager.getLogger(loggerName);
   // make sure jdk's logging goes to the gfsh log file
   if (loggerName.startsWith("java")) {
    assertThat(logger.getParent().getName()).endsWith("LogWrapper");
   }
   // make sure Gfsh's logging goes to the gfsh log file
   else if (loggerName.endsWith(".Gfsh")) {
    assertThat(logger.getParent().getName()).endsWith("LogWrapper");
   }
   // make sure SimpleParser's logging will still show up in the console
   else if (loggerName.endsWith(".SimpleParser")) {
    assertThat(logger.getParent().getName()).doesNotEndWith("LogWrapper");
   }
  }
 }
}

代码示例来源：origin: org.springframework.boot/spring-boot

private void removeDefaultRootHandler() {
  try {
    Logger rootLogger = LogManager.getLogManager().getLogger("");
    Handler[] handlers = rootLogger.getHandlers();
    if (handlers.length == 1 && handlers[0] instanceof ConsoleHandler) {
      rootLogger.removeHandler(handlers[0]);
    }
  }
  catch (Throwable ex) {
    // Ignore and continue
  }
}

代码示例来源：origin: 4thline/cling

protected void removeLoggingHandler() {
  LogManager.getLogManager().getLogger("").removeHandler(loggingHandler);
}

代码示例来源：origin: apache/hive

private void initLogger() {
 java.util.logging.Logger rootLogger
  = java.util.logging.LogManager.getLogManager().getLogger("");
 for (java.util.logging.Handler h : rootLogger.getHandlers())
  rootLogger.removeHandler(h);
 SLF4JBridgeHandler.install();
}

代码示例来源：origin: org.slf4j/jul-to-slf4j

/**
 * Adds a SLF4JBridgeHandler instance to jul's root logger.
 * <p/>
 * <p/>
 * This handler will redirect j.u.l. logging to SLF4J. However, only logs enabled
 * in j.u.l. will be redirected. For example, if a log statement invoking a
 * j.u.l. logger is disabled, then the corresponding non-event will <em>not</em>
 * reach SLF4JBridgeHandler and cannot be redirected.
 */
public static void install() {
  LogManager.getLogManager().getLogger("").addHandler(new SLF4JBridgeHandler());
}

代码示例来源：origin: org.springframework.boot/spring-boot

private boolean isBridgeHandlerInstalled() {
  if (!isBridgeHandlerAvailable()) {
    return false;
  }
  java.util.logging.Logger rootLogger = LogManager.getLogManager().getLogger("");
  Handler[] handlers = rootLogger.getHandlers();
  return handlers.length == 1 && SLF4JBridgeHandler.class.isInstance(handlers[0]);
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * Removes the standard Android log handler due to an issue with not logging
 * entries lower than INFO level and adds a handler that produces
 * JME formatted log messages.
 */
protected void initializeLogHandler() {
  Logger log = LogManager.getLogManager().getLogger("");
  for (Handler handler : log.getHandlers()) {
    if (log.getLevel() != null && log.getLevel().intValue() <= Level.FINE.intValue()) {
      Log.v("AndroidHarness", "Removing Handler class: " + handler.getClass().getName());
    }
    log.removeHandler(handler);
  }
  Handler handler = new AndroidLogHandler();
  log.addHandler(handler);
  handler.setLevel(Level.ALL);
}

代码示例来源：origin: jMonkeyEngine/jmonkeyengine

/**
 * Removes the standard Android log handler due to an issue with not logging
 * entries lower than INFO level and adds a handler that produces
 * JME formatted log messages.
 */
protected void initializeLogHandler() {
  Logger log = LogManager.getLogManager().getLogger("");
  for (Handler handler : log.getHandlers()) {
    if (log.getLevel() != null && log.getLevel().intValue() <= Level.FINE.intValue()) {
      Log.v("AndroidHarness", "Removing Handler class: " + handler.getClass().getName());
    }
    log.removeHandler(handler);
  }
  Handler handler = new AndroidLogHandler();
  log.addHandler(handler);
  handler.setLevel(Level.ALL);
}

代码示例来源：origin: robovm/robovm

/**
 * Returns a named logger associated with the supplied resource bundle.
 *
 * @param resourceBundleName the resource bundle to associate, or null for
 *      no associated resource bundle.
 */
synchronized Logger getOrCreate(String name, String resourceBundleName) {
  Logger result = getLogger(name);
  if (result == null) {
    result = new Logger(name, resourceBundleName);
    addLogger(result);
  }
  return result;
}

代码示例来源：origin: robovm/robovm

/**
 * Gets an anonymous logger to use internally in a thread. Anonymous loggers
 * are not registered in the log manager's namespace. No security checks
 * will be performed when updating an anonymous logger's control settings.
 * <p>
 * The anonymous loggers' parent is set to be the root logger. This way it
 * inherits default logging level and handlers from the root logger.
 *
 * @param resourceBundleName
 *            the name of the resource bundle used to localize log messages.
 * @return a new instance of anonymous logger.
 * @throws MissingResourceException
 *             if the specified resource bundle can not be loaded.
 */
public static Logger getAnonymousLogger(String resourceBundleName) {
  Logger result = new Logger(null, resourceBundleName);
  result.isNamed = false;
  LogManager logManager = LogManager.getLogManager();
  logManager.setParent(result, logManager.getLogger(""));
  return result;
}

代码示例来源：origin: neo4j/neo4j

@Override
public Voice suppress()
  final Logger logger = LogManager.getLogManager().getLogger( "" );
  final Level level = logger.getLevel();
  final Handler[] handlers = logger.getHandlers();