java.util.logging

In the java.util.logging logging framework there's a special Logger instance named "global" , but I can't find any documentation of what its intended use is. The documentation for Logger.getGlobal() just says Return global logger object with the name Logger.GLOBAL_LOGGER_NAME . Logger.GLOBAL_LOGGER_NAME , in turn, is documented only as GLOBAL_LOGGER_NAME is a name for the global logger. My fairly extensive searches didn't turn up any more useful documentation. What is the global logger intended to be used for? Is that documented somewhere that I missed? The "global" Logger object is provided

I am using Tomcat 7.0.28, running under OpenJDK 1.7 on Ubuntu, and am trying to modify the formatting string used by java.util.logging.SimpleFormatter. According to the Javadocs for that class, I can specify the property java.util.logging.SimpleFormatter.format to change the format. And indeed, when I run my webapp in Eclipse and change this property in my logging.properties file, it works. However, when I deploy the app to Tomcat, this property does not seem to have any effect. I am confident that my properties file is being read correctly, as other changes that I make to it do indeed take

I have a simple console app which uses apache's PDFBox library, which in turn uses commons logging. I'm getting a lot of junk messages in my console which I'd like to suppress: Feb 15, 2011 3:56:40 PM org.apache.pdfbox.util.PDFStreamEngine processOperator INFO: unsupported/disabled operation: EI In my code, I've tried to reset the log levels to no avail: Logger.getLogger("org.apache.pdfbox.util.PDFStreamEngine").setLevel(Level.OFF); Logger.getLogger("org.apache.pdfbox.util").setLevel(Level.OFF); Logger.getLogger("org.apache.pdfbox").setLevel(Level.OFF); Despite these settings, the messages are

Right now I am using java.util.logging to log the entry and exit points of each method in my Java project. This is very useful to me when debugging. I have this piece of code at the beginning of each method and a similar one at the end: if (logger.isLoggable(Level.FINER)) { logger.entering(this.getClass().getName(), "methodName"); } Where "methodName" is the the name of the method (hardcoded). So I was wondering if there is a way to do this automatically without having to include this code in every method. Salles I suggest the use of Aspect Oriented Programming. For example, using the AspectJ

This might be a stupid question but I am a bit lost with java Logger private static Logger logger = Logger.getLogger("order.web.OrderManager"); logger.info("Removed order " + id + "."); Where do I see the log? Also this quote from java.util.logging.Logger library: On each logging call the Logger initially performs a cheap check of the request level (e.g. SEVERE or FINE) against the effective log level of the logger. If the request level is lower than the log level, the logging call returns immediately. After passing this initial (cheap) test, the Logger will allocate a LogRecord to describe

This question already has an answer here: Where does java.util.logging.Logger store their log 3 answers Netbeans thoughtfully sprinkles Logger.getLogger(this.getClass().getName()).log(Level. [...] statements into catch blocks. Now I would like to point them all to a file (and to console). Every logging tutorial and such only me tells how to get a specific logger to output into a file, but I assume there is a better way than fixing every automatically generated logging statement? Setting a handler for some sort of root logger or something? I just add the following at startup Handler handler =

I am using : log.info("Message"); and the output is: Jul 8, 2014 12:58:02 PM myclass main INFO: message How do i just print the message without the date and INFO: ? Change the format of the SimpleFormatter using the system property: -Djava.util.logging.SimpleFormatter.format="%2$s: %5$s%6$s%n" or in the logging.properties : java.util.logging.SimpleFormatter.format=%2$s: %5$s%6$s%n All of these properties are documented in the format method. 来源： https://stackoverflow.com/questions/24637600/how-to-format-date-in-java-logging

My app uses many libraries and I'm using java.util.logging for logging. I'd like to be able to set different logging levels for each library by doing something like: org.datanucleus.*.level = WARNING com.google.apphosting.*.level = WARNING com.myapp.*.level = FINE Is is possible? You shouldn't use "*". A sample logging.properties could be such as: handlers=java.util.logging.ConsoleHandler .level=ALL java.util.logging.ConsoleHandler.level = ALL java.util.logging.ConsoleHandler.formatter=java.util.logging.SimpleFormatter org.datanucleus.level=WARNING org.datanucleus.handler=java.util.logging