java.util.logging

来源： https://stackoverflow.com/questions/22670627/java-logger-apostrophe-issues-with-tokens

问题 Currently I get the following output from code run Caused by: java.lang.NullPointerException at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:227) at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:256) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:560) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at com.gargoylesoftware.htmlunit.html

问题 Currently I get the following output from code run Caused by: java.lang.NullPointerException at com.gargoylesoftware.htmlunit.html.HtmlScript$2.execute(HtmlScript.java:227) at com.gargoylesoftware.htmlunit.html.HtmlScript.onAllChildrenAddedToPage(HtmlScript.java:256) at com.gargoylesoftware.htmlunit.html.parser.neko.HtmlUnitNekoDOMBuilder.endElement(HtmlUnitNekoDOMBuilder.java:560) at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source) at com.gargoylesoftware.htmlunit.html

问题 I have followed the BIRT FAQ in regard to getting BIRT's logging (which seems to be based on java.util.logging ) redirected to log4j, which is my project's standard. I've subsequently made a BIRT logger like so: public class BirtLogger extends Handler { private final Logger log = Logger.getLogger(BirtLogger.class); @Override public void publish(LogRecord record) { Level level = record.getLevel(); String message = record.getMessage(); if (Level.SEVERE.equals(level)) { log.fatal(message); }

问题 I have followed the BIRT FAQ in regard to getting BIRT's logging (which seems to be based on java.util.logging ) redirected to log4j, which is my project's standard. I've subsequently made a BIRT logger like so: public class BirtLogger extends Handler { private final Logger log = Logger.getLogger(BirtLogger.class); @Override public void publish(LogRecord record) { Level level = record.getLevel(); String message = record.getMessage(); if (Level.SEVERE.equals(level)) { log.fatal(message); }

问题 I have a tool that is ran in multiple JVMs but logs to the same %t (temp) directory. I am using the %u (unique) pattern variable in the logging.properties file so that each instance logs to a different log file. If the process identifies a failure (this is a monitoring tool) it sends an email and I want to attach the log file of the particular instance that encountered the failure. But how do I get the log file path? Also gladly accepted would be a better approach if this is not a good one.

问题 I'm trying to get the logs of my connection with HTTP Builder. I read a lot and heard to set up a configuration file. I'm executing my jar from the terminal with this command java -jar -Djava.util.logging.config.file=logging.properties Console-0.1.jar And my logging.properties looks like this handlers=java.util.logging.ConsoleHandler java.util.logging.ConsoleHandler.level=ALL .level=FINEST httpclient.wire.header.level=FINEST org.apache.commons.httpclient.level=FINEST I don't get why it's not

问题 I'm trying to get the logs of my connection with HTTP Builder. I read a lot and heard to set up a configuration file. I'm executing my jar from the terminal with this command java -jar -Djava.util.logging.config.file=logging.properties Console-0.1.jar And my logging.properties looks like this handlers=java.util.logging.ConsoleHandler java.util.logging.ConsoleHandler.level=ALL .level=FINEST httpclient.wire.header.level=FINEST org.apache.commons.httpclient.level=FINEST I don't get why it's not

问题 I have created a common logger in the following manner in a root class that is referenced by many sub classes. public static final Logger LOGGER = Logger.getLogger(RootClass.class.getName()); Then I am accessing that logger in child classes in the following manner. private static final Logger LOGGER = RootClass.LOGGER; I have a main classes which receives inputs from users and it calls a method in the RootClass to configure the logger. logStatus = messageBus.configureLogPath(logPath,logLevel)

问题 Normally in applications (Take web application for example) we have a single instance of the logger created during the startup. It can even be a singleton and it doesn't matter. The important thing is there is 1 instance for the whole application. We use java.util.logger Now image you have two requests from two different users which throw an exception and we are logging those which get written to the log file. Is the write in these two different requests to the log file synchronized in