java.util.logging

问题 I'm working on a mobile banking solution using Mobile First v 7.0 and one of the requirements is to isolate the customer's logs in a dedicated log file which gets created once a session is started to track all the details by session. Is it possible to do such thing ? I'm using Liberty profile v 8.5 and I wonder if it's handled in Liberty or there is something which can be done from Mobile First perspective. 回答1: This is not related to MobileFirst but to the underlying application server that

问题 I'm using Tomcat 6, and this is my logging.properties: handlers = org.apache.juli.FileHandler, java.util.logging.ConsoleHandler .level=FINE org.apache.catalina.core.ApplicationContext.level = OFF org.apache.juli.FileHandler.level = ALL org.apache.juli.FileHandler.directory = ${catalina.base}/logs org.apache.juli.FileHandler.prefix = mylog. java.util.logging.ConsoleHandler.level = FINE java.util.logging.ConsoleHandler.formatter = java.util.logging.SimpleFormatter On the one hand, Tomcat seems

问题 Situation: We use SLF4j and Log4j 2 with asynchronous appenders Problem is we also use JSF which uses java.util.Logging . I see all kinds of heinous warnings about performance in regards to using jul-to-slf4j due to the fact that you can't just chuck out java.util.Logging because it's in the JDK and because... well here is what the documentation at http://www.slf4j.org/legacy.html says: "...Consequently, j.u.l. to SLF4J translation can seriously increase the cost of disabled logging

问题 I want to have the output of logger and inputstream in the eclipse console. But everytime I execute, the result is always not in the same order. I have several classes with one main class to call the others and I put logger to each method for debugging. I print the result to console. I also have the method to retrieve the inputstream as string and print it into console. The output example mai 19, 2015 4:10:58 PM ScriptPack.Section findSection INFO: findSection OK mai 19, 2015 4:10:58 PM

问题 I am trying to add a custom log handler to my java application. I have implemented a InnerLogger class that extends java.util.Logging.Handler class. And in my logging.properties declared as a handler: handlers:com.mycompany.util.InnerLogger But when I launch the development sever, I got the following error: Can't load log handler "com.mycompany.util.InnerLogger" java.lang.ClassNotFoundException: com.mycompany.util.InnerLogger I can add my custom handler to loggers one by one ,but I just

问题 I am writing a custom log configuration class that sets up a particular handler and associates it with the root logger, and plan to use it in multiple applications. I am concerned that actual program code will remove that handler and install a different one. Is there a way that a handler can detect that it had been removed from a particular logger, or for a logger to report that associates have changed? My only other alternative is to have a thread that will regularly poll the root loggers

问题 I'm using java.util.logging for logging and tracing purposes. How can I within a Java application dynamically set the file to which the log should be written. 回答1: The java.util.logging.FileHandler might do its job for you. The following code snippet shows a simple example how to do set the logging destination programmatically: Logger logger = Logger.getLogger("my.logger.name"); try { FileHandler handler = new FileHandler("application.log", true); logger.addHandler(handler); } catch

问题 I have a java project that I use maven to build. I am using java.util.logging.Logger in my project and would like to configure it using a logger.properties file (not command line). I created a logger.properties file like this: handlers=java.util.logging.FileHandler, java.util.logging.ConsoleHandler .level=WARNING java.util.logging.SimpleFormatter.format=[%4$s] %5$s %n java.util.logging.config.file="../../results/api.log" Here are the problems that I'm having: java.util.logging.SimpleFormatter

问题 I am trying to use commons logging and want to use java.util.logging as underlying mechanism. LogTest.java import org.apache.commons.logging.*; public class LogTest { public static void main(String args[]) { System.setProperty("java.util.logging.config.file","log.properties"); Log logger = LogFactory.getLog(LogTest.class); logger.trace("trace msg"); } } I have src/main/resources/log.properties ( I am using maven project ) handlers=java.util.logging.ConsoleHandler # Default global logging

问题 I need to redirect Jersey request/response log to my log4j2. I have Jersey logging enabled by using this code on my ApplicationJAXRS extends Application : @Override public Set<Class<?>> getClasses() { return new HashSet<Class<?>>() {{ add(LoggingFilter.class); }}; } It seems that Jersey uses JUL (Java Logging) internally and the default output is STDOUT. At this moment I can see the STDOUT on Eclipse Console. The Log4j2 documentation have a section about JDK Logging Adapter. It says To use