log4j

问题 For some strange reason, I have a line of code that is getting stuck in an infinite loop. This is the line: this.logger = LogManager.getLogger(getClass().getName()); A little context might be helpful: I have a machine that stores all the code and java .class files. I access this machine through sshfs and work directly on the .java files through Eclipse. If I login in the remote machine and execute my class, the code runs: $ ssh remote-machine $ cd /path/to/eclipse-project $ export CLASSPATH="

问题 I have an application that listens on a specific port to do its task. This application can run on multiple instances by specifying different ports in the argument. MyApp-1211.bat contains java MyApp 1211 MyApp-1311.bat contains java MyApp 1311 MyApp-1411.bat contains java MyApp 1411 This application logs to a file. The problem is all three instances log into a single file, myApp.log . Is there a way to tell log4j to use different log files? like: myApp-port1211.log myApp-port1311.log myApp

问题 I have a Spring application and it has several scheduled methods It seems Lo4J stop rolling to new file and grow to 10 Gbytes after the application running for a while. All configuration looks fine, and I only use notepad ++ to open log file(meaning no lock on log file by editor) So I ponder there might be another thread running in the application. I dong recall any muti-threading implementation in current application. Then is it possible that the @Scheduled method causes the issue? 回答1:

问题 I want to capture the log4j logging comments in the following way. Is it possible ? If so then how should my log4j.properties look like ?? My Message : 2009-05-22 17:07:28 Thanks Rink 回答1: Use the following conversion pattern: "%m: %d{yyyy-MM-dd HH:mm:ss}%n" without the quotes. If you wanted to use ConsoleAppender, your log4j.properties file would contain: log4j.rootLogger=debug, CON log4j.appender.CON=org.apache.log4j.ConsoleAppender log4j.appender.CON.layout=org.apache.log4j.PatternLayout

问题 Sometimes logging needs to be enabled/disabled at runtime only during a specific phase of the execution of a code (e.g. for debugging purposes). Now, I use Java and Log4J to debug. This is my log4j.properties file: # Define the root logger with appender file log = /Users/Admin/Documents/log4j log4j.rootLogger = DEBUG, stdout, file #Logging for class Solution in package org.solver will be disabled log4j.category.org.solver.Solution = OFF, stdout, file # Define the file Console appender log4j

问题 I'm trying to exclude all the logging modules from a jboss-deployment-structure.xml in JBoss 6 EAP. My jboss-deployment-structure.xml is: <jboss-deployment-structure> <deployment> <exclusions> <module name="org.apache.log4j" /> <module name="org.jboss.logging" /> <module name="org.jboss.logmanager" /> <module name="org.jboss.log4j.logmanager" /> </exclusions> </deployment> </jboss-deployment-structure> So after I deploy my .war with said configuration I get: [ModuleClassLoader for Module "org

问题 What is a rollingfile appender ? I want my jboss to delete logs either exceeding a maximum size or exceeding a certain date. People on this forum have suggested me to use rollingfile appender. How do I configure it in jboss-log4j.xml file ? 回答1: Here is an example: <!-- A time/date based rolling appender --> <appender name="FILE" class="org.apache.log4j.DailyRollingFileAppender"> <param name="File" value="server.log"/> <param name="Append" value="false"/> <!-- Rollover at midnight each day --

问题 I'm writing a Grails plugin that will impose very specific log4j settings (in its own log4j.xml ), and I would like to configure it such that an app which uses this plugin is forced to use the plugin's log4j configuration (instead of any log4j configs that the app itself has defined). For example, let's say I want the plugin to force all downstream Grails apps to log to a file called /var/log/fizz.log . How could I make this work? Update : And if it's not possible for the plugin to override

问题 Ok, so I have this stupid library I'm using (documentum DFC), which does a check to see if Logger.getRootLogger().getAllAppenders().hasMoreElements() == false , if so, it resets my rootLogger level to WARN , which destroys my logging after that. So in an effort to stop this, I'm attempting to add an appender to the root logger just to see if I can get it to stop doing that code. However when I call Logger.getRootLogger().addAppender(new ConsoleAppender()); that function is still coming up

问题 I have heard that a .properties file in java can accept String arguments ({0}, {1}, and so on...) Can you please provide an example to show how to use these kind of arguments in the log4j.properties file? Also, please help with a sample code showing how to pass the argument to the file while loading the file. Links to any useful articles will also help 回答1: Sample properties in log4j.properties log4j.appender.file.File=${LOG_FILE_PATH}/${LOG_FILE_NAME} Bear in mind that log4j will try to find