Output « log4j « Java Enterprise Q&A

1. Can IntelliJ create hyperlinks to the source code from log4j output?    stackoverflow.com

In the IntelliJ console, stack traces automatically contain hyperlinks that bring you to the relevant source files. The links appear at the end of each line in the format (Log4jLoggerTest.java:25). ...

2. log4j output suppressed?    stackoverflow.com

I'm brand new with log4j and I can't seem to figure this out. If I set log4j.configuration to some garbage file that doesn't exist, the following program works as I expect. ...

3. How can I direct log4j output so that different log levels go to different appenders?    stackoverflow.com

Is it possible to have "debug" and "info" output written to the console while the "info" output is only written to some log file? For example, given this logging:

What does ...

4. Eliminating unnecessary log4j setup output    stackoverflow.com

I'm using log4j in an app I'm developing to eventually run inside Tomcat/JBoss, but right now I'm running it from inside Eclipse. I've configured it to write to a ConsoleAppender using ...

5. log4j directs all log output to stdout even though it's not supposed to    stackoverflow.com

In my log4j.properties I have:


The appenders stdout and somewhereelse are both configured properly, stdout writes to the console and somewhereelse writes to a file. In my code in each class either I ...

6. log4j: one class; same level; two output files    stackoverflow.com

I don't seem to be getting any INFO level messages into Additions.log or Deletions.log even though I see the logging line get executed in the debugger. Here is my log4j.properties ...

7. Trimming down log output using log4j    stackoverflow.com

How can I achieve the following using log4j:

  • log only events coming from a specific category , i.e. com.example.app but not com.example.app.context or com.example.dao;
  • log all events with a level of WARN or ...

8. log4j: Log output of a specific class to a specific appender    stackoverflow.com

I use log4j and would like to route the output of certain Loggers to specific files. I already have multiple appenders in place. Now, to make debugging easier, I want to ...

9. Redirect output logs of javax.xml.ws and com.sun.xml.ws    stackoverflow.com

I am working on a SOAP based web service, with Sun's Metro. I am facing an annoying bug, each time I send a malformed SOAP object to my web service, sun's api ...

10. Capture log4J output with grep    stackoverflow.com

I know that log4j by default outputs to stderror. I have been capturing the out put of my application with the following command:

application_to_run 2> log ; cat log | grep FATAL
Is ...

11. log4j: output file depending on source calling class    stackoverflow.com

suppose I have a common class with logger initialized by its name:

public class SomeCalculationLogic {
private static final Log log = LogFactory.getLog(SomeCalculationLogic .class);

public void doCalculation() {
    log.info("doing calculations...");

12. Capturing Log4j output when executing TestNG tests    stackoverflow.com

I am executing TestNG tests , and the logging output is set to DEBUG, so in case of a failure I can get to inspect exactly what goes wrong. The problem is ...

13. How do I redirect a javaw.exe console output to a log file?    stackoverflow.com

I am wanting to start my Java program from a batch file. This is the script I want to use to start the app but the problem is that I ...

14. how to write different information to two different files using same logger of log4j?    stackoverflow.com

I'd like to write to two different files using my logger, which is declared like this:

public static final Logger logger = Logger.getLogger(Adapt.class);
the file log4j contains:
log4j.rootLogger=DEBUG, FA

#File Appender
log4j.appender.FA.layout.ConversionPattern= %m%n
Is it possible at ...

15. Show coloured log4j output in Eclipse console    stackoverflow.com

How can I configure Log4j to show in red the dump of a

log.error("some error",exception)
if an uncaught exception occurs in my java code, eclipse would show it in red, but when ...

16. Set log4j output log file underneath my project Not eclipse    stackoverflow.com

I use Eclipse as my IDE to develop my project. The log have been output to myproject/logs/log.log as I expected, until I did some setting that I ...

17. log4j: multiple output files (with different thresholds) and multiple loggers with different thresholds    stackoverflow.com

I have a logging set up as follows: 1) Three appenders, each set to append to a different file, each file a different threshold

<appender name="debug_log" ...>
    <param name="File" value="debug.log"/>

18. log4j truncates the stacktrace    stackoverflow.com

I am trying to track down a problem with GWT. I get an error which I want to track down to the source but log4j truncates the stacktrace by indicating ...

19. Specify log level for all log output in log4j for JBoss    stackoverflow.com

I am using JBoss 4.2.3 which uses log4j for its log configuration. I want to somehow specify in the jboss-log4j.xml that I want only log level ERROR and above to be ...

20. Log4j output on console instead of configured file    stackoverflow.com

I configured Log4j to log into a file but it is instead logging to stdout. it creates the log file but it does not write to it, instead to stdout. Here is my ...

21. Make log output more precise (log4j)    stackoverflow.com

I have a log output with equal time stamps:

22-11 12:23:23,023 INFO  [org...] TS YYY
22-11 12:23:23,023 INFO  [com...] TS 2
22-11 12:23:23,023 INFO  [com...] TS 3
22-11 12:23:23,023 INFO  [com...] ...

22. log4j console output    coderanch.com

When I run my application from within Eclipse my debug output appears in the eclipse 'console' window. If I want to see this output in the dos window that opens when I run my application do I need to change the xml log4j config file ? The syntax seems a little cryptic so say the least. Many thanks in advance.

23. log4j Output to Console and File    coderanch.com

24. Dynamically defined output log file in log4j    forums.oracle.com

I am trying to generate an output log file dynamically using log4j. I have standard configuration XML file for log4j where I have an appender configuired. In my java code I am trying to add appender to the logger and then change an output file: Logger logger = Logger.getLogger(ClassFSTest.class); Appender rfa =logger.getAppender("rolling"); rfa.setFile(myFileName); rfa.activateOprions(); However getAppender method returns NULL, ...

25. log4j output in different log files    forums.oracle.com

I have multithreaded application where in the main thread I am spawning new threads based on application logic. I want to output main thread messages into the different log file compare to to the log messages which are generated by the child threads. As of now in every thread I add new appender and output the messages in the appropriate file, ...

26. Log4J not creating any output file    forums.oracle.com

Hi, I've just started looking at log4j and following a simple example online. I have the folowing properties file log4j.rootLogger=INFO, stdout, logfile [color=#444444] log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - <%m>%n log4j.appender.logfile=org.apache.log4j.FileAppender log4j.appender.logfile.File=c:/mylog.log log4j.appender.logfile.MaxFileSize=512KB # Keep three backup files. log4j.appender.logfile.MaxBackupIndex=3 # Pattern to output: date priority [category] - message log4j.appender.logfile.layout=org.apache.log4j.PatternLayout log4j.appender.logfile.layout.ConversionPattern=%d %p [%c] - %m%n [/color] I have the properties file in ...