slf4j logging in console instead of file

Question

I'm testing Milton WebDAV API and I need to log when some document is opened. I can have it logging on Eclipse's console, but can't make it put the message on a external file.

Found several links here at SO and Google, but none worked. I've spent about 4h in this already. Any guesses?

Here's the situation (tried to format as best as I could):

log4j.properties

# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=/home/paulo/workspace/MiltonTutorial/logs/log.txt
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

# Root logger option
log4j.rootLogger=INFO, file

DocumentResource.java

public class DocumentResource implements GetableResource,
    PropFindableResource, DeletableResource, MoveableResource,
    CopyableResource, ReplaceableResource, PropPatchableResource, MultiNamespaceCustomPropertyResource {

    private final static Logger log = LoggerFactory.getLogger(DocumentResource.class);
    Document doc;

    (...)

    @Override
    public void sendContent(OutputStream out, Range arg1,
            Map<String, String> arg2, String arg3) throws IOException,
            NotAuthorizedException, BadRequestException {
        log.info(">>> File {} opened", doc.getFileName());

        out.write(this.doc.getContent());
    }

Eclipse's console when execute 'get testfile' on a WebDAV client

08/02/2013 18:03:15 com.ettrema.tutorial.milton.DocumentResource sendContent INFO: >>> File testfile opened

log.txt big content here

Thanks!

Solution

Just edit your log4j file to be something like this:

log4j.rootLogger=DEBUG, A2

log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%-5p %c %x - %m%n

log4j.appender.A2=org.apache.log4j.FileAppender  
log4j.appender.A2.File=/a.log  
log4j.appender.A2.layout=org.apache.log4j.PatternLayout
log4j.appender.A2.layout.ConversionPattern=%-5p %c %x - %m%n

log4j.logger.io.milton=TRACE

If the logger settings arent being applied (ie you're not seeing logs appear in your file) then you probably have another log4j.properties file somewhere in your classpath which is being used instead of this one. Sometimes it can be included in jar files (eek!)

Comments

[paulochf]

Hey Brad! I'm sure that isn't another .properties file anywhere, but I'm going to try your suggestion. =)

[paulochf]

Tks for the tip! I'm going to check this out (tomorrow! Today is holiday =)

[paulochf]

Yeah, slf4j-log4j12.jar is there.

[paulochf]

It keeps logging just messages from org.hibernate..., io.milton is not on the file.

[paulochf]

I realized now that your .properties last line references io.milton. Shouldn't it reference the DocumentResource.java package?