How to log with Weld and AS 7.1

[specialagent]

Hi there,

Im wondering how I can use logging in my JEE6 WebApp with JBoss AS 7.1.1.

As I know I should use slf4j, which belongs to AS 7. Then I can @Inject the appropriate Logger instance in my beans as describes in

http://docs.jboss.org/weld/reference/1.0.1-Final/en-US/html/extensions.html

But this does not work. I have added to my pom.xml:

{code:xml}

	<artifactId>maven-war-plugin</artifactId>
	<version>2.1.1</version>
	<configuration>
	<!-- Java EE 6 doesn't require web.xml, Maven needs to catch
	up! -->
	<failOnMissingWebXml>false</failOnMissingWebXml>
				<archive>
					<manifestEntries>
						<Dependencies>org.slf4j</Dependencies>
					</manifestEntries>
				</archive>
	</configuration>

{code}

Then I do not have slf4j jar in my eclipse project build path. So I can not use it. If I add a normal dependecy to slf4j in my pom.xml, then the application

does not start anymore and JBoss Tools are saying "No bean is eligible for injection to the injection point [JSR-299 §5.2.1]".

Well.... I am pretty confused about logging in JEE apps... I just want to inject a logging instance, log with debug and info, use templates... everything like Seam2 logging does...

How is this possible?

Thank you.

[jamezp]

Do you also have the dependency set in the dependency section of your POM? You might want to try that out just to see if the error goes away.

[specialagent]

Thank you for your answer, but I found JBoss Soldier (from Seam 3) and its offers everything I need.

Here are some tips:

1. Add dependency to pom for maven (see http://seamframework.org/Seam3/Solder)

2. Configure logging standalone.xml

2a. add your own logger category

{code:xml}

<logger category="de.mdames">

     <level name="TRACE"/>

</logger>

{code}

2b. set console (or file-) handler level to TRACE

2c. keep root logger level at INFO, otherwise JBoss AS will log too much

3. Inject Logger

{code:java}

import org.jboss.solder.logging.Logger;

..

@Inject private Logger log;

{code}

4. Use logger instance

{code:java}

log.debugv("Trying to authenticate {0}", username);

{code}

5. Restart JBoss AS

Hope someone find this useful.