lombok Log4j in spring boot

Question

I work for a legacy spring boot project and they used @Log4j from lombok to display logs, but it seems that logging is disabled somewhere because no log is displayed.

Where I can verify if there is some configuration to disable logging.

This is an example for logging:

import lombok.extern.log4j.Log4j;
//........
@Log4j
public abstract class MyClassImpl implements MyClass{
    public String extractPNS(final String session, final String nomFichier, final String path, final String encoding) {
        MyClassImpl.log.debug("My class execution start...");
    }
}

Answer 1

There will be log folder inside your application . First check the config in any .properties file inside your application name

Answer 2

Have you checked log level? If it is set to INFO you won't be able to see DEBUG logs. It is configurable under *.properties or *.yml in src/main/resources . Also check for log4j.xml file which might be used co to configure Log4j .

Answer 3

I know this question is a bit old but I think it still needs an answer.

It is better to logging facade Slf4j instead of implementation specific log4j like this:

import lombok.extern.slf4j.Slf4j;

@Slf4j
public abstract class MyClassImpl implements MyClass {
    public String extractPNS(final String session, final String nomFichier, 
       final String path, final String encoding) {
        log.info("My class execution start...");
    }
}

Then make sure you have a valid log4j config available in Spring Boot App's classpath somewhere that doesn't disable logging at info level.