log4j的maven依赖和使用方法

https://logging.apache.org/log4j/2.x/

    org.apache.logging.log4j
    log4j-api
    2.17.2


  org.apache.logging.log4j
  log4j-core
  2.17.2

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

public class Log4j2Test {
    private static final Logger logger = LogManager.getLogger();

    public Log4j2Test(){
        logger.info( "Hello World!" );
    }
}