项目中用LOG代替System.out的写法

1.java类中

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

private static final Logger LOG=LoggerFactory.getLogger(XXX.class);

LOG.debug("");

LOG.info("");

LOG.warn("");

LOG.error("");

2.log4j.properties中

log4j.rootLogger=DEBUG, stdout
log4j.logger.org=WARN
log4j.logger.com.mixky=DEBUG
log4j.logger.com.mixky.dbac=DEBUG

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout.ConversionPattern=%d %p [%c] - %m%n