Java 日志工具使用

日志的简单使用，两种方式：org.apache.commons.logging.Log日志包，org.apache.log4j.Logger日志包。

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
private static final Log log = LogFactory.getLog(this.getClass());

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
private static Logger logger = LoggerFactory.getLogger(xxxClass.class);

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
private static final Logger logger = LogManager.getLogger(xxxClass.class);

import java.util.logging.Logger;
Logger logger = Logger.getLogger("serviceLogger");