Log:日志工具输出log的使用
日志的简单使用,三种方式。
- org.apache.commons.logging.Log
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5//import org.apache.commons.logging.Log;
//import org.apache.commons.logging.LogFactory;
private static final Log log = LogFactory.getLog(xxxServiceImpl.class);
log.info(Object msg); - log4j 1.x 版本:org.apache.log4j.Logger
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4//org.apache.log4j.Logger;
private final Logger logger = Logger.getLogger(this.getClass());
logger.info(Object msg); - log4j 2.x 版本:org.apache.logging.log4j.Logger
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3private static final Logger logger = LogManager.getLogger(xxxClass.class);
logger.info(String msg);