Java中log4j 的使用
阿新 • • 發佈:2019-02-16
package com.cn.test; import java.util.concurrent.TimeUnit; import org.apache.log4j.Level; import org.apache.log4j.Logger; public class Lo4jTest { /* Get actual class name to be printed on */ static Logger log = Logger.getLogger(Lo4jTest.class.getName()); public static void main(String[] args) throws InterruptedException { log.setLevel(Level.ALL); log.trace("Trace Message!"); log.debug("Debug Message!"); log.info("Info Message!"); log.warn("Warn Message!"); log.error("Error Message!"); TimeUnit.SECONDS.sleep(5); log.fatal("Fatal Message!"); } }