springboot系列教程（二）：Log4j2日志信息（含源码）

package com.boot.log4j2.controller; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class Log4j2Controller { private static final Logger LOGGER = LoggerFactory.getLogger(Log4j2Controller.class); /** * 日志级别 * OFF > FATAL > ERROR > WARN > INFO > DEBUG > TRACE > ALL */ @RequestMapping("/printLog") public String printLog (){ LOGGER.error("ERROR 级别日志"); LOGGER.warn("WARN 级别日志"); LOGGER.info("INFO 级别日志"); LOGGER.debug("DEBUG 级别日志"); LOGGER.trace("TRACE 级别日志"); return "success" ; } }