Spring Boot 日志级别、持久化与 SLF4J 配置详细攻略

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class LoggerController {
    private final static Logger logger= LoggerFactory.getLogger(LoggerController.class);
}

@RestController
@RequestMapping("/logger")
public class LoggerController {
    private final static Logger logger= LoggerFactory.getLogger(LoggerController.class);
    @RequestMapping("/printlog")
    public String logger(){
        logger.error("error....");
        logger.warn("warn....");
        logger.info("info...");
        logger.debug("debug...");
        logger.trace("trace...");
        return "打印日志级别";
    }
}

logging:
  level:
    root: debug

logging.level.root=debug

logging:
  file:
    name: logger/l og.log

logging.file.name=logger/log.log

  logback:
    rollingpolicy:
      max-file-size: 1KB
      file-name-pattern: ${LOG_FILE}.%d{yyyy-MM-dd}.%i

logging.logback.rollingpolicy.file-name-pattern=${LOG_FILE}.%d{yyyy-MM-dd}.%i
logging.logback.rollingpolicy.max-file-size=1KB

<dependency>
			<groupId>org.projectlombok</groupId>
			<artifactId>lombok</artifactId>
			<optional>true</optional>
		</dependency>

@Slf4j
public class LoggerController2 {
    public String logger(){
        log.info("info....");
        return "打印日志";
    }
}