use logger with spring boot code example

Example 1: spring logback configuration

@RestController
public class LoggingController {

    Logger logger = LoggerFactory.getLogger(LoggingController.class);

    @RequestMapping("/")
    public String index() {
        logger.trace("A TRACE Message");
        logger.debug("A DEBUG Message");
        logger.info("An INFO Message");
        logger.warn("A WARN Message");
        logger.error("An ERROR Message");

        return "Howdy! Check out the Logs to see the output...";
    }
}

Example 2: spring log properties

logging:
  #pattern:
    #file: %d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%
  file: app/application.log
  level: 
    org:
      springframework: INFO
      hibernate:
        SQL: INFO
        type:
          descriptor:
            sql:
              BasicBinder: INFO 
    web: DEBUG
    com: 
      codeswifter: DEBUG
##logging.pattern.file= %d{yyyy-MM-dd HH:mm:ss} [%thread] %-5level %logger{36} - %msg%
  pattern:    
    console: :%d %5p [%-20.20t] %-35.35logger{15}:%-4.4L |%-15.15X{Email}|%-32.32X{UserId}| - %m%n