private Logger logger= LoggerFactory.getLogger(ElasticSearchService.class);
logger.info("{} {}",a,b)同時打印出a和b兩個參數
logger.info("a:"+a) 打印參數a
System.out.println("a:",a); 打印參數a
private Logger logger= LoggerFactory.getLogger(ElasticSearchService.class);
logger.info("{} {}",a,b)同時打印出a和b兩個參數
logger.info("a:"+a) 打印參數a
System.out.println("a:",a); 打印參數a