tomcat - println() in Spring Boot logs

Question

I use System.out.println() to debug my Spring Boot application. It is fine in my IDE. When run standalone, there is a strange situation when println from my @Controller prints to the console, but println from my @RestController doesn't (I see them both printing to the output in the IDE). I have this in application.properties:

server.tomcat.accesslog.enabled=true
server.tomcat.accesslog.directory=/dev
server.tomcat.accesslog.prefix=stdout
server.tomcat.accesslog.buffered=false
server.tomcat.accesslog.suffix=
server.tomcat.accesslog.file-date-format=

I am not sure what these constants mean. Is there a method of having all println from all threads print to the console? The @RestController executes, because Tomcat shows that it has been called, it returns 200 and the application works correctly.

question from:https://stackoverflow.com/questions/65852149/println-in-spring-boot-logs

Answer 1

Prefer using logs (slf4j, log4j) instead of System.out.println With right configuration, it will write your logs in a file ".log", with date and time of traces (info, debug, warn, error levels) It is more appropriate if you want to deploy your app on a remote server.