Do not use System.out.println in server side code

by

System.out.println is an IO-operation and therefor is time consuming.
The Problem with using it in your code is, that your program will wait until the println has finished. This may not be a problem with small sites but as soon as you get load or many iterations, you’ll feel the pain.

The better approach is to use a logging framework.
They use a message queue and write only if no other output is going on.

And another benefit is that you can configure separate log files for different purposes.
Something your Ops team will love you for.

Read more here:

More Related Contents:

  1. How to Create a Custom Appender in log4j2?
  2. Redirect System.out.println
  3. Turning off hibernate logging console output
  4. How can I create 2 separate log files with one log4j config file?
  5. How to use AOP with AspectJ for logging?
  6. Should you report the message text of exceptions?
  7. How can we print line numbers to the log in java
  8. Most efficient way to log messages to JavaFX TextArea via threads with simple custom logging frameworks
  9. How to use MDC with thread pools?
  10. Where can I view Tomcat log files in Eclipse?
  11. Should a “static final Logger” be declared in UPPER-CASE?
  12. log4j configuration via JVM argument(s)?
  13. how to log Spring 5 WebClient call
  14. How do I change java logging console output from std err to std out?
  15. Logging user activity in web app
  16. How can I configure Logback to log different levels for a logger to different destinations?
  17. Spring: Standard Logging aspect (interceptor)
  18. Logback to log different messages to two files
  19. how to make log4j to write to the console as well
  20. Disabling Log4J Output in Java
  21. Know of any Java garbage collection log analysis tools? [closed]
  22. Disable the log from specific class/jar via logback.xml
  23. How to delete old logs with log4j2
  24. Error “java.lang.NoSuchMethodError: org.jboss.logging.Logger.getMessageLogger”
  25. Spring Boot, logback and logging.config property
  26. java.util.logging: how to suppress date line
  27. java.util.logging.Logger doesn’t respect java.util.logging.Level?
  28. How to create different log files for different packages using same log4j logger?
  29. Log4j2 (2.1) custom plugin not detected by packages attribute
  30. Log4J: Strategies for creating Logger instances

Leave a Comment