48 lines
1.0 KiB
Plaintext
48 lines
1.0 KiB
Plaintext
[[using-shell-customization-logging]]
|
|
= Logging
|
|
|
|
On default a _Spring Boot_ application will log messages into a console which
|
|
at minimum is annoying and may also mix output from a shell commands.
|
|
Fortunately there is a simple way to instruct logging changes via boot properties.
|
|
|
|
Completely silence console logging by defining its pattern as an empty value.
|
|
|
|
[source, yaml]
|
|
----
|
|
logging:
|
|
pattern:
|
|
console:
|
|
----
|
|
|
|
If you need log from a shell then write those into a file.
|
|
|
|
[source, yaml]
|
|
----
|
|
logging:
|
|
file:
|
|
name: shell.log
|
|
----
|
|
|
|
If you need different log levels.
|
|
|
|
[source, yaml]
|
|
----
|
|
logging:
|
|
level:
|
|
org:
|
|
springframework:
|
|
shell: debug
|
|
----
|
|
|
|
Passing contiguration properties as command line options is not supported but
|
|
you can use any other ways supported by boot, for example.
|
|
|
|
[source, bash]
|
|
----
|
|
$ java -Dlogging.level.root=debug -jar demo.jar
|
|
$ LOGGING_LEVEL_ROOT=debug java -jar demo.jar
|
|
----
|
|
|
|
NOTE: In a GraalVM image settings are locked during compilation which means
|
|
you can't change log levels at runtime.
|