51. Loggers

Spring Boot Actuator includes the ability to view and configure the log levels of your application at runtime. You can view either the entire list or an individual logger’s configuration which is made up of both the explicitly configured logging level as well as the effective logging level given to it by the logging framework. These levels can be:

  • TRACE

  • DEBUG

  • INFO

  • WARN

  • ERROR

  • FATAL

  • OFF

  • null

with null indicating that there is no explicit configuration.

51.1 Configure a Logger

In order to configure a given logger, you POST a partial entity to the resource’s URI:

{
    "configuredLevel": "DEBUG"
}