Maven dependency: (version managed by our maven parent project pom.xml)
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> </dependency> |
How to use:
// import required classes import org.slf4j.Logger; import org.slf4j.LoggerFactory; // define logger private static final Logger LOGGER = LoggerFactory.getLogger(AuthenticationServiceImpl.class); // use in code try { // logic } catch (final StorageException e) { final String message = "(" + accountId + ") fail."; LOGGER.error(message, e); throw new AuthenticationServiceException(message, e); } |
FATAL logging level: (marker usage example)
// import utility import net.bolbat.utils.logging.LoggingUtils; // use in code try { // logic } catch (final ManagerException e) { final String message = "Can't initialize persistence service."; LOGGER.error(LoggingUtils.FATAL, message, e); throw new ServiceInstantiationException(message, e); } |
logback: (version managed by our maven parent project pom.xml)
<dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> </dependency> |
apache log4j: (version managed by our maven parent project pom.xml)
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> </dependency> |
apache commons-logging: (version managed by our maven parent project pom.xml)
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-jcl</artifactId> </dependency> |
java logging (version managed by our maven parent project pom.xml)
<dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-jdk14</artifactId> </dependency> |
Add maven dependency only for testing scope (version managed by our maven parent project pom.xml)
<dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <scope>test</scope> </dependency> |
Configure logger (logback example configuration)