Logback is a logging framework wheter console or file, is nowadays the best option for logging your Spring Boot application. Here you can find more information about it. This time I will show you how to configure Logback.
First you need to add logback dependencies into your build.gradle file.
compile "ch.qos.logback:logback-classic:1.2.1"
compile "ch.qos.logback:logback-core:1.2.1"
Then under ${PROJECT_HOME}/src/main/resources create this logback.groovy file:
import ch.qos.logback.core.ConsoleAppender
import ch.qos.logback.core.rolling.RollingFileAppender
import ch.qos.logback.classic.encoder.PatternLayoutEncoder
import static ch.qos.logback.classic.Level.DEBUG
import static ch.qos.logback.classic.Level.INFO
appender("STDOUT", ConsoleAppender) {
encoder(PatternLayoutEncoder) {
pattern = "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{5} Groovy - %msg%n"
}
}
logger("com.jos.dem.vetlog", INFO)
logger('org.springframework', WARN)
root(WARN, ["STDOUT"])
Logback will give preference to groovy configuration over xml configuration.
If you want to send your loggin to a file, use this Groovy structure:
import ch.qos.logback.core.ConsoleAppender
import ch.qos.logback.core.rolling.RollingFileAppender
import ch.qos.logback.classic.encoder.PatternLayoutEncoder
import static ch.qos.logback.classic.Level.DEBUG
import static ch.qos.logback.classic.Level.INFO
appender("ROLLING", RollingFileAppender) {
encoder(PatternLayoutEncoder) {
pattern = "%d{yyyy-MM-dd HH:mm:ss.SSS} [%thread] %-5level %logger{5} Groovy - %msg%n"
}
rollingPolicy(TimeBasedRollingPolicy){
FileNamePattern = "vetlog-spring-boot-%d{yyyy-MM}.log"
}
}
logger("com.jos.dem.vetlog", INFO)
logger('org.springframework', WARN)
root(WARN, ["ROLLING"])
That’s it, when you run your project logback will send logging to console or file.
To download the project:
git clone https://github.com/josdem/vetlog-spring-boot.git
git fetch
git checkout feature/27
To run the project, please read the wiki and execute this command:
gradle bootRun -Dspring.config.location=$HOME/.vetlog-spring-boot/application-development.yml