Play controller using a custom logger

Application.scala

package controllers

import play.api.Logger
import play.api.mvc._

class Application extends Controller {

  lazy val logger = Logger(classOf[Application])

  def index = Action { implicit request =>
    logger.warn("See my message!") // [warn] - controllers.Application - 11 -  See my message!
    Ok(views.html.index("Your new application is ready."))
  }
}

logback.xml

<configuration>
    
  <conversionRule conversionWord="coloredLevel" converterClass="play.api.Logger$ColoredLevel" />

  <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%coloredLevel - %logger - %line -  %message%n%xException</pattern>
    </encoder>
  </appender>

  <!--
    The logger name is typically the Java/Scala package name.
    This configures the log level to log at for a package and its children packages.
  -->
  <logger name="play" level="INFO" />
  <logger name="application" level="DEBUG" />

  <root level="INFO">
    <appender-ref ref="STDOUT" />
  </root>

</configuration>