Logback config for Spring 4

<?xml version="1.0" encoding="UTF-8"?>                                                              
<configuration>
  <appender name="appender" class="ch.qos.logback.core.ConsoleAppender">
    <encoder>
      <pattern>%d{dd MMM yyyy HH:mm:ss} %-4r [%t] %-5p %c %x - %m%n</pattern>
    </encoder>
  </appender>
  <logger name="org.springframework" level="INFO"/>
  <logger name="ch.qos.logback" level="WARN"/>
  <root level="DEBUG">
    <appender-ref ref="appender"/>
  </root>
</configuration>