How to enable trace/debugging output with Anorm on Play 2.4.0

Question

With Play 2.4.0 Anorm got moved to an external package and logging got changed to LogBack (http://logback.qos.ch)

All well and good but nowhere are the class/package

Answer 1

You can intercept calls going thru JDBC driver using

log4jdbc

I have used successfully with JPA/hibernate and Hikary on Play 2.4, the setup should be identically since this influences the JDBC layer.

Add the library to your build.sbt:

"org.bgee.log4jdbc-log4j2" % "log4jdbc-log4j2-jdbc4" % "1.12"

Adjust the config. Add log4jdbc, the log4jdbc automatically detects the underlying driver from the string: mysql. If you are using an obscure JDBC driver, you can configure it using config options - see docs below.

db.default.url="jdbc:log4jdbc:mysql://localhost/......"
db.default.driver=net.sf.log4jdbc.sql.jdbcapi.DriverSpy

Example of my logback.xml, relevant part:

    
    


    



    ${application.home}/logs/sql.log
    
        %date - [%level] - from %logger in %thread %n%message%n%xException%n
    

And, finally the log4jdbc.log4j2.properties (create it in the conf directory which is on the class path):

log4jdbc.spylogdelegator.name=net.sf.log4jdbc.log.slf4j.Slf4jSpyLogDelegator

More docs: https://code.google.com/p/log4jdbc-log4j2/

Let me know if this works for you