Playframework2.2でmemcachedを利用する ref: http://qiita.com/mychaelstyle/items/00e2699ad740ca5c9738

application.conf

memcached.1.host="mumocached1:11211"
memcached.2.host="mumocached2:11211"

Build.scala

val appDependencies = Seq(
    "com.github.mumoshu" %% "play2-memcached" % "0.3.0.2"
  )
  val main = play.Project(appName, appVersion, appDependencies).settings(
    resolvers += "Spy Repository" at "http://files.couchbase.com/maven2"
  )

play.plugins

5000:com.github.mumoshu.play2.memcached.MemcachedPlugin