
我想用我可以插入类的方法创建轻量级接口.这是 Scala中的一个简短示例: class DB { def find(id: String) = ...}trait Transformation extends DB { def transform(obj: String): String override def find(id: String) = transform

一、编写SessionFilter.scala代码packagefiltersimportjavax.inject.{Inject,Singleton}importakka.stream.Materializer