idea利用sbt打包scala程序爲jar包 併發布到集羣中測試

前提條件是建立好了wordcount項目，能夠參考Scala官方IDE教程 html Getting Started with Scala in IntelliJ Building a Scala Project with IntelliJ and sbt Spark Quick Start https://spark.apache.org/docs/latest/quick-start.html

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