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我正在尝试运行一个打印“Hello World！”的应用程序。该脚本在本地运行良好，但每次我运行它时

:load /path/to/script

输出：

    Loading /u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.scala...
    defined object test1

我试过用 spark-shell 启动它

spark-shell -i /path/to/script

但这也无法产生输出“Hello World”

我也尝试过调用 .Main 。

scala>：加载/u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.scala加载/u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.scala。 .. 定义对象 test1

scala> /u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.Main(Array("a")) :1: error: ';' 预期但“。” 成立。/u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.Main(Array("a"))

在定义对象 test1 后，我尝试删除文件路径：

scala> :load /u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.scala
Loading /u/hdpdlcu/Matt/test/SparkScalaCourse/src/com/sundogsoftware/spark/test1.scala...
defined object test1

scala> test1.main("a")
<console>:26: error: value main is not a member of object test1
       test1.main("a")
             ^

scala> test1.main()
<console>:26: error: value main is not a member of object test1
       test1.main()
             ^

test1.scala：

package com.sundogsoftware.spark

object test1 {

  def Main (args: Array[String]) {
    println("Hello World!")
  }
}
4

1 回答 1

0

运行 :load 后调用 test1.Main(Array("a")) 没有 pathToScript 工作。

于 2020-03-06T18:15:42.253 回答