也可以从与斯卡拉文件创建jar文件 [英] Cannot run jar file created from scala file

问题描述

这是我已经写在斯卡拉code。

This the code that I have written in scala.

object Main extends App {
    println("Hello World from Scala!")
}

这是我的 build.sbt 的

name := "hello-world"
version := "1.0"
scalaVersion := "2.11.5"
mainClass := Some("Main")

这是我跑创建的jar文件的命令。

This is the command that I have run to create the jar file.

sbt package

问题： HELLO-world_2.11-1.0.jar 的已在的目标/斯卡拉2.11 的创建了一个名为jar文件。但我不能运行该文件。这是给我一个错误说的的NoClassDefFoundError 的

Problem : A jar file named hello-world_2.11-1.0.jar has been created at target/scala-2.11. But I cannot run the file. It is giving me an error saying NoClassDefFoundError.

问：我在做什么错了？我希望我已经清楚我的问题。如果有一些混乱，那么请询问。先谢谢了。

Question : What am I doing wrong? I hope I have made my question clear. If there is some confusion then please ask. Thanks in advance.

推荐答案

它还说的什么的类没有找到。最有可能你是不包括斯卡拉-library.jar 。您可以运行 Scala的目标/斯卡拉2.11 / HELLO-world_2.11-1.0.jar 如果您有2.11斯卡拉可通过命令行或的java -cp＆LT;路径斯卡拉-library.jar＆GT;：目标/斯卡拉2.11 / HELLO-world_2.11-1.0.jar主（使用; 来代替：在Windows上）

It also says what class is not found. Most likely you aren't including scala-library.jar. You can run scala target/scala-2.11/hello-world_2.11-1.0.jar if you have Scala 2.11 available from the command line or java -cp "<path to scala-library.jar>:target/scala-2.11/hello-world_2.11-1.0.jar" Main (use ; instead of : on Windows).

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