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@suin(suin@TypeScriptが好き)inCraftsman Software

Scala:複数Mainクラスから実行するものを指定したい

Posted at

Mainクラスが複数あると、sbtでrunすると候補が出てきて、その中から数字で選択しないといけません…。

> run
[warn] Multiple main classes detected.  Run 'show discoveredMainClasses' to see the list

Multiple main classes detected, select one to run:

 [1] playground.actor.example1.SimpleExample
 [2] playground.actor.example2.ChatModelExample
 [3] playground.actor.example3.ActorLoggingExample
 [4] playground.basic.HelloWorld

これが地味にめんどくさいです。

そんなときはrunMainを使いましょう。クラス名の補完も効いて便利です。

> runMain playground.basic.HelloWorld
[info] Running playground.basic.HelloWorld
Hello World!!!
[success] Total time: 0 s, completed 2015/08/13 12:28:31
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