通过 sbt 传递 JVM 参数 [英] Passing JVM args through sbt

问题描述

我正在尝试将第 3 方 jar 添加到我的 java 库路径.如果我使用 -Djava.library.path=a-3rd-party-lib.jar 调用 sbt，那么它适用于 run-main 的 第一次调用MyClass 在 sbt 中，但此后第 3 方代码抱怨 jar 不在 java 库路径中.我还尝试将 javaOptions += "-Djava.library.path=a-3rd-party-lib.jar" 添加到我的 build.sbt 文件中，但这并没有奏效(即使对于首轮).将此命令限定为 javaOptions in (Test,run) += "-Djava.library.path=a-3rd-party-lib.jar" (如文档中所示)也不起作用.

I'm trying to add a 3rd party jar to my java library path. If I invoke sbt with -Djava.library.path=a-3rd-party-lib.jar, then it works for the first invocation of run-main MyClass inside sbt, but thereafter the 3rd party code complains that the jar is not in the java library path. I have also tried adding javaOptions += "-Djava.library.path=a-3rd-party-lib.jar" to my build.sbt file, but this hasn't worked (even for the first run). Qualifying this command as javaOptions in (Test,run) += "-Djava.library.path=a-3rd-party-lib.jar" (as seen in the docs) hasn't worked either.

我做错了什么，还是这是一个奇怪的错误?

Am I doing something wrong, or is this a strange bug?

仅供参考，我使用的是 sbt 0.13.0

FYI I'm using sbt 0.13.0

推荐答案

javaOptions 只有当你 fork run 并且 sbt 默认不 fork 时才会生效.有关详细信息，请参阅 分叉 文档，但对 run 和 runMain 与:

javaOptions only takes effect if you fork run and sbt does not fork by default. See the Forking documentation for details, but forking is enabled for run and runMain with:

fork in run := true

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