如何设置Play Framework 2.0的javac编译版本，以防止出现"Unsupported major.minor version"? [英] How can I set the javac compile version for Play Framework 2.0 to prevent "Unsupported major.minor version"?

问题描述

我正在使用的模块必须已经用Java 1.7编译，而我只有1.6.

A module I am using must have been compiled with Java 1.7, and I only have 1.6.

如果要针对特定​​版本(例如1.6)编译模块，如何在Play中进行设置！ Framework 2.0，这样我就可以防止出现"Unsupported major.minor version"错误.

If I want to for the module to be compiled for a specific version like 1.6, how can I set that in Play! Framework 2.0 so that I can prevent the "Unsupported major.minor version" errors.

正在播放！ 1.x，您可以在application.conf中设置"java.version = 1.6".

In Play! 1.x you could set "java.version=1.6" in the application.conf.

我认为这是在Play中！ 2.x可能需要在某处设置sbt-但是在哪里/如何?

I assume that in Play! 2.x it probably needs to be set somewhere for sbt - but where/how?

推荐答案

添加

javacOptions ++= Seq("-source", "1.6", "-target", "1.6")

build.sbt 文件对我有用(透明，在我的情况下，使用JDK 8进行构建是1.7).

to the build.sbt file worked for me (to be transparent, in my case it was 1.7 to build with JDK 8).

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