如何从 Java 属性文件加载设置值? [英] How to load setting values from a Java properties file?

问题描述

有没有办法从属性文件中动态加载设置值?

Is there a way for me to dynamically load a setting value from a properties file?

我的意思是，而不是硬编码到 build.sbt

I mean, instead of hardcoding into build.sbt

name := "helloWorld"

有一些 application.properties 文件和

name=helloWorld

然后，在 build.sbt 文件中，有 name := application.properties["name"](最后一个例子纯粹是示意图，但我希望这个想法很清楚)

And then, in the build.sbt file, have name := application.properties["name"] (last example is purely schematic, but I hope the idea was clear)

推荐答案

您可以创建一个设置键来保存从文件中读取的属性.

You can create a setting key which holds properties read from a file.

import java.util.Properties

val appProperties = settingKey[Properties]("The application properties")

appProperties := {
  val prop = new Properties()
  IO.load(prop, new File("application.properties"))
  prop
}

name := appProperties.value.getProperty("name")

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