使用Play从java类访问application.conf属性！ 2.0 [英] Accessing the application.conf properties from java class with Play! 2.0

问题描述

我想要添加一个对象到全局范围，为了构建它，我需要传递一个文件的路径。
我不想硬编码源文件路径，因此我想从application.conf中获取该路径。

I want to add an object to the Global scope, and in order to construct it I need to pass it a path to a file. I don't want to hard code the file path in the source, and so I want to get that path from the application.conf.

问题是我不知道如何从java类访问这些属性。
我试过这个：

The problem is that I don't know how to access these properties from the java class. I tried this:

Configuration.root().getString("file.path")

但以 NullPointerException 结尾。

我错了假设有一个全局配置实例，我可以使用？
谢谢。

Am I wrong in assuming that there's a global Configuration instance that I can use? Thanks.

推荐答案

尝试 Play.application（）。configuration（）。getString your.key）

如评论中所述（nico_ekito），请使用 play.Play 而不是 play.api.Play 。 play.api.Play 用于scala控制器（请参阅Marcus biesior Biesioroff的评论）

As noted in the comment (nico_ekito), please use play.Play and not play.api.Play. play.api.Play is for scala controllers (see comment by Marcus biesior Biesioroff)

a href =https://github.com/typesafehub/config> https://github.com/typesafehub/config 底下，所以它也可以提供一些见解。

Additionally, play uses https://github.com/typesafehub/config under the hood so it can also provide some insights.

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