如何在 Play 框架 Guice 模块中加载和读取配置

Question

问题：

我知道我们可以在Play框架应用程序的其余部分注入配置模块，但我想在模块配置期间获取我的appliciation.conf信息。我该怎么做？

   class BaseModule extends AbstractModule with ScalaModule with AkkaGuiceSupport {

    override def configure(): Unit = {
        val onAzure = ??? // < How can I pull configuration here?
        if (onAzure) {
        bind[PersonService].to[AzurePersonService]
        } else {
        bind[PersonService].to[AWSPersonService]
        }
    }

Answer 1

解决方案：

您可以在模块文件中手动实例化配置。

    import com.typesafe.config.ConfigFactory
    import play.api.Configuration


    class BaseModule extends AbstractModule with ScalaModule with AkkaGuiceSupport {
    private val logger = Logger(this.getClass)

    override def configure(): Unit = {
        val config = new Configuration(ConfigFactory.load())
        val onAzure = config.get[Option[Boolean]]("cloud.mode.onAzure").getOrElse(false)
        if (onAzure) {
        bind[PersonService].to[AzurePersonService]
        } else {
        bind[PersonService].to[AWSPersonService]
        }
    }