Scala Guice如何以字符串形式注入配置参数？

class AppConfig {
  var apiUrl: String = _
  var timeout: Int = _
}

class MyService @Inject() (config: AppConfig) {
  def doSomething(): Unit = {
    val apiUrl = config.apiUrl
    val timeout = config.timeout
    // 使用配置参数进行操作
  }
}

apiUrl=http://example.com/api
timeout=5000

val injector = Guice.createInjector(new AbstractModule {
  override def configure(): Unit = {
    val config = new AppConfig()
    val properties = new Properties()
    properties.load(getClass.getResourceAsStream("/config.properties"))
    config.apiUrl = properties.getProperty("apiUrl")
    config.timeout = properties.getProperty("timeout").toInt
    bind(classOf[AppConfig]).toInstance(config)
  }
})
val myService = injector.getInstance(classOf[MyService])
myService.doSomething()