如何为scala对象提供具有依赖注入的类？

import com.google.inject.{Guice, Inject, Injector, Module, Provides}
import scala.beans.BeanProperty

// 定义一个依赖注入的目标类
class UserService {
  @Inject
  @BeanProperty
  var userRepository: UserRepository = _
  
  def getUser(id: Int): User = {
    userRepository.getUser(id)
  }
}

// 定义一个依赖项
trait UserRepository {
  def getUser(id: Int): User
}

// 实现依赖项
class UserRepositoryImpl extends UserRepository {
  def getUser(id: Int): User = {
    // 从数据库或其他数据源获取用户信息
    // ...
    new User(id, "John Doe")
  }
}

// 定义一个用户类
case class User(id: Int, name: String)

// 创建一个依赖注入的模块
class AppModule extends Module {
  def configure(binder: Binder): Unit = {
    binder.bind(classOf[UserRepository]).to(classOf[UserRepositoryImpl])
  }
  
  @Provides
  def provideUserService(userRepository: UserRepository): UserService = {
    val userService = new UserService()
    userService.setUserRepository(userRepository)
    userService
  }
}

// 应用程序入口
object Main extends App {
  val injector: Injector = Guice.createInjector(new AppModule)
  val userService: UserService = injector.getInstance(classOf[UserService])
  
  val user: User = userService.getUser(1)
  println(user)
}