如何在retrofit2中设置参数列表

public interface ApiService {
    @GET("api/user")
    Call<User> getUser(@Query("id") int userId);
}

Retrofit retrofit = new Retrofit.Builder()
    .baseUrl("https://api.example.com/")
    .addConverterFactory(GsonConverterFactory.create())
    .build();

ApiService apiService = retrofit.create(ApiService.class);

Call<User> call = apiService.getUser(123);

call.enqueue(new Callback<User>() {
    @Override
    public void onResponse(Call<User> call, Response<User> response) {
        if (response.isSuccessful()) {
            User user = response.body();
            // 处理响应数据
        } else {
            // 处理错误情况
        }
    }

    @Override
    public void onFailure(Call<User> call, Throwable t) {
        // 处理网络请求失败情况
    }
});