改造入队不起作用,但执行工作

Question

我正在使用com.squareup.retrofit2:retrofit:2.2.0

    HttpLoggingInterceptor logging = new HttpLoggingInterceptor();
    logging.setLevel(HttpLoggingInterceptor.Level.BODY);

    OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
    httpClient.addInterceptor(logging);


    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl("http://localhost:9000")
            .addConverterFactory(GsonConverterFactory.create())
            .client(httpClient.build())
            .build();

    final UserService service = retrofit.create(UserService.class);

    Call<User> userCall = service.createUser(user)

这是问题所在:当我运行execute它时,它会生成REST API请求但是当我使用enqueue它时什么都不做(没有例外,没有日志)

  userCall.execute(); //this work

  //this does not work
  userCall.enqueue(new Callback<User>() {
      @Override
      public void onResponse(Call<User> call, Response<User> response) {
          // no response 
      }

      @Override
      public void onFailure(Call<User> call, Throwable t) {
          //nothing here
      }
  });

Answer 1

好,

问题是因为我正在使用模拟器并尝试调用localhost但是,如果你想调用localhost你必须使用这个ip 10.0.2.2

这项execute工作是因为我作为单元测试运行但是当它运行时enqueue我认为它需要在android平台上运行.

请参阅此 https://developer.android.com/studio/run/emulator.html#networkaddresses

如何获取Android Emulator的IP地址？