Question

我试图了解改造是如何工作的，但每次我的回复都失败了我甚至使用了GitHub API，但我的回复仍然失败了，我做错了什么我很困惑

链接

http://api.openweathermap.org/data/2.5/weather?q=Spakane,Us&appid=api_key

接口类

 @GET("data/2.5/weather")
 Call<List<Weather>> getWeatherData(@Query("q") String cityName,@Query("appid") String apikey);

MainActivity

private final String BASE_URL = "http://api.openweathermap.org/";

Retrofit retrofit = new Retrofit.Builder()
                .baseUrl(BASE_URL)
                .addConverterFactory(GsonConverterFactory.create())
                .build();

        RestApi api = retrofit.create(RestApi.class);


        final Call<List<Weather>> weather = api.getWeatherData("rawalpindi",API_KEY);

        final ProgressDialog pg = new ProgressDialog(this);
        pg.setTitle("Downloading");
        pg.setMessage("Please Wait .....");
        pg.show();

        weather.enqueue(new Callback<List<Weather>>() {
            @Override
            public void onResponse(Call<List<Weather>> call, Response<List<Weather>> response) {

                pg.dismiss();

                Log.d(TAG, "onResponse: "+response.isSuccessful());

                Log.d(TAG, "onResponse: "+response.body().get(0).getClouds());

            }

            @Override
            public void onFailure(Call<List<Weather>> call, Throwable t) {

                Log.d(TAG, "onFailure: Failed :(");
                Log.d(TAG, "onResponseFailed: "+call.request().url());
                pg.dismiss();
            }
        });

日志

D/MainActivity: onFailure: Failed :(
D/MainActivity: onResponseFailed: http://api.openweathermap.org/data/2.5/weather?q=rawalpindi&appid=api_key

抛出消息

Expected BEGIN_ARRAY but was BEGIN_OBJECT at line 1 column 2 path $

Answer 1

你的答案不是一个清单，只是一个对象。使用拦截器查看回复。

作为示例，来自Call<List<Weather>>，您应该只使用Call<Weather>。

Answer 2

print throwable error，例如“Log.e（TAG，”NET_ERROR：“+ t.toString（））;”。这可能是网络问题。

改造响应失败

2 个答案: