为什么 weatherstack api 我使用返回 null？

Question

我不明白为什么我的天气堆栈 api 响应 return 在以下代码中为空。请帮忙

这是我的模型数据类:

CurrentWeatherResponse.kt

data class CurrentWeatherResponse(
        val request: Request,
        val location: Location,
        @SerializedName(value = "current")
        val currentWeatherEntry: CurrentWeatherEntry
)

CurrentWeatherEntry.kt

data class CurrentWeatherEntry(
    @SerializedName("observation_time")
    val observationTime: String,
    val temperature: Int,
    @SerializedName("weather_code")
    val weatherCode: Int,
    @SerializedName("weather_icons")
    val weatherIcons: List<String>,
    @SerializedName("weather_descriptions")
    val weatherDescriptions: List<String>,
    @SerializedName("wind_speed")
    val windSpeed: Int,
    @SerializedName("wind_degree")
    val windDegree: Int,
    @SerializedName("wind_dir")
    val windDir: String,
    val pressure: Int,
    val precip: Int,
    val humidity: Int,
    val cloudcover: Int,
    val feelslike: Int,
    @SerializedName("uv_index")
    val uvIndex: Int,
    val visibility: Int,
    @SerializedName("is_day")
    val isDay: String
)

Location.kt

data class Location(
    val name: String,
    val country: String,
    val region: String,
    val lat: String,
    val lon: String,
    @SerializedName("timezone_id")
    val timezoneId: String,
    val localtime: String,
    @SerializedName("localtime_epoch")
    val localtimeEpoch: Int,
    @SerializedName("utc_offset")
    val utcOffset: String
)

Request.kt

data class Request(
    val type: String,
    val query: String,
    val language: String,
    val unit: String
)

这是我的 WeatherStack API 服务代码：

WeatherStackApiService.kt

const val API_KEY= "04246030f0fc7b1efe5a28d1c1724b1e"

//http://api.weatherstack.com/current?access_key=04246030f0fc7b1efe5a28d1c1724b1e&query=New%20York

interface WeatherStackApiService {

    @GET(value = "current")
    fun getCurrentWeatherAsync(
            @Query(value = "query") location: String
         //   @Query(value = "language") languageCode :String = "en"
    ): Deferred<CurrentWeatherResponse>

    companion object {
        operator fun invoke(): WeatherStackApiService
        {
            val requestInterceptor = Interceptor { chain ->
                val url = chain.request()
                        .url()
                        .newBuilder()
                        .addQueryParameter("key", API_KEY)
                        .build()
                val request = chain.request()
                        .newBuilder()
                        .url(url)
                        .build()
                return@Interceptor chain.proceed(request)
            }
            val okHttpClient = OkHttpClient.Builder()
                    .addInterceptor(requestInterceptor)
                    .build()

            return Retrofit.Builder()
                    .client(okHttpClient)
                    .baseUrl("http://api.weatherstack.com/")
                    .addCallAdapterFactory(CoroutineCallAdapterFactory())
                    .addConverterFactory(GsonConverterFactory.create())
                    .build()
                    .create(WeatherStackApiService::class.java)
        }
    }

}

这是显示该地点天气响应的 CurrentWeatherFragment 文件：

CurrentWeatherFragment.kt

class CurrentWeatherFragment : Fragment() {

    companion object{
        fun newInstance() = CurrentWeatherFragment()
    }

    private lateinit var currentWeatherViewModel: CurrentWeatherViewModel

    override fun onCreateView(
            inflater: LayoutInflater,
            container: ViewGroup?,
            savedInstanceState: Bundle?
    ): View? {

        currentWeatherViewModel =
                ViewModelProvider(this).get(CurrentWeatherViewModel::class.java)

        val root = inflater.inflate(R.layout.fragment_home, container, false)
        val textView: TextView = root.findViewById(R.id.text_home)
        val apiService = WeatherStackApiService()

        GlobalScope.launch(Dispatchers.Main) {
            val currentWeatherResponse = apiService.getCurrentWeatherAsync("London").await()
            textView.text = currentWeatherResponse.toString()
        }
        return root
    }

}

这是我们运行该应用程序时的输出： Output ScreenShot of the app

注：我还向您提到的一件事是我正在使用 weatherstack API 的免费计划，它不允许我使用 https 订阅，所以我使用 http..... Https error

Answer 1

主要有两点需要更改，您发送 API 密钥的密钥是错误的。它应该是 access_key 而不是 key

val url = chain.request()
                        .url()
                        .newBuilder()
                        .addQueryParameter("access_key", API_KEY)
                        .build()

其次，正如我所说，您的数据模型有点不对。所以你可以再确认一下。特别是将 precip 更改为 Double

为什么 weatherstack api 我使用返回 null？

why weatherstack api I used returning null?

android

mvvm

kotlin

weatherstack