如何寫在給定的JSON響應

我有一個JSON響應改造2.0響應類，需要創建一個能夠捕獲響應領域的一類，這樣我可以在我的應用程序如何寫在給定的JSON響應

這是JSON響應使用它：

{ 
    "coord": { 
    "lon": 24.44, 
    "lat": 60.12 
    }, 
    "weather": [ 
    { 
     "id": 800, 
     "main": "Clear", 
     "description": "clear sky", 
     "icon": "01d" 
    } 
    ], 
    "base": "stations", 
    "main": { 
    "temp": 290.15, 
    "pressure": 1006, 
    "humidity": 42, 
    "temp_min": 290.15, 
    "temp_max": 290.15 
    }, 
    "visibility": 10000, 
    "wind": { 
    "speed": 7.2, 
    "deg": 330 
    }, 
    "clouds": { 
    "all": 0 
    }, 
    "dt": 1497432000, 
    "sys": { 
    "type": 1, 
    "id": 5019, 
    "message": 0.0028, 
    "country": "FI", 
    "sunrise": 1497401838, 
    "sunset": 1497469706 
    }, 
    "id": 649630, 
    "name": "Kirkkonummi", 
    "cod": 200 
}

這是響應類我已經寫入改型2.0使用：

package pojo; 

import com.google.gson.annotations.Expose; 
import com.google.gson.annotations.SerializedName; 


public class ResultObject<T> { 

    @Expose 
    @SerializedName("name") 
    public String name; 


    @Expose 
    @SerializedName("id") 
    public int id; 

    @Expose 
    @SerializedName("cod") 
    public int cod; 


    @Expose 
    @SerializedName("dt") 
    public long dt; 

    @Expose 
    @SerializedName("visibility") 
    public int visibility; 

    @Expose 
    @SerializedName("base") 
    public String base; 

    @Expose 
    @SerializedName("main") 
    public T main; 

    public T getMain() { 
     return main; 
    } 

    @Expose 
    @SerializedName("weather") 
    public Weather weather; 

    public class Weather{ 

     @Expose 
     @SerializedName("description") 
     public String description; 

     public String getDescription() { 
      return description; 
     } 

     public void setDescription(String description) { 
      this.description = description; 
     } 
    } 

    public Weather getWeather() { 
     return weather; 
    } 

}

此所述Main類（對於ResultObject<T>模板類）：

package pojo; 

import com.google.gson.annotations.Expose; 
import com.google.gson.annotations.SerializedName; 


public class Main { 

    @Expose 
    @SerializedName("temp") 
    public int temp; 

    @Expose 
    @SerializedName("pressure") 
    public int pressure; 

    @Expose 
    @SerializedName("humidity") 
    public int humidity; 

    @Expose 
    @SerializedName("temp_min") 
    public int temp_min; 

    @Expose 
    @SerializedName("temp_max") 
    public int temp_max; 

    public int getTemp() { 
     return temp; 
    } 


    public int getPressure() { 
     return pressure; 
    } 


    public int getHumidity() { 
     return humidity; 
    } 


    public int getTemp_min() { 
     return temp_min; 
    } 


    public int getTemp_max() { 
     return temp_max; 
    } 


}

這是API調用：

mApi = new RetrofitHelper<AuthApi>().getApi(AuthApi.class); 

     currentCall = mApi.currentData(lat,lon,units,key); 

     currentCall.enqueue(new Callback<ResultObject<Main>>() { 
      @Override 
      public void onResponse(Call<ResultObject<Main>> call, 
            Response<ResultObject<Main>> response) { 

       Log.d("enter","enter"); 
       //Log.d("temp",new Integer(response.body().getMain().getTemp()).toString()); 
       mData=response.body(); 
       temp_current.setText(mData.getMain().getTemp()); 
       status_current.setText(mData.getWeather().getDescription()); 


       pd.hide(); 
      } 

      @Override 
      public void onFailure(Call<ResultObject<Main>> call, Throwable t) { 
       Log.d("enterf","Log.getStackTraceString(new Exception())"); 
       pd.hide(); 

      } 
     });

我登錄那個總是出現在指OnFailure方法被調用總是（我不知道爲什麼）的logcat中的string(enterf)。

這是logcat的：

06-14 16:55:47.052 17452-17650/com.example.kethan.weatherapp D/OkHttp: --> GET http://api.openweathermap.org/data/2.5/weather?lat=19.1334302&lon=72.9132679&units=metric&APPID=dcae12cb0488a2a684320828b6e1acc3 HTTP/1.1 
06-14 16:55:47.052 17452-17650/com.example.kethan.weatherapp D/OkHttp: --> END GET 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: <-- 200 OK http://api.openweathermap.org/data/2.5/weather?lat=19.1334302&lon=72.9132679&units=metric&APPID=dcae12cb0488a2a684320828b6e1acc3 (329ms) 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Server: openresty 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Date: Wed, 14 Jun 2017 11:25:48 GMT 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Content-Type: application/json; charset=utf-8 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Content-Length: 438 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: X-Cache-Key: /data/2.5/weather?APPID=dcae12cb0488a2a684320828b6e1acc3&lat=19.13&lon=72.91&units=metric 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Access-Control-Allow-Origin: * 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Access-Control-Allow-Credentials: true 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Access-Control-Allow-Methods: GET, POST 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: X-Cache: MISS from nm11.iitb.ac.in 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: X-Cache-Lookup: MISS from nm11.iitb.ac.in:80 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Via: 1.1 nm11.iitb.ac.in (squid/3.3.9) 
06-14 16:55:47.382 17452-17650/com.example.kethan.weatherapp D/OkHttp: Connection: close 
06-14 16:55:47.383 17452-17650/com.example.kethan.weatherapp D/OkHttp: OkHttp-Sent-Millis: 1497439547129 
06-14 16:55:47.383 17452-17650/com.example.kethan.weatherapp D/OkHttp: OkHttp-Received-Millis: 1497439547379 
06-14 16:55:47.384 17452-17650/com.example.kethan.weatherapp D/OkHttp: {"coord":{"lon":72.91,"lat":19.13},"weather":[{"id":802,"main":"Clouds","description":"scattered clouds","icon":"03d"}],"base":"stations","main":{"temp":34,"pressure":1005,"humidity":71,"temp_min":34,"temp_max":34},"visibility":6000,"wind":{"speed":5.7,"deg":260},"clouds":{"all":40},"dt":1497436200,"sys":{"type":1,"id":7770,"message":0.0024,"country":"IN","sunrise":1497400227,"sunset":1497448024},"id":6324621,"name":"Powai","cod":200} 
06-14 16:55:47.385 17452-17650/com.example.kethan.weatherapp D/OkHttp: <-- END HTTP (438-byte body) 
06-14 16:55:47.400 17452-17452/com.example.kethan.weatherapp D/enterf: java.lang.Exception 
    at fragments.Home$1.onFailure(Home.java:99) 
    at retrofit2.ExecutorCallAdapterFactory$ExecutorCallbackCall$1$2.run(ExecutorCallAdapterFactory.java:75) 
    at android.os.Handler.handleCallback(Handler.java:739) 
    at android.os.Handler.dispatchMessage(Handler.java:95) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5441) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:738) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:628)

這是我如何使用改裝2.0：

package helper; 

import okhttp3.OkHttpClient; 
import okhttp3.logging.HttpLoggingInterceptor; 
import retrofit2.Retrofit; 
import retrofit2.converter.gson.GsonConverterFactory; 


public class RetrofitHelper<T> { 

    public T getApi(Class<T> tClass){ 
     return getApi(tClass, QuickPreferences.BASE_URL); 
    } 

    public T getApi(Class<T> tClass, String URL){ 
     HttpLoggingInterceptor logging = new HttpLoggingInterceptor(); 
     logging.setLevel(HttpLoggingInterceptor.Level.BODY); 

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

     httpClient.addInterceptor(logging); 

     Retrofit retrofit = new Retrofit.Builder() 
       .baseUrl(URL) 
       .client(httpClient.build()) 
       .addConverterFactory(GsonConverterFactory.create()) 
       .build(); 
     return retrofit.create(tClass); 
    } 
}

來源

2017-06-14 Kethan Chauhan

嘗試打印日誌跟蹤那裏，例如：t.printStackTrace（）;並在您的問題中添加這個 –

您是否將Gson Converter添加到您的客戶端？ –

@RakshitNawani我已經使用這個（Log.getStackTraceString（new Exception（）））和更新爲你所說的（看到） –

使用下面的網站，你可以創建響應類： Convert json to java Object

來源

2017-06-14 11:37:31

謝謝，這有助於很多 –

如果它的工作原理你，你能把它標記爲正確的答案嗎？ –

如何寫在給定的JSON響應

回答

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