android - 如何从android中的JSON中的嵌套数组中获取数据？

Question

protected Void doInBackground(Void...arg0) { HttpHandler sh = new HttpHandler();

        // Making a request to url and getting response
        String jsonStr = sh.makeServiceCall(url);

        Log.e(TAG, "Response from url: " + jsonStr);

        if (jsonStr != null) {
            try {
                JSONObject jsonObj = new JSONObject(jsonStr);


                JSONArray array = jsonObj.getJSONArray("list");

                for (int i = 0; i < array.length(); i++) {
                    JSONObject child = array.getJSONObject(i);
                    String name = child.getString("name");

                    JSONObject coord = child.getJSONObject("coord");
                    String lat = coord.getString("lat");
                    String lon = coord.getString("lon");

                    JSONObject main = child.getJSONObject("main");
                    String temp = main.getString("temp");

                    JSONObject clouds = child.getJSONObject("clouds");
                    String cl = clouds.getString("all");

                    JSONObject des = child.getJSONObject("weather");
                    String de = des.getString("description");
                    
                    HashMap<String, String> weather = new HashMap<>();

                    weather.put("name", name);
                    weather.put("temp", temp);
                    weather.put("cl", cl);
                    weather.put("lat", lat);
                    weather.put("lon", lon);
                    weather.put("des", de);

                    WeatherList.add(weather);
                }
            } catch (final JSONException e) {
                Log.e(TAG, "Json parsing error: " + e.getMessage());
                runOnUiThread(() -> Toast.makeText(getApplicationContext(), "Json parsing error: " + e.getMessage(), Toast.LENGTH_LONG).show());

            }
        } else {
            Log.e(TAG, "Couldn't get json from server.");
            runOnUiThread(() -> Toast.makeText(getApplicationContext(),
                    "Couldn't get json from server. Check LogCat for possible errors!", Toast.LENGTH_LONG).show());

        }

        return null;
    }

这是我的 JSON 数据我如何从天气数组中获取“描述”数据？

{
  "list": [
    {
      "id": 1270077,
      "name": "Hinganghāt",
      "coord": {
        "lat": 20.5667,
        "lon": 78.8333
      },
      "main": {
        "temp": 304.82,
        "feels_like": 308.91,
        "temp_min": 304.82,
        "temp_max": 304.82,
        "pressure": 1000,
        "humidity": 58,
        "sea_level": 1000,
        "grnd_level": 977
      },
      "dt": 1626242961,
      "wind": {
        "speed": 3.75,
        "deg": 91
      },
      "sys": {
        "country": "IN"
      },
      "rain": null,
      "snow": null,
      "clouds": {
        "all": 65
      },
      "weather": [
        {
          "id": 803,
          "main": "Clouds",
          "description": "broken clouds",
          "icon": "04d"
        }
      ]
    },
    {
      "id": 1256206,
      "name": "Sindi",
      "coord": {
        "lat": 20.8,
        "lon": 78.8667
      },
      "main": {
        "temp": 304.64,
        "feels_like": 308.26,
        "temp_min": 304.64,
        "temp_max": 304.64,
        "pressure": 1000,
        "humidity": 57,
        "sea_level": 1000,
        "grnd_level": 974
      },
      "dt": 1626242995,
      "wind": {
        "speed": 4.02,
        "deg": 92
      },
      "sys": {
        "country": "IN"
      },
      "rain": null,
      "snow": null,
      "clouds": {
        "all": 54
      },
      "weather": [
        {
          "id": 803,
          "main": "Clouds",
          "description": "broken clouds",
          "icon": "04d"
        }
      ]
    }
  ]
}

标签： android