我正试图在androidstudio中使用json为我的应用程序构建一个模拟api，并试图解决如何从json文件中获得一个特定的值？
例如，我想从数组“horoscopes”中获取“horoscope”字符串，其中“sunsign”字符串等于“aries”。
这可能非常简单，但我不太确定从哪里开始。
这是我的json：

"horoscopes": [
    {
      "horoscopeId": 1,
      "sunsign": "aquarius",
      "month": "january",
      "horoscope": "I am the january horoscope for aquarius",
    },
    {
      "horoscopeId": 2,
      "sunsign": "pisces",
      "month": "january",
      "horoscope": "I am the january horoscope for pisces",
    },
    {
      "horoscopeId": 3,
      "sunsign": "aries",
      "month": "january",
      "horoscope": "I am the january horoscope for aries",
    },
    {
      "horoscopeId": 4,
      "sunsign": "taurus",
      "month": "january",
      "horoscope": "I am the january horoscope for taurus",
    },
    {
      "horoscopeId": 5,
      "sunsign": "gemini",
      "month": "january",
      "horoscope": "I am the january horoscope for gemini",
    },
    {
      "horoscopeId": 6,
      "sunsign": "cancer",
      "month": "january",
      "horoscope": "I am the january horoscope for cancer",
    },
    {
      "horoscopeId": 7,
      "sunsign": "leo",
      "month": "january",
      "horoscope": "I am the january horoscope for leo",
    },
    {
      "horoscopeId": 8,
      "sunsign": "virgo",
      "month": "january",
      "horoscope": "I am the january horoscope for virgo",
    },
    {
      "horoscopeId": 9,
      "sunsign": "libra",
      "month": "january",
      "horoscope": "I am the january horoscope for libra",
    },
    {
      "horoscopeId": 10,
      "sunsign": "scorpio",
      "month": "january",
      "horoscope": "I am the january horoscope for scorpio",
    },
    {
      "horoscopeId": 11,
      "sunsign": "sagittarius",
      "month": "january",
      "horoscope": "I am the january horoscope for sagittarius",
    },
    {
      "horoscopeId": 12,
      "sunsign": "capricorn",
      "month": "january",
      "horoscope": "I am the january horoscope for capricorn",
    }
 ]
}

到目前为止，我在连接到json时得到了以下信息：

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;

public class horoscope extends AppCompatActivity {

    ArrayList<String> horoscope_al = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_horoscope);

        try {
            JSONObject obj = new JSONObject(loadJSONFromAsset());
            JSONArray horoscopeArray = obj.getJSONArray("horoscopes");
            for (int i = 0; i < horoscopeArray.length(); i++) {
                JSONObject horoscopeValues = horoscopeArray.getJSONObject(i);
                horoscope_al.add(horoscopeValues.getString("horoscope"));
            }
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    public String loadJSONFromAsset()
    {
        String json_string = null;
        try {
            InputStream inpSt = getAssets().open("horoscope_api.json");
            int s = inpSt.available();
            byte[] buffer_byte = new byte[s];
            inpSt.read(buffer_byte);
            inpSt.close();
            json_string = new String(buffer_byte, "UTF-8");
        } catch (IOException ex) {
            ex.printStackTrace();
            return null;
        }
        return json_string;
    }
}