Android461/app/src/main/java/com/example/mytest/API.java

package com.example.mytest;

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

import java.io.DataInputStream;
import java.net.HttpURLConnection;
import java.net.URL;

public class API extends Thread {

    // адрес запроса
    public String url;
    // параметры, передаваемые с запросом
    public String param;

    public Interface context;

    @Override
    public void run() {

        try {
            URL _url = new URL(url);

            HttpURLConnection connection =
                    (HttpURLConnection) _url.openConnection();

            connection.setRequestMethod("POST");
            connection.setRequestProperty("Content-Type", "application/json");
            connection.setDoOutput(true);
            connection.setDoInput(true);

            connection.getOutputStream().write(param.getBytes());
            connection.getOutputStream().flush();

            connection.connect();

            DataInputStream inputStream =
                    new DataInputStream(connection.getInputStream());
            String response = inputStream.readLine();

            JSONObject json = new JSONObject(response);

            if (json.has("Error")) {
                if (!json.getString("Error").equals("null")) {
                    System.out.println(json.getString("Error"));
                    return;
                }

                if (json.has("News")) {
                    if (!json.getString("News").equals("null")) {
                        JSONArray news = json.getJSONArray("News");

                        context.Main(news);
                    }
                }
            }

        } catch (Exception e) {
            e.printStackTrace();
        }

    }
}