从 newsapi 获取数据

Question

I'm trying to get news API from https://newsapi.org . on IntelliJ when I call: httpURLConnection.setRequestMethod("GET"); I get response and its working but on the androidstudio when I call the method I get this error: java.io.FileNotFoundException: https://newsapi.org

here is the full code:

`  try {
        URL url = new URL("https://newsapi.org");
        HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
        httpURLConnection.setRequestMethod("GET");
        httpURLConnection.connect();

        InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream());
        BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
        String s = bufferedReader.readLine();
        StringBuilder stringBuilder = new StringBuilder();

        while (s != null) {
            stringBuilder.append(s);
            s = bufferedReader.readLine();
        }

        System.out.println(stringBuilder.toString());

    } catch (IOException e) {
        e.printStackTrace();
    }  `

here is the full code:

public class MainActivity extends AppCompatActivity {

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

    mA m = new mA();
    m.execute();
}

class mA extends AsyncTask<Void, Void, Void> {

    @Override
    protected Void doInBackground(Void... voids) {

        try {
            URL url = new URL("https://newsapi.org/v2/top-headlines?q=Apple&from=2022-08-31&sortBy=popularity&apiKey=648805f67bdb4aa6a454d4f6480ae35d");
            HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
            httpURLConnection.setRequestMethod("GET");
            httpURLConnection.connect();

            InputStreamReader inputStreamReader = new InputStreamReader(httpURLConnection.getInputStream());
            BufferedReader bufferedReader = new BufferedReader(inputStreamReader);
            String s = bufferedReader.readLine();
            StringBuilder stringBuilder = new StringBuilder();

            while (s != null) {
                stringBuilder.append(s);
                s = bufferedReader.readLine();
            }

            JSONObject jsonObject = new JSONObject(stringBuilder.toString());
            JSONArray jsonArray = jsonObject.getJSONArray("articles");
            JSONObject jsonObject1 = jsonArray.getJSONObject(0);
            String sss = jsonObject1.getString("title");


            System.out.println(stringBuilder.toString());

        } catch (MalformedURLException e) {


        } catch (IOException | JSONException e) {
            e.printStackTrace();
        }


        return null;
    }
}

}

and the log: 2022-09-02 03:11:15.329 21717-21758/th.o.th.newstest02 I/AdrenoGLES: Build Config: SL 8.0.11 AArch64 2022-09-02 03:11:15.375 21717-21758/th.o.th.newstest02 I/AdrenoGLES: PFP: 0x005ff112, ME: 0x005ff066 2022-09-02 03:11:15.386 21717-21758/th.o.th.newstest02 W/AdrenoUtils: <ReadGpuID_from_sysfs:194>: Failed to open /sys/class/kgsl/kgsl-3d0/gpu_model 2022-09-02 03:11:15.386 21717-21758/th.o.th.newstest02 W/AdrenoUtils: ReadGpuID:218: Failed to read chip ID from gpu_model. Fallback to use the GSL path 2022-09-02 03:11:15.375 21717-21717/th.o.th.newstest02 W/RenderThread: type=1400 audit(0.0:12012): avc: denied { search } for name="kgsl-3d0" dev="sysfs" ino=29187 scontext=u:r:untrusted_app:s0:c88,c257,c512,c768 tcontext=u:object_r:sysfs_kgsl:s0 tclass=dir permissive=0 2022-09-02 03:11:15.436 21717-21758/th.o.th.newstest02 W/Gralloc3: mapper 3.x is not supported 2022-09-02 03:11:22.310 21717-21762/th.o.th.newstest02 W/System.err: java.io.FileNotFoundException: https://newsapi.org/v2/top-headlines?q=Apple&from=2022-08-31&sortBy=popularity&apiKey=648805f67bdb4aa6a454d4f6480ae35d 2022-09-02 03:11:22.311 21717-21762/th.o.th.newstest02 W/System.err: at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:255) 2 022-09-02 03:11:22.311 21717-21762/th.o.th.newstest02 W/System.err: at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:211) 2022-09-02 03:11:22.312 21717-21762/th.o.th.newstest02 W/System.err: at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:30) 2022-09-02 03:11:22.312 21717-21762/th.o.th.newstest02 W/System.err: at th.o.th.newstest02.MainActivity$mA.doInBackground(MainActivity.java:41) 2022-09-02 03:11:22.313 21717-21762/th.o.th.newstest02 W/System.err: at th.o.th.newstest02.MainActivity$mA.doInBackground(MainActivity.java:30) 2022-09-02 03:11:22.313 21717-21762/th.o.th.newstest02 W/System.err: at android.os.AsyncT ask$3.call(AsyncTask.java:378) 2022-09-02 03:11:22.313 21717-21762/th.o.th.newstest02 W/System.err: at java.util.concurrent.FutureTask.run(FutureTask.java:266) 2022-09-02 03:11:22.313 21717-21762/th.o.th.newstest02 W/System.err: at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:289) 2022-09-02 03:11:22.314 21717-21762/th.o.th.newstest02 W/System.err: at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 2022-09-02 03:11:22.314 21717-21762/th.o.th.newstest02 W/System.err: at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 2022-09-02 03:11:22.314 21717-21762/th.o.th.newstest02 W/System.err: at java.lang.Thread.run(Thread.Z93F7 25A07423FE1C889F448B33D21F46Z:919) 2022-09-02 03:13:17.211 21717-21732/th.o.th.newstest02 W/System: A resource failed to call end.

Answer 1

By calling the base URL ( https://newsapi.org ) with the GET method you will fetch the website content in HTML. It's just like opening the URL in your browser.

According to the Documentation , you should first get an API key to be able to send requests and fetch the news. Aside from this, you should use the correct API address mentioned here .