從 newsapi 獲取數據

Question

我正在嘗試從https://newsapi.org 獲取新聞 API 。 當我打電話時在 IntelliJ 上：httpURLConnection.setRequestMethod("GET"); 我得到響應及其工作，但是當我調用該方法時在 androidstudio 上出現此錯誤：java.io.FileNotFoundException: Z5E056C500A1C4B6A7110B50D807BADE5.

這是完整的代碼：

`  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();
    }  `

這是完整的代碼：

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;
    }
}

}

和日志：2022-09-02 03:11:15.329 21717-21758/th.o.th.newstest02 I/AdrenoGLES：構建配置：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>:無法打開 /sys/class/kgsl/kgsl-3d0/gpu_model 2022-09-02 03:11:15.386 21717-21758/th.o.th.newstest02 W/AdrenoUtils: ReadGpuID:218: 無法從gpu_model。 回退到使用 GSL 路徑 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 permissive2=0 2022-09- 03:11:15.436 21717-21758/th.o.th.newstest02 W/Gralloc3：不支持映射器 3.x 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：在 com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.Z93F725A02448B533FE1C889ZF： 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: 在 th.o.th.newstest02.MainActivity$mA.doInBackground(MainActivity.java:41) 2022-09-02 03 :11:22.313 21717-21762/th.o.th.newstest02 W/System.err: 在 th.o.th.newstest02.MainActivity$mA.doInBackground(MainActivity.java:30) 2022-09-02 03:11 :22.313 21717-21762/th.o.th.newstest02 W/System.err: 在 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：在 java.lang.Thread.run(Thread.Z93F7 25A07423FE1C889F448B33D21F46Z:919) 2022-09-02 03:13:17.211 21717-21732/th.o.th.newstest02 W/系統：資源調用結束失敗。

Answer 1

通過使用GET方法調用基本 URL ( https://newsapi.org )，您將獲取 HTML 中的網站內容。 就像在瀏覽器中打開 URL 一樣。

根據文檔，您應該首先獲得一個 API 密鑰，以便能夠發送請求並獲取新聞。 除此之外，您應該使用此處提到的正確 API 地址。