Saya ingin mengembangkan aplikasi yang akan mengakses API Google Kalender, antara lain.

Pengguna aplikasi kemudian juga dapat mengakses acara tersebut. Tapi sayangnya saya tidak bisa mendapatkan akses dengan kode saya. Saya juga mengikuti instruksi dari Quickstart Java API Google Kalender .

Ini kode saya:

public class GoogleCalendar {

    private static final String APPLICATION_NAME = "Google Calendar Quickstart";
    private static final JsonFactory JSON_FACTORY = JacksonFactory.getDefaultInstance();
    private static final String TOKENS_DIRECTORY_PATH = "tokens";

    /**
     * Global instance of the scopes required by this quickstart.
     * If modifying these scopes, delete your previously saved saved tokens/ folder.
     */
    private static final List<String> SCOPES = Collections.singletonList(CalendarScopes.CALENDAR_READONLY);
    private static final String CREDENTIALS_FILE_PATH = "/credential.json";

    /**
     * Creates an authorized Credential objects.
     * @param HTTP_TRANSPORT The network HTTP Transport
     * @return An authorized Credential object.
     * @throws IOException If the client_id.jason file cannot be found.
     */
    private static Credential getCredentials(final NetHttpTransport HTTP_TRANSPORT) throws IOException {
        // Load client secrets.
        InputStream in = GoogleCalendar.class.getResourceAsStream(CREDENTIALS_FILE_PATH);
        if (in == null) {
            throw new FileNotFoundException("Resource not found: " + CREDENTIALS_FILE_PATH);
        }
        GoogleClientSecrets clientSecrets = GoogleClientSecrets.load(JSON_FACTORY, new InputStreamReader(in));

        // Build flow and trigger user authorization request.
        GoogleAuthorizationCodeFlow flow = new GoogleAuthorizationCodeFlow.Builder(
                HTTP_TRANSPORT, JSON_FACTORY, clientSecrets, SCOPES)
                .setDataStoreFactory(new FileDataStoreFactory(new java.io.File(TOKENS_DIRECTORY_PATH)))
                .setAccessType("offline")
                .build();
        LocalServerReceiver receiver = new LocalServerReceiver.Builder().setPort(8888).build();
        return new AuthorizationCodeInstalledApp(flow, receiver).authorize("user");
    }

    public static void getAllData() throws GeneralSecurityException, IOException {
        // Build a new authorized API client service.
        final NetHttpTransport HTTP_TRANSPORT = GoogleNetHttpTransport.newTrustedTransport();
        Calendar service = new Calendar.Builder(HTTP_TRANSPORT, JSON_FACTORY, getCredentials(HTTP_TRANSPORT))
                .setApplicationName(APPLICATION_NAME)
                .build();
        // List the next 10 event from the primary calendar.
        DateTime now = new DateTime(System.currentTimeMillis());
        Events events = service.events().list("primary")
                .setMaxResults(10)
                .setTimeMin(now)
                .setOrderBy("startTime")
                .setSingleEvents(true)
                .execute();
        List<Event> items = events.getItems();
        if (items.isEmpty()) {
            System.out.println("No upcoming events found.");
        } else {
            System.out.println("Upcoming events");
            for (Event event : items) {
                DateTime start = event.getStart().getDateTime();
                if (start == null) {
                    start = event.getStart().getDate();
                }
                System.out.printf("%s (%s)\n", events.getSummary(), start);
            }
        }
    }
}

Dan inilah pesan kesalahan saya: java.security.KeyStoreException: JKS not found

Saya memanggil metode get semua data di kelas lain dengan:

try {
    GoogleCalendar.getAllData();
} catch (GeneralSecurityException | IOException e) {
    e.printStackTrace();
}

Jika Anda memiliki pertanyaan tentang informasi yang hilang, beri tahu saya dan saya akan menyampaikan informasinya.

Terima kasih sebelumnya.

API Google Kalender Android mendapatkan kredensial [duplikat]

Jawaban