Example usage for java.net HttpURLConnection connect

Introduction

In this page you can find the example usage for java.net HttpURLConnection connect.

Prototype

public abstract void connect() throws IOException;

Source Link

Document

Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.

Usage

From source file:com.joyent.manta.client.MantaClientSigningIT.java

@Test
public final void testCanCreateSignedURIWithEncodedCharacters() throws IOException {
    final String path = testPathPrefix + " quack ";

    mantaClient.put(path, TEST_DATA, UTF_8);
    Assert.assertEquals(mantaClient.getAsString(path), TEST_DATA);

    final URI uri = mantaClient.getAsSignedURI(path, "GET", Instant.now().plus(Duration.ofHours(1)));
    final HttpURLConnection conn = (HttpURLConnection) uri.toURL().openConnection();

    try (final InputStream is = conn.getInputStream()) {
        conn.setReadTimeout(3000);// w ww.  ja  v a2s .c  o  m
        conn.connect();

        Assert.assertEquals(conn.getResponseCode(), HttpStatus.SC_OK);
        Assert.assertEquals(IOUtils.toString(is, UTF_8), TEST_DATA);
    } finally {
        conn.disconnect();
    }
}

---

From source file:it.telecomitalia.my.base_struct_apps.VersionUpdate.java

@Override
protected Void doInBackground(String... urls) {
    /* metodo principale per aggiornamento */
    String xml = "";
    try {/*from   w  w w .ja v a  2s.  com*/
        /* tento di leggermi il file XML remoto */
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpGet httpGet = new HttpGet(SERVER + PATH + VERSIONFILE);
        HttpResponse httpResponse = httpClient.execute(httpGet);
        HttpEntity httpEntity = httpResponse.getEntity();
        xml = EntityUtils.toString(httpEntity);
        /* ora in xml c' il codice della pagina degli aggiornamenti */
    } catch (IOException e) {
        e.printStackTrace();
    }
    // TODO: org.apache.http.conn.HttpHostConnectException ovvero host non raggiungibile
    try {
        /* nella variabile xml, c' il codice della pagina remota per gli aggiornamenti.
        * Per le mie esigenze, prendo dall'xml l'attributo value per vedere a che versione  la
        * applicazione sul server.*/
        DocumentBuilder db = DocumentBuilderFactory.newInstance().newDocumentBuilder();
        // http://stackoverflow.com/questions/1706493/java-net-malformedurlexception-no-protocol
        InputStream is = new ByteArrayInputStream(xml.getBytes("UTF-8"));
        Document dom = db.parse(is);
        Element element = dom.getDocumentElement();
        Element current = (Element) element.getElementsByTagName("current").item(0);
        currentVersion = current.getAttribute("value");
        currentApkName = current.getAttribute("apk");
    } catch (Exception e) {
        e.printStackTrace();
    }
    /* con il costruttore ho stabilito quale versione sta girando sul terminale, e con questi
    * due try, mi son letto XML remoto e preso la versione disponibile sul server e il relativo
    * nome dell'apk, caso ai dovesse servirmi. Ora li confronto e decido che fare */
    if (currentVersion != null & runningVersion != null) {
        /* esistono, li trasformo in double */
        Double serverVersion = Double.parseDouble(currentVersion);
        Double localVersion = Double.parseDouble(runningVersion);
        /* La versione server  superiore alla mia ! Occorre aggiornare */
        if (serverVersion > localVersion) {
            try {
                /* connessione al server */
                URL urlAPK = new URL(SERVER + PATH + currentApkName);
                HttpURLConnection con = (HttpURLConnection) urlAPK.openConnection();
                con.setRequestMethod("GET");
                con.setDoOutput(true);
                con.connect();
                // qual' la tua directory di sistema Download ?
                File downloadPath = Environment
                        .getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
                File outputFile = new File(downloadPath, currentApkName);
                //Log.i("test", downloadPath.getAbsolutePath());
                //Log.i("test", outputFile.getAbsolutePath());
                // se esistono download parziali o vecchi, li elimino.
                if (outputFile.exists())
                    outputFile.delete();
                /* mi creo due File Stream uno di input, quello che sto scaricando dal server,
                * e l'altro di output, quello che sto creando nella directory Download*/
                InputStream input = con.getInputStream();
                FileOutputStream output = new FileOutputStream(outputFile);
                byte[] buffer = new byte[1024];
                int count = 0;
                while ((count = input.read(buffer)) != -1) {
                    output.write(buffer, 0, count);
                }
                output.close();
                input.close();
                /* una volta terminato il processo, attraverso un intent lancio il file che ho
                * appena scaricato in modo da installare immediatamente l'aggiornamento come
                * specificato qui
                * http://stackoverflow.com/questions/4967669/android-install-apk-programmatically*/
                Intent intent = new Intent(Intent.ACTION_VIEW);
                intent.setDataAndType(Uri.fromFile(new File(outputFile.getAbsolutePath())),
                        "application/vnd.android.package-archive");
                intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                context.startActivity(intent);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }
    return null;
}

---

From source file:id.nci.stm_9.HkpKeyServer.java

private String query(String request) throws QueryException, HttpError {
    InetAddress ips[];/*from   ww w. java2 s  .  c o m*/
    try {
        ips = InetAddress.getAllByName(mHost);
    } catch (UnknownHostException e) {
        throw new QueryException(e.toString());
    }
    for (int i = 0; i < ips.length; ++i) {
        try {
            String url = "http://" + ips[i].getHostAddress() + ":" + mPort + request;
            URL realUrl = new URL(url);
            HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
            conn.setConnectTimeout(5000);
            conn.setReadTimeout(25000);
            conn.connect();
            int response = conn.getResponseCode();
            if (response >= 200 && response < 300) {
                return readAll(conn.getInputStream(), conn.getContentEncoding());
            } else {
                String data = readAll(conn.getErrorStream(), conn.getContentEncoding());
                throw new HttpError(response, data);
            }
        } catch (MalformedURLException e) {
            // nothing to do, try next IP
        } catch (IOException e) {
            // nothing to do, try next IP
        }
    }

    throw new QueryException("querying server(s) for '" + mHost + "' failed");
}

---

From source file:io.mesosphere.mesos.frameworks.cassandra.scheduler.api.AbstractApiControllerTest.java

@NotNull
protected Tuple2<Integer, JsonNode> fetchJson(final String rel, final boolean post) throws Exception {
    final JsonFactory factory = new JsonFactory();
    final HttpURLConnection conn = (HttpURLConnection) resolve(rel).toURL().openConnection();
    try {//from   w w  w . ja  v  a  2  s. c o  m
        conn.setRequestMethod(post ? "POST" : "GET");
        conn.setRequestProperty("Accept", "application/json");
        conn.connect();

        final int responseCode = conn.getResponseCode();

        InputStream in;
        try {
            in = conn.getInputStream();
        } catch (final IOException e) {
            in = conn.getErrorStream();
        }
        if (in == null) {
            return Tuple2.tuple2(responseCode, (JsonNode) MissingNode.getInstance());
        }

        assertEquals("application/json", conn.getHeaderField("Content-Type"));

        try {
            final ObjectMapper om = new ObjectMapper();
            return Tuple2.tuple2(responseCode, om.reader().with(factory).readTree(in));
        } finally {
            in.close();
        }
    } finally {
        conn.disconnect();
    }
}

---

From source file:com.baidu.jprotobuf.rpc.client.HttpRPCServerTest.java

protected void testIDLClientQuery(String inputIDL, String outputIDL) throws Exception {
    HttpURLConnection connection = (HttpURLConnection) new URL(
            "http://localhost:8080/SimpleIDLTest?" + ServiceExporter.INPUT_IDL_PARAMETER + "=aa")
                    .openConnection();// w ww . j  av  a  2  s  .  c o m
    connection.connect();
    byte[] readResponse = readResponse(connection);

    Assert.assertEquals(inputIDL, new String(readResponse));

    connection = (HttpURLConnection) new URL(
            "http://localhost:8080/SimpleIDLTest?" + ServiceExporter.OUTPUT_IDL_PARAMETER + "=aa")
                    .openConnection();
    connection.connect();
    readResponse = readResponse(connection);

    Assert.assertEquals(outputIDL, new String(readResponse));
}

---

From source file:org.ednovo.goorusearchwidget.WebService.java

public InputStream getHttpStream(String urlString) throws IOException {
    InputStream in = null;//from   w w w  .  jav a 2 s .  co  m
    int response = -1;
    URL url = new URL(urlString);
    URLConnection conn = url.openConnection();
    if (!(conn instanceof HttpURLConnection))
        throw new IOException("Not an HTTP connection");

    try {
        HttpURLConnection httpConn = (HttpURLConnection) conn;
        httpConn.setAllowUserInteraction(false);
        httpConn.setInstanceFollowRedirects(true);
        httpConn.setRequestMethod("GET");
        httpConn.connect();
        response = httpConn.getResponseCode();
        Log.i("Response code :", "" + response);
        if (response == HttpURLConnection.HTTP_OK) {
            in = httpConn.getInputStream();
        }
    } catch (Exception e) {
        throw new IOException("Error connecting");
    } // end try-catch
    return in;
}

---

From source file:com.jug6ernaut.android.utilites.FileDownloader.java

public File downloadFile(File serverFile, File outputFile) throws IOException {
    long total = 0;
    long progress = 0;
    status = 0;//from ww w .  ja v  a 2s . c  om

    String stringURL = serverFile.getPath();

    //fix url as File removes //
    if (stringURL.startsWith("http:/") && !stringURL.startsWith("http://"))
        stringURL = stringURL.replace("http:/", "http://");
    if (stringURL.startsWith("https:/") && !stringURL.startsWith("https://"))
        stringURL = stringURL.replace("https:/", "https://");

    try {
        URL url = new URL(stringURL);
        HttpURLConnection c = (HttpURLConnection) url.openConnection();
        c.setRequestMethod("GET");
        c.setDoOutput(true);
        c.connect();

        File dir = outputFile.getParentFile();
        dir.mkdirs();

        FileOutputStream fos = new FileOutputStream(outputFile);
        total = c.getContentLength();
        startTalker(total);
        InputStream is = c.getInputStream();

        byte[] buffer = new byte[1024];
        int len1 = 0;
        while ((len1 = is.read(buffer)) != -1) {
            fos.write(buffer, 0, len1);
            progressTalker(len1);
            progress += len1;
        }
        finishTalker(progress);
        fos.close();
        is.close();
    } catch (Exception e) {
        cancelTalker(e);
        e.printStackTrace();
        status = STATUS_FAILED;
        return null;
    }

    if (total == progress)
        status = STATUS_SUCCESS;
    else
        status = STATUS_FAILED;

    return outputFile;
}

---

From source file:com.joyent.manta.client.MantaClientSigningIT.java

@Test
public final void testCanCreateSignedGETUriFromPath() throws IOException {
    if (config.isClientEncryptionEnabled()) {
        throw new SkipException("Signed URLs are not decrypted by the client");
    }//from  w w w  . ja  v a  2s  . c om

    final String name = UUID.randomUUID().toString();
    final String path = testPathPrefix + name;

    mantaClient.put(path, TEST_DATA);

    // This will throw an error if the newly inserted object isn't present
    mantaClient.head(path);

    Instant expires = Instant.now().plus(1, ChronoUnit.HOURS);
    URI uri = mantaClient.getAsSignedURI(path, "GET", expires);

    HttpURLConnection connection = (HttpURLConnection) uri.toURL().openConnection();

    try (InputStream is = connection.getInputStream()) {
        connection.setReadTimeout(3000);
        connection.connect();

        if (connection.getResponseCode() != 200) {
            Assert.fail(IOUtils.toString(connection.getErrorStream(), Charset.defaultCharset()));
        }

        String actual = IOUtils.toString(is, Charset.defaultCharset());

        Assert.assertEquals(actual, TEST_DATA);
    } finally {
        connection.disconnect();
    }
}

---

From source file:com.huixueyun.tifenwang.api.net.HttpEngine.java

/**
 * http urlconnection?/*from w w w . j av a  2s  .com*/
 *
 * @param paramsMap ??
 * @param model     ?
 * @param paramUrl  ??
 * @param type      ?
 * @param <T>
 * @return ApiResponse?
 * @throws IOException
 */
public <T> T postConnectionHandle(Map<String, String> paramsMap, String model, String paramUrl, String type)
        throws IOException {
    String data = joinParams(paramsMap, type);
    // ?
    L.e(data);
    HttpURLConnection connection = getConnection(paramUrl);
    connection.setRequestProperty("Content-Length", String.valueOf(data.getBytes().length));
    connection.connect();
    OutputStream os = connection.getOutputStream();
    os.write(data.getBytes());
    os.flush();
    if (connection.getResponseCode() == 200) {
        // ???
        InputStream is = connection.getInputStream();
        // ?
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        // ?
        int len = 0;
        // 
        byte buffer[] = new byte[1024];
        // ??
        while ((len = is.read(buffer)) != -1) {
            // ??os
            baos.write(buffer, 0, len);
        }
        // ?
        is.close();
        baos.close();
        connection.disconnect();
        // 
        final String result = new String(baos.toByteArray());

        ApiResponse apiResponse;
        try {
            apiResponse = ApiModel.getInstance().getApiResponse(model, result);
        } catch (Exception e) {
            apiResponse = null;
        }

        return (T) apiResponse;
    } else {
        connection.disconnect();
        return null;
    }
}

---

From source file:com.comcast.cmb.test.tools.CNSTestingUtils.java

public static String sendHttpMessage(String endpoint, String message) throws Exception {

    if ((message == null) || (endpoint == null)) {
        throw new Exception("Message and Endpoint must both be set");
    }//from   ww w  .j av  a 2  s .  co  m

    String newPostBody = message;
    byte newPostBodyBytes[] = newPostBody.getBytes();

    URL url = new URL(endpoint);

    logger.info(">> " + url.toString());

    HttpURLConnection con = (HttpURLConnection) url.openConnection();

    con.setRequestMethod("GET"); // POST no matter what
    con.setDoOutput(true);
    con.setDoInput(true);
    con.setFollowRedirects(false);
    con.setUseCaches(true);

    logger.info(">> " + "GET");

    //con.setRequestProperty("content-length", newPostBody.length() + "");
    con.setRequestProperty("host", url.getHost());

    con.connect();

    logger.info(">> " + newPostBody);

    int statusCode = con.getResponseCode();

    BufferedInputStream responseStream;

    logger.info("StatusCode:" + statusCode);

    if (statusCode != 200 && statusCode != 201) {

        responseStream = new BufferedInputStream(con.getErrorStream());
    } else {
        responseStream = new BufferedInputStream(con.getInputStream());
    }

    int b;
    String response = "";

    while ((b = responseStream.read()) != -1) {
        response += (char) b;
    }

    logger.info("response:" + response);
    return response;
}

---

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