Example usage for java.net URL openConnection

Introduction

In this page you can find the example usage for java.net URL openConnection.

Prototype

public URLConnection openConnection() throws java.io.IOException 

Source Link

Document

Returns a java.net.URLConnection URLConnection instance that represents a connection to the remote object referred to by the URL .

Usage

From source file:com.infosupport.service.LPRServiceCaller.java

public static JSONObject doGet(String urlString) {
    String json = null;/*  ww  w  .  j a  va2s .co m*/
    try {
        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output;
        while ((output = br.readLine()) != null) {
            json = output;
            System.out.println(json + "from doGet");
        }
        conn.disconnect();
    } catch (IOException e) {
        Log.w(TAG, "IOException, waarschijnlijk geen internet connectie aanwezig...");
    }
    JSONObject jsonObject = null;
    try {
        jsonObject = new JSONObject(json);
    } catch (JSONException e) {
        Log.e(TAG, "Kon geen JsonObject maken van het response");
    }
    return jsonObject;
}

---

From source file:com.leosys.core.utils.HttpServiceImpl.java

public static String getMyitem(String letter, Integer page) {
    Properties p = new Properties();
    String urls = getXmlPath();//from ww w  .  j  ava  2  s  .  c o m
    try {
        p.load(new FileInputStream(urls));
    } catch (Exception e) {
        e.printStackTrace();
    }
    String subUrl = p.getProperty("path");
    String restUrl = subUrl + "model=myservice&action=getwebdomainsitebypage&page=" + page + "&pagesize=10";
    if (StringUtils.isNotEmpty(letter)) {
        restUrl += "&letter=" + letter;
    }
    StringBuffer strBuf;
    strBuf = new StringBuffer();

    try {
        URL url = new URL(restUrl);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));//?  
        String line = null;
        while ((line = reader.readLine()) != null)
            strBuf.append(line + " ");
        reader.close();
    } catch (MalformedURLException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
    System.out.println(strBuf.toString());
    return strBuf.toString();
}

---

From source file:com.microsoft.office365.connectmicrosoftgraph.ConnectUnitTests.java

@BeforeClass
public static void getAccessTokenUsingPasswordGrant()
        throws IOException, KeyStoreException, NoSuchAlgorithmException, KeyManagementException, JSONException {
    URL url = new URL(TOKEN_ENDPOINT);
    HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();

    String urlParameters = String.format(
            "grant_type=%1$s&resource=%2$s&client_id=%3$s&username=%4$s&password=%5$s", GRANT_TYPE,
            URLEncoder.encode(Constants.MICROSOFT_GRAPH_API_ENDPOINT_RESOURCE_ID, "UTF-8"), clientId, username,
            password);//from www .  ja  va 2  s .  c o m

    connection.setRequestMethod(REQUEST_METHOD);
    connection.setRequestProperty("Content-Type", CONTENT_TYPE);
    connection.setRequestProperty("Content-Length", String.valueOf(urlParameters.getBytes("UTF-8").length));

    connection.setDoOutput(true);
    DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
    dataOutputStream.writeBytes(urlParameters);
    dataOutputStream.flush();
    dataOutputStream.close();

    connection.getResponseCode();

    BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();

    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();

    JsonParser jsonParser = new JsonParser();
    JsonObject grantResponse = (JsonObject) jsonParser.parse(response.toString());
    accessToken = grantResponse.get("access_token").getAsString();
}

---

From source file:com.telefonica.iot.perseo.test.Help.java

public static Res doMethod(String url, String method) throws Exception {
    URL obj = new URL(url);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();
    con.setRequestMethod(method);//ww  w .ja v  a  2  s .c  om
    int responseCode = con.getResponseCode();
    String body = getBodyResponse(con);
    return new Res(responseCode, body);
}

---

From source file:com.pentaho.ctools.utils.HttpUtils.java

/**
 * This method shall return the status of HTTP request.
 *
 * @param url//w w  w . j  a v  a 2  s  .  co  m
 * @return
 * @throws Exception
 */
public static int GetHttpStatus(String url) {
    LOG.debug("The URL: " + url);
    int nHttpStatus = HttpStatus.SC_BAD_REQUEST;

    try {
        URL oUrl = new URL(url);
        URLConnection uc = oUrl.openConnection();
        uc.connect();
        nHttpStatus = ((HttpURLConnection) uc).getResponseCode();
        LOG.debug("HTTP Status:" + nHttpStatus);
    } catch (Exception ex) {
        LOG.error(ex.getMessage());
    }

    return nHttpStatus;
}

---

From source file:com.android.nunes.sophiamobile.gsm.GcmSender.java

public static void enviar(String msg, String token) {

    try {/*from   w  w  w . j av  a  2  s .c  o  m*/
        // Prepare JSON containing the GCM message content. What to send and where to send.
        JSONObject jGcmData = new JSONObject();
        JSONObject jData = new JSONObject();
        jData.put("message", msg.trim());
        // Where to send GCM message.
        if (token != null) {
            jGcmData.put("to", token.trim());
        } else {
            jGcmData.put("to", "/topics/global");
        }
        // What to send in GCM message.
        jGcmData.put("data", jData);

        // Create connection to send GCM Message request.
        URL url = new URL("https://android.googleapis.com/gcm/send");
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestProperty("Authorization", "key=" + API_KEY);
        conn.setRequestProperty("Content-Type", "application/json");
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);

        // Send GCM message content.
        OutputStream outputStream = conn.getOutputStream();
        outputStream.write(jGcmData.toString().getBytes());

        // Read GCM response.
        InputStream inputStream = conn.getInputStream();
        String resp = IOUtils.toString(inputStream);
        System.out.println(resp);
        System.out.println("Check your device/emulator for notification or logcat for "
                + "confirmation of the receipt of the GCM message.");
    } catch (IOException e) {
        System.out.println("Unable to send GCM message.");
        System.out.println("Please ensure that API_KEY has been replaced by the server "
                + "API key, and that the device's registration token is correct (if specified).");
        e.printStackTrace();
    } catch (JSONException e) {
        e.printStackTrace();
    }
}

---

From source file:com.intellectualcrafters.plot.uuid.UUIDFetcher.java

private static HttpURLConnection createConnection() throws Exception {
    final URL url = new URL(PROFILE_URL);
    final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/json");
    connection.setUseCaches(false);//from   ww w  .jav a 2s  . co  m
    connection.setDoInput(true);
    connection.setDoOutput(true);
    return connection;
}

---

From source file:Main.java

public static void connectAndSendHttp(ByteArrayOutputStream baos) {
    try {//from  w  w w.  j  a  v a2 s  .  c  o  m

        URL url;
        url = new URL("http://10.0.2.2:8080");

        String charset = "UTF-8";

        HttpURLConnection conn;

        conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Accept-Charset", charset);
        conn.setRequestProperty("ENCTYPE", "multipart/form-data");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
        OutputStream output = conn.getOutputStream();
        output.write(baos.toByteArray());
        output.close();
        conn.getInputStream();

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

---

From source file:com.appdynamics.common.RESTClient.java

public static void sendGet(String urlString, String apiKey) {

    try {/*w w w.ja  v a 2  s  .co  m*/

        URL url = new URL(urlString);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("GET");
        conn.setRequestProperty("Accept", "application/json");
        conn.setRequestProperty("Authorization",
                "Basic " + new String(Base64.encodeBase64((apiKey).getBytes())));

        if (conn.getResponseCode() != 200) {
            throw new RuntimeException("Failed : HTTP error code : " + conn.getResponseCode());
        }

        BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));

        String output;
        logger.info("Output from Server .... \n");
        while ((output = br.readLine()) != null) {
            logger.info(output);
        }

        conn.disconnect();

    } catch (MalformedURLException e) {

        e.printStackTrace();

    } catch (IOException e) {

        e.printStackTrace();

    }

}

---

From source file:com.telefonica.iot.perseo.test.Help.java

public static Res sendMethod(String url, String body, String method) throws Exception {
    URL obj = new URL(url);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();
    con.setRequestMethod(method);//from  w  ww.j  a  va 2 s  .co m
    con.setDoOutput(true);
    DataOutputStream wr = new DataOutputStream(con.getOutputStream());
    wr.writeBytes(body);
    wr.flush();
    wr.close();
    int responseCode = con.getResponseCode();
    String responseBody = getBodyResponse(con);
    return new Res(responseCode, responseBody);
}

---

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