Example usage for java.io DataOutputStream close

Introduction

In this page you can find the example usage for java.io DataOutputStream close.

Prototype

@Override
public void close() throws IOException 

Source Link

Document

Closes this output stream and releases any system resources associated with the stream.

Usage

From source file:software.uncharted.util.HTTPUtil.java

public static String post(String urlToRead, String postData) {
    URL url;/*  w  w  w.j  a v a2 s. c  om*/
    HttpURLConnection conn;
    try {
        url = new URL(urlToRead);
        conn = (HttpURLConnection) url.openConnection();

        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setRequestProperty("Content-Type", "application/json");

        DataOutputStream wr = new DataOutputStream(conn.getOutputStream());
        wr.writeBytes(postData);
        wr.flush();
        wr.close();

        ByteArrayOutputStream buffer = new ByteArrayOutputStream();
        int nRead;
        byte[] data = new byte[16384];
        InputStream is = conn.getInputStream();
        while ((nRead = is.read(data, 0, data.length)) != -1) {
            buffer.write(data, 0, nRead);
        }
        buffer.flush();
        return buffer.toString();
    } catch (Exception e) {
        e.printStackTrace();
        System.err.println("Failed to read URL: " + urlToRead + " <" + e.getMessage() + ">");
    }
    return null;
}

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From source file:Main.java

public static String httpPost(String urlStr, List<NameValuePair> params) {

    String paramsEncoded = "";
    if (params != null) {
        paramsEncoded = URLEncodedUtils.format(params, "UTF-8");
    }//www  .jav a  2s .  com

    String result = null;
    URL url = null;
    HttpURLConnection connection = null;
    InputStreamReader in = null;
    try {
        url = new URL(urlStr);
        connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.setDoOutput(true);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
        connection.setRequestProperty("Charset", "utf-8");
        DataOutputStream dop = new DataOutputStream(connection.getOutputStream());
        dop.writeBytes(paramsEncoded);
        dop.flush();
        dop.close();

        in = new InputStreamReader(connection.getInputStream());
        BufferedReader bufferedReader = new BufferedReader(in);
        StringBuffer strBuffer = new StringBuffer();
        String line = null;
        while ((line = bufferedReader.readLine()) != null) {
            strBuffer.append(line);
        }
        result = strBuffer.toString();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        if (connection != null) {
            connection.disconnect();
        }
        if (in != null) {
            try {
                in.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

    }
    return result;
}

---

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  www  .j av a2 s .c o 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);
}

---

From source file:com.lightboxtechnologies.spectrum.FsEntryHBaseInputFormat.java

static String convertScanToString(Scan scan) throws IOException {
    final ByteArrayOutputStream out = new ByteArrayOutputStream();
    DataOutputStream dos = null;
    try {/*from   w w  w  .jav  a 2s .com*/
        dos = new DataOutputStream(out);
        scan.write(dos);
        dos.close();
        return Base64.encodeBytes(out.toByteArray());
    } finally {
        IOUtils.closeQuietly(dos);
    }
}

---

From source file:com.shopgun.android.sdk.network.impl.HttpURLNetwork.java

private static void addBodyIfExists(HttpURLConnection connection, Request<?> request) throws IOException {
    byte[] body = request.getBody();
    if (body != null) {
        connection.setDoOutput(true);//from   w  w  w.j  av  a  2  s.  c o  m
        connection.addRequestProperty("Content-Type", request.getBodyContentType());
        DataOutputStream out = new DataOutputStream(connection.getOutputStream());
        out.write(body);
        out.close();
    }
}

---

From source file:javaphpmysql.JavaPHPMySQL.java

public static void sendPost() {
    //Creamos un objeto JSON
    JSONObject jsonObj = new JSONObject();
    //Aadimos el nombre, apellidos y email del usuario
    jsonObj.put("nombre", nombre);
    jsonObj.put("apellidos", apellidos);
    jsonObj.put("email", email);
    //Creamos una lista para almacenar el JSON
    List l = new LinkedList();
    l.addAll(Arrays.asList(jsonObj));
    //Generamos el String JSON
    String jsonString = JSONValue.toJSONString(l);
    System.out.println("JSON GENERADO:");
    System.out.println(jsonString);
    System.out.println("");

    try {//  www  .  jav a  2s . co  m
        //Codificar el json a URL
        jsonString = URLEncoder.encode(jsonString, "UTF-8");
        //Generar la URL
        String url = SERVER_PATH + "listenPost.php";
        //Creamos un nuevo objeto URL con la url donde queremos enviar el JSON
        URL obj = new URL(url);
        //Creamos un objeto de conexin
        HttpURLConnection con = (HttpURLConnection) obj.openConnection();
        //Aadimos la cabecera
        con.setRequestMethod("POST");
        con.setRequestProperty("User-Agent", USER_AGENT);
        con.setRequestProperty("Accept-Language", "en-US,en;q=0.5");
        //Creamos los parametros para enviar
        String urlParameters = "json=" + jsonString;
        // Enviamos los datos por POST
        con.setDoOutput(true);
        DataOutputStream wr = new DataOutputStream(con.getOutputStream());
        wr.writeBytes(urlParameters);
        wr.flush();
        wr.close();
        //Capturamos la respuesta del servidor
        int responseCode = con.getResponseCode();
        System.out.println("\nSending 'POST' request to URL : " + url);
        System.out.println("Post parameters : " + urlParameters);
        System.out.println("Response Code : " + responseCode);

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

        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }
        //Mostramos la respuesta del servidor por consola
        System.out.println(response);
        //cerramos la conexin
        in.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:TestPipes.java

public static void writeData(OutputStream os) {
    try {//from w  ww. j av  a2  s  .  com
        DataOutputStream out = new DataOutputStream(new BufferedOutputStream(os));

        int[] numArray = { 1, 2, 3, 4, 5 };

        for (int i = 0; i < numArray.length; i++) {
            out.writeInt(numArray[i]);
        }

        out.flush();

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

---

From source file:de.cubeisland.engine.core.util.McUUID.java

private static HttpURLConnection postQuery(ArrayNode node, int page) throws IOException {
    HttpURLConnection con = (HttpURLConnection) new URL(MOJANG_API_URL_NAME_UUID + page).openConnection();
    con.setRequestMethod("POST");
    con.setRequestProperty("Content-Type", "application/json");
    con.setUseCaches(false);//from  w  w w.  ja  v a2  s  . c  o m
    con.setDoInput(true);
    con.setDoOutput(true);
    DataOutputStream writer = new DataOutputStream(con.getOutputStream());
    writer.write(node.toString().getBytes());
    writer.close();
    return con;
}

---

From source file:ro.fortsoft.matilda.util.RecaptchaUtils.java

public static boolean verify(String recaptchaResponse, String secret) {
    if (StringUtils.isNullOrEmpty(recaptchaResponse)) {
        return false;
    }//from   ww  w  . j  a v  a2s  .  c  o  m

    boolean result = false;
    try {
        URL url = new URL("https://www.google.com/recaptcha/api/siteverify");
        HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();

        // add request header
        connection.setRequestMethod("POST");
        connection.setRequestProperty("User-Agent", "Mozilla/5.0");
        connection.setRequestProperty("Accept-Language", "en-US,en;q=0.5");

        String postParams = "secret=" + secret + "&response=" + recaptchaResponse;
        //            log.debug("Post parameters '{}'", postParams);

        // send post request
        connection.setDoOutput(true);
        DataOutputStream outputStream = new DataOutputStream(connection.getOutputStream());
        outputStream.writeBytes(postParams);
        outputStream.flush();
        outputStream.close();

        int responseCode = connection.getResponseCode();
        log.debug("Response code '{}'", responseCode);

        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        StringBuilder response = new StringBuilder();

        String line;
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();

        // print result
        log.debug("Response '{}'", response.toString());

        // parse JSON response and return 'success' value
        ObjectMapper mapper = new ObjectMapper();
        JsonNode rootNode = mapper.readTree(response.toString());
        JsonNode nameNode = rootNode.path("success");

        result = nameNode.asBoolean();
    } catch (Exception e) {
        log.error(e.getMessage(), e);
    }

    return result;
}

---

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);//w  w  w  .  j a  va  2s  .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();
}

---

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