Example usage for java.net HttpURLConnection getOutputStream

List of usage examples for java.net HttpURLConnection getOutputStream

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Introduction

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

Prototype

public OutputStream getOutputStream() throws IOException

Source Link

Document

Returns an output stream that writes to this connection.

Usage

From source file:com.book.jtm.chap03.HttpClientDemo.java

public static void sendRequest(String method, String url) throws IOException {
    InputStream is = null;/*from www  .  j ava2 s  .  c om*/
    try {
        URL newUrl = new URL(url);
        HttpURLConnection conn = (HttpURLConnection) newUrl.openConnection();
        // ?10
        conn.setReadTimeout(10000);
        // 15
        conn.setConnectTimeout(15000);
        // ?,GET"GET",post"POST"
        conn.setRequestMethod("GET");
        // ??
        conn.setDoInput(true);
        // ??,????
        conn.setDoOutput(true);
        // Header
        conn.setRequestProperty("Connection", "Keep-Alive");
        // ?
        List<NameValuePair> paramsList = new ArrayList<NameValuePair>();
        paramsList.add(new BasicNameValuePair("username", "mr.simple"));
        paramsList.add(new BasicNameValuePair("pwd", "mypwd"));
        writeParams(conn.getOutputStream(), paramsList);

        // ?
        conn.connect();
        is = conn.getInputStream();
        // ?
        String result = convertStreamToString(is);
        Log.i("", "###  : " + result);
    } finally {
        if (is != null) {
            is.close();
        }
    }
}

From source file:com.webarch.common.net.http.HttpService.java

/**
 * ?url//  w w w . j a  va 2s. co m
 *
 * @param inputStream ?
 * @param fileName    ??
 * @param fileType    
 * @param contentType 
 * @param identity    
 * @return 
 */
public static String uploadMediaFile(String requestUrl, FileInputStream inputStream, String fileName,
        String fileType, String contentType, String identity) {
    String lineEnd = System.getProperty("line.separator");
    String twoHyphens = "--";
    String boundary = "*****";
    String result = null;
    try {
        //?
        URL submit = new URL(requestUrl);
        HttpURLConnection conn = (HttpURLConnection) submit.openConnection();
        //
        conn.setDoInput(true);
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        //?
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.setRequestProperty("Charset", DEFAULT_CHARSET);
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary);
        //??
        DataOutputStream dos = new DataOutputStream(conn.getOutputStream());
        dos.writeBytes(twoHyphens + boundary + lineEnd);
        dos.writeBytes("Content-Disposition: form-data; name=\"file\";filename=\"" + fileName
                + ";Content-Type=\"" + contentType + lineEnd);
        dos.writeBytes(lineEnd);

        byte[] buffer = new byte[8192]; // 8k
        int count = 0;
        while ((count = inputStream.read(buffer)) != -1) {
            dos.write(buffer, 0, count);
        }
        inputStream.close(); //?
        dos.writeBytes(lineEnd);
        dos.writeBytes(twoHyphens + boundary + twoHyphens + lineEnd);
        dos.flush();

        InputStream is = conn.getInputStream();
        InputStreamReader isr = new InputStreamReader(is, DEFAULT_CHARSET);
        BufferedReader br = new BufferedReader(isr);
        result = br.readLine();
        dos.close();
        is.close();
    } catch (IOException e) {
        logger.error("", e);
    }
    return result;
}

From source file:eu.geopaparazzi.library.network.NetworkUtilities.java

/**
 * Sends a string via POST to a given url.
 * /*from  w  ww. ja va2s  .  c  o m*/
 * @param urlStr the url to which to send to.
 * @param string the string to send as post body.
 * @param user the user or <code>null</code>.
 * @param password the password or <code>null</code>.
 * @return the response.
 * @throws Exception
 */
public static String sendPost(String urlStr, String string, String user, String password) throws Exception {
    BufferedOutputStream wr = null;
    HttpURLConnection conn = null;
    try {
        conn = makeNewConnection(urlStr);
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        // conn.setChunkedStreamingMode(0);
        conn.setUseCaches(false);
        if (user != null && password != null) {
            conn.setRequestProperty("Authorization", getB64Auth(user, password));
        }
        conn.connect();

        // Make server believe we are form data...
        wr = new BufferedOutputStream(conn.getOutputStream());
        byte[] bytes = string.getBytes();
        wr.write(bytes);
        wr.flush();

        int responseCode = conn.getResponseCode();
        StringBuilder returnMessageBuilder = new StringBuilder();
        if (responseCode == HttpURLConnection.HTTP_OK) {
            BufferedReader br = new BufferedReader(new InputStreamReader(conn.getInputStream(), "utf-8"));
            while (true) {
                String line = br.readLine();
                if (line == null)
                    break;
                returnMessageBuilder.append(line + "\n");
            }
            br.close();
        }

        return returnMessageBuilder.toString();
    } catch (Exception e) {
        e.printStackTrace();
        throw e;
    } finally {
        if (conn != null)
            conn.disconnect();
    }
}

From source file:com.jooketechnologies.network.ServerUtilities.java

static JSONObject post(String endpoint, int action, Map<String, String> params) {
    URL url;// w  ww.java 2 s .c om
    try {
        url = new URL(endpoint);
    } catch (MalformedURLException e) {
        throw new IllegalArgumentException("invalid url: " + endpoint);
    }
    StringBuilder bodyBuilder = new StringBuilder();
    Iterator<Entry<String, String>> iterator = params.entrySet().iterator();
    // constructs the POST body using the parameters
    while (iterator.hasNext()) {
        Entry<String, String> param = iterator.next();
        bodyBuilder.append(param.getKey()).append('=').append(param.getValue());
        if (iterator.hasNext()) {
            bodyBuilder.append('&');
        }
    }
    String body = bodyBuilder.toString();
    byte[] bytes = body.getBytes();
    HttpURLConnection conn = null;
    try {
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoOutput(true);
        conn.setUseCaches(false);
        conn.setFixedLengthStreamingMode(bytes.length);
        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=UTF-8");
        // post the request
        OutputStream out = conn.getOutputStream();
        out.write(bytes);
        out.close();
        // handle the response

        int status = conn.getResponseCode();
        InputStream is = conn.getInputStream();
        if (status != 200) {
            if (conn != null) {
                conn.disconnect();
            }
        } else {
            JSONObject jsonObject = streamToString(is);
            return jsonObject;
        }
    } catch (IOException e) {

        e.printStackTrace();
    }
    return null;

}

From source file:net.mceoin.cominghome.api.NestUtil.java

/**
 * Make HTTP/JSON call to Nest and set away status.
 *
 * @param access_token OAuth token to allow access to Nest
 * @param structure_id ID of structure with thermostat
 * @param away_status Either "home" or "away"
 * @return Equal to "Success" if successful, otherwise it contains a hint on the error.
 *///ww w  . j  a v  a2  s  .co  m
public static String tellNestAwayStatusCall(String access_token, String structure_id, String away_status) {

    String urlString = "https://developer-api.nest.com/structures/" + structure_id + "/away?auth="
            + access_token;
    log.info("url=" + urlString);

    StringBuilder builder = new StringBuilder();
    boolean error = false;
    String errorResult = "";

    HttpURLConnection urlConnection = null;
    try {
        URL url = new URL(urlString);
        urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestProperty("User-Agent", "ComingHomeBackend/1.0");
        urlConnection.setRequestMethod("PUT");
        urlConnection.setDoOutput(true);
        urlConnection.setDoInput(true);
        urlConnection.setChunkedStreamingMode(0);

        urlConnection.setRequestProperty("Content-Type", "application/json; charset=utf8");

        String payload = "\"" + away_status + "\"";

        OutputStreamWriter wr = new OutputStreamWriter(urlConnection.getOutputStream());
        wr.write(payload);
        wr.flush();
        log.info(payload);

        boolean redirect = false;

        // normally, 3xx is redirect
        int status = urlConnection.getResponseCode();
        if (status != HttpURLConnection.HTTP_OK) {
            if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM
                    || status == 307 // Temporary redirect
                    || status == HttpURLConnection.HTTP_SEE_OTHER)
                redirect = true;
        }

        //            System.out.println("Response Code ... " + status);

        if (redirect) {

            // get redirect url from "location" header field
            String newUrl = urlConnection.getHeaderField("Location");

            // open the new connnection again
            urlConnection = (HttpURLConnection) new URL(newUrl).openConnection();
            urlConnection.setRequestMethod("PUT");
            urlConnection.setDoOutput(true);
            urlConnection.setDoInput(true);
            urlConnection.setChunkedStreamingMode(0);
            urlConnection.setRequestProperty("Content-Type", "application/json; charset=utf8");
            urlConnection.setRequestProperty("Accept", "application/json");

            //                System.out.println("Redirect to URL : " + newUrl);

            wr = new OutputStreamWriter(urlConnection.getOutputStream());
            wr.write(payload);
            wr.flush();

        }

        int statusCode = urlConnection.getResponseCode();

        log.info("statusCode=" + statusCode);
        if ((statusCode == HttpURLConnection.HTTP_OK)) {
            error = false;
        } else if (statusCode == HttpURLConnection.HTTP_UNAUTHORIZED) {
            // bad auth
            error = true;
            errorResult = "Unauthorized";
        } else if (statusCode == HttpURLConnection.HTTP_BAD_REQUEST) {
            error = true;
            InputStream response;
            response = urlConnection.getErrorStream();
            BufferedReader reader = new BufferedReader(new InputStreamReader(response));
            String line;
            while ((line = reader.readLine()) != null) {
                builder.append(line);
            }
            log.info("response=" + builder.toString());
            JSONObject object = new JSONObject(builder.toString());

            Iterator keys = object.keys();
            while (keys.hasNext()) {
                String key = (String) keys.next();
                if (key.equals("error")) {
                    // error = Internal Error on bad structure_id
                    errorResult = object.getString("error");
                    log.info("errorResult=" + errorResult);
                }
            }
        } else {
            error = true;
            errorResult = Integer.toString(statusCode);
        }

    } catch (IOException e) {
        error = true;
        errorResult = e.getLocalizedMessage();
        log.warning("IOException: " + errorResult);
    } catch (Exception e) {
        error = true;
        errorResult = e.getLocalizedMessage();
        log.warning("Exception: " + errorResult);
    } finally {
        if (urlConnection != null) {
            urlConnection.disconnect();
        }
    }
    if (error) {
        return "Error: " + errorResult;
    } else {
        return "Success";
    }
}

From source file:com.navercorp.volleyextensions.volleyer.multipart.stack.MultipartHurlStack.java

/**
 * <pre>//from  w w w  .ja v  a 2s  .c o m
 * Add a multipart and write it to output of a connection.
 *
 * NOTE : It only supports chunked transfer encoding mode,
 *        the server should supports it.
 * </pre>
 */
private static void addMultipartIfExists(HttpURLConnection connection, Request<?> request)
        throws IOException, AuthFailureError {
    OutputStream os = null;
    try {
        if (!(request instanceof MultipartContainer)) {
            return;
        }

        MultipartContainer container = (MultipartContainer) request;
        if (!container.hasMultipart()) {
            return;
        }

        Multipart multipart = container.getMultipart();
        if (multipart == null) {
            return;
        }

        connection.setDoOutput(true);
        connection.addRequestProperty("Content-Type", multipart.getContentType());
        // Set chunked encoding mode.
        connection.setChunkedStreamingMode(DEFAULT_CHUNK_LENGTH);
        os = connection.getOutputStream();
        multipart.write(os);
        os.flush();
    } finally {
        if (os != null) {
            os.close();
        }
    }
}

From source file:com.krawler.common.util.BaseStringUtil.java

public static String makeExternalRequest(String urlstr, String postdata) {
    String result = "";
    try {// w  w w  .ja  v a2s.  c om
        URL url = new URL(urlstr);
        try {
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            conn.setDoOutput(true);
            DataOutputStream d = new DataOutputStream(conn.getOutputStream());
            String data = postdata;
            OutputStreamWriter ow = new OutputStreamWriter(d);
            ow.write(data);
            ow.close();
            BufferedReader input = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String inputLine;
            StringBuilder stringbufff = new StringBuilder();
            while ((inputLine = input.readLine()) != null) {
                stringbufff.append(inputLine);
            }
            result = stringbufff.toString();
            input.close();
        } catch (IOException ex) {
            System.out.print(ex);
        }

    } catch (MalformedURLException ex) {
        System.out.print(ex);
    } finally {
        return result;
    }
}

From source file:com.onesignal.OneSignalRestClient.java

private static void makeRequest(String url, String method, JSONObject jsonBody,
        ResponseHandler responseHandler) {
    HttpURLConnection con = null;
    int httpResponse = -1;
    String json = null;// w  ww.j a  v  a2s  .  co m

    try {
        con = (HttpURLConnection) new URL(BASE_URL + url).openConnection();
        con.setUseCaches(false);
        con.setDoOutput(true);
        con.setConnectTimeout(TIMEOUT);
        con.setReadTimeout(TIMEOUT);

        if (jsonBody != null)
            con.setDoInput(true);

        con.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
        con.setRequestMethod(method);

        if (jsonBody != null) {
            String strJsonBody = jsonBody.toString();
            OneSignal.Log(OneSignal.LOG_LEVEL.DEBUG, method + " SEND JSON: " + strJsonBody);

            byte[] sendBytes = strJsonBody.getBytes("UTF-8");
            con.setFixedLengthStreamingMode(sendBytes.length);

            OutputStream outputStream = con.getOutputStream();
            outputStream.write(sendBytes);
        }

        httpResponse = con.getResponseCode();

        InputStream inputStream;
        Scanner scanner;
        if (httpResponse == HttpURLConnection.HTTP_OK) {
            inputStream = con.getInputStream();
            scanner = new Scanner(inputStream, "UTF-8");
            json = scanner.useDelimiter("\\A").hasNext() ? scanner.next() : "";
            scanner.close();
            OneSignal.Log(OneSignal.LOG_LEVEL.DEBUG, method + " RECEIVED JSON: " + json);

            if (responseHandler != null)
                responseHandler.onSuccess(json);
        } else {
            inputStream = con.getErrorStream();
            if (inputStream == null)
                inputStream = con.getInputStream();

            if (inputStream != null) {
                scanner = new Scanner(inputStream, "UTF-8");
                json = scanner.useDelimiter("\\A").hasNext() ? scanner.next() : "";
                scanner.close();
                OneSignal.Log(OneSignal.LOG_LEVEL.WARN, method + " RECEIVED JSON: " + json);
            } else
                OneSignal.Log(OneSignal.LOG_LEVEL.WARN,
                        method + " HTTP Code: " + httpResponse + " No response body!");

            if (responseHandler != null)
                responseHandler.onFailure(httpResponse, json, null);
        }
    } catch (Throwable t) {
        if (t instanceof java.net.ConnectException || t instanceof java.net.UnknownHostException)
            OneSignal.Log(OneSignal.LOG_LEVEL.INFO,
                    "Could not send last request, device is offline. Throwable: " + t.getClass().getName());
        else
            OneSignal.Log(OneSignal.LOG_LEVEL.WARN, method + " Error thrown from network stack. ", t);

        if (responseHandler != null)
            responseHandler.onFailure(httpResponse, null, t);
    } finally {
        if (con != null)
            con.disconnect();
    }
}

From source file:com.fota.Link.sdpApi.java

public static String getNcnInfo(String CTN) throws JDOMException {
    String resultStr = "";
    String logData = "";
    try {/*from  w  ww .  ja  v  a2 s . c om*/
        String endPointUrl = PropUtil.getPropValue("sdp.oif516.url");

        String strRequest = "<soapenv:Envelope xmlns:soapenv='http://schemas.xmlsoap.org/soap/envelope/' "
                + "xmlns:oas='http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd'"
                + " xmlns:sdp='http://kt.com/sdp'>" + "     <soapenv:Header>" + "         <oas:Security>"
                + "             <oas:UsernameToken>" + "                 <oas:Username>"
                + PropUtil.getPropValue("sdp.id") + "</oas:Username>" + "                 <oas:Password>"
                + PropUtil.getPropValue("sdp.pw") + "</oas:Password>" + "             </oas:UsernameToken>"
                + "         </oas:Security>" + "     </soapenv:Header>"

                + "     <soapenv:Body>" + "         <sdp:getBasicUserInfoAndMarketInfoRequest>"
                + "         <!--You may enterthe following 6 items in any order-->"
                + "             <sdp:CALL_CTN>" + CTN + "</sdp:CALL_CTN>"
                + "         </sdp:getBasicUserInfoAndMarketInfoRequest>\n" + "     </soapenv:Body>\n"
                + "</soapenv:Envelope>";

        logData = "\r\n---------- Get Ncn Req Info start ----------\r\n";
        logData += " get Ncn Req Info - endPointUrl : " + endPointUrl;
        logData += "\r\n get Ncn Req Info - Content-type : text/xml;charset=utf-8";
        logData += "\r\n get Ncn Req Info - RequestMethod : POST";
        logData += "\r\n get Ncn Req Info - xml : " + strRequest;
        logData += "\r\n---------- Get Ncn Req Info end ----------";

        logger.info(logData);

        // connection
        URL url = new URL(endPointUrl);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("Content-type", "text/xml;charset=utf-8");
        connection.setRequestMethod("POST");
        connection.setDoOutput(true);
        connection.setDoInput(true);
        connection.connect();

        // output
        OutputStream os = connection.getOutputStream();
        // os.write(strRequest.getBytes(), 0, strRequest.length());
        os.write(strRequest.getBytes("utf-8"));
        os.flush();
        os.close();

        // input
        InputStream is = connection.getInputStream();
        BufferedReader br = new BufferedReader(new InputStreamReader(is, "utf-8"));
        String line = "";
        String resValue = "";
        String parseStr = "";
        while ((line = br.readLine()) != null) {
            System.out.println(line);
            parseStr = line;

        }

        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = factory.newDocumentBuilder();
        InputSource temp = new InputSource();
        temp.setCharacterStream(new StringReader(parseStr));
        Document doc = builder.parse(temp); //xml?

        NodeList list = doc.getElementsByTagName("*");

        int i = 0;
        Element element;
        String contents;

        String contractNum = "";
        String customerId = "";
        while (list.item(i) != null) {
            element = (Element) list.item(i);
            if (element.hasChildNodes()) {
                contents = element.getFirstChild().getNodeValue();
                System.out.println(element.getNodeName() + " / " + element.getFirstChild().getNodeName());

                if (element.getNodeName().equals("sdp:NS_CONTRACT_NUM")) {
                    //                  resultStr = element.getFirstChild().getNodeValue();
                    contractNum = element.getFirstChild().getNodeValue();
                }
                if (element.getNodeName().equals("sdp:NS_CUSTOMER_ID")) {
                    customerId = element.getFirstChild().getNodeValue();
                }

                //               System.out.println(" >>>>> " + contents);
            }
            i++;
        }

        //         System.out.println("contractNum : " + contractNum + " / cusomerId : " + customerId);

        resultStr = getNcnFromContractnumAndCustomerId(contractNum, customerId);
        //         System.out.println("ncn : " + resultStr);

        //resultStr = resValue;         
        //         resultStr = java.net.URLDecoder.decode(resultStr, "euc-kr");
        connection.disconnect();

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

    return resultStr;
}

From source file:Main.java

@TargetApi(Build.VERSION_CODES.KITKAT)
public static String net(String strUrl, Map<String, Object> params, String method) throws Exception {
    HttpURLConnection conn = null;
    BufferedReader reader = null;
    String rs = null;//from w ww.  j  a  v  a  2s .  co  m
    try {
        StringBuffer sb = new StringBuffer();
        if (method == null || method.equals("GET")) {
            strUrl = strUrl + "?" + urlencode(params);
        }
        URL url = new URL(strUrl);
        conn = (HttpURLConnection) url.openConnection();
        if (method == null || method.equals("GET")) {
            conn.setRequestMethod("GET");
        } else {
            conn.setRequestMethod("POST");
            conn.setDoOutput(true);
        }
        conn.setRequestProperty("User-agent", userAgent);
        conn.setUseCaches(false);
        conn.setConnectTimeout(DEF_CONN_TIMEOUT);
        conn.setReadTimeout(DEF_READ_TIMEOUT);
        conn.setInstanceFollowRedirects(false);
        conn.connect();
        if (params != null && method.equals("POST")) {
            try (DataOutputStream out = new DataOutputStream(conn.getOutputStream())) {
                out.writeBytes(urlencode(params));
            }
        }
        InputStream is = conn.getInputStream();
        reader = new BufferedReader(new InputStreamReader(is, DEF_CHATSET));
        String strRead = null;
        while ((strRead = reader.readLine()) != null) {
            sb.append(strRead);
        }
        rs = sb.toString();
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        if (reader != null) {
            reader.close();
        }
        if (conn != null) {
            conn.disconnect();
        }
    }
    return rs;
}