Example usage for java.net HttpURLConnection connect

List of usage examples for java.net HttpURLConnection connect

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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.urhola.vehicletracker.connection.mattersoft.MatterSoftLiveHelsinki.java

private HttpURLConnection getOpenedConnection(List<NameValuePair> params, String responseMethod)
        throws ConnectionException {
    HttpURLConnection urlConnection;
    try {//from   w w w. j  a v  a 2 s.c o m
        URIBuilder b = new URIBuilder(BASE_URL);
        b.addParameters(params);
        URL url = b.build().toURL();
        urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setDoOutput(true);
        urlConnection.setRequestMethod(responseMethod);
        urlConnection.setReadTimeout(TIME_OUT_LENGTH);
        urlConnection.setConnectTimeout(TIME_OUT_LENGTH);
        urlConnection.connect();
        int responseCode = urlConnection.getResponseCode();
        if (responseCode != HttpURLConnection.HTTP_OK)
            throw new ConnectionException(urlConnection.getResponseMessage());
        return urlConnection;
    } catch (URISyntaxException | IOException ex) {
        throw new ConnectionException(ex);
    }
}

From source file:com.eyekabob.util.facebook.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 *
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 *
 * @param url - the resource to open: must be a welformed URL
 * @param method - the HTTP method to use ("GET", "POST", etc.)
 * @param params - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String/* ww  w  .jav  a  2  s . c o m*/
 * @throws MalformedURLException - if the URL format is invalid
 * @throws IOException - if a network problem occurs
 */
// COFFBR01 MODIFIED
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Util.logd("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            Object value = params.get(key);
            if (value instanceof byte[]) {
                dataparams.putByteArray(key, (byte[]) value);
            }
        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();
        os = new BufferedOutputStream(conn.getOutputStream());

        os.write(("--" + strBoundary + endLine).getBytes());
        os.write((encodePostBody(params, strBoundary)).getBytes());
        os.write((endLine + "--" + strBoundary + endLine).getBytes());

        if (!dataparams.isEmpty()) {

            for (String key : dataparams.keySet()) {
                os.write(("Content-Disposition: form-data; filename=\"" + key + "\"" + endLine).getBytes());
                os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                os.write(dataparams.getByteArray(key));
                os.write((endLine + "--" + strBoundary + endLine).getBytes());

            }
        }
        os.flush();
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}

From source file:github.srlee309.lessWrongBookCreator.scraper.PostSectionExtractor.java

public boolean downloadFileFromURL(String fetchUrl, File outputFile)
        throws IOException, FileNotFoundException, IOException {

    HttpURLConnection c;

    //save file       
    URL url = new URL(fetchUrl);
    c = (HttpURLConnection) url.openConnection();

    //set cache and request method settings  
    c.setUseCaches(false);//from w w w  . j  av a2 s .  c  om
    c.setDoOutput(false);

    //set other headers  
    c.setRequestProperty("Content-Type", "image/jpeg");
    System.out.println(c.getContentType());
    //connect  
    c.connect();

    BufferedInputStream in = new BufferedInputStream(c.getInputStream());

    OutputStream out = new BufferedOutputStream(new FileOutputStream(outputFile));
    byte[] buf = new byte[256];
    int n = 0;
    while ((n = in.read(buf)) >= 0) {
        out.write(buf, 0, n);
    }
    out.flush();
    out.close();

    return true;
}

From source file:com.liveneo.plat.web.action.DownloadAction.java

public InputStream getInputStream() throws UnsupportedEncodingException, FileNotFoundException {
    // attachment,?,??;inline,??,?
    String file = "";
    if (StringUtils.equalsIgnoreCase(loadflag, "restore")) {
        file = CreateXml.backuptarget + fileName + ".zip";
    }//from  w  w  w.  j ava2 s.co m
    if (StringUtils.equalsIgnoreCase(loadflag, "excel")) {
        file = getServletContext().getRealPath("/WEB-INF/pages/template/" + fileName);
    }
    if (StringUtils.equalsIgnoreCase(loadflag, "recording")) {
        HttpURLConnection connection = null;
        try {
            URL url = new URL(fileName);
            connection = (HttpURLConnection) url.openConnection();
            connection.connect();
            //             BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            this.getResponse().setHeader("application/x-msdownload",
                    "attachment;file=" + java.net.URLEncoder.encode(file, "UTF-8"));
            return new BufferedInputStream(connection.getInputStream());
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        //         System.out.println(getServletContext().getRealPath("/noneccrecord/ivrvoice/")+"/"+StringUtils.substringAfter(fileName, "/opt/AppServer/tomcat/webapps/noneccrecord/ivrvoice/"));

        //      file="D:/apache-tomcat-6.0.35/webapps/npworkplat/noneccrecord/ivrvoice/file1680475804236541293_ivrvoice.wav";

    }
    if (StringUtils.equalsIgnoreCase(loadflag, "license")) {
        file = fileName;
    }
    if (StringUtils.equalsIgnoreCase(loadflag, "wo")) {
        WorkOrderAction w = new WorkOrderAction();
        List<Workorder> ws = new ArrayList<Workorder>();
        ws = (List<Workorder>) this.getSession().getAttribute(sessionname);
        if (ws.size() > 0) {
            this.createWorkorderExcel(getServletContext().getRealPath("/excel/wo_info.xls"), ws,
                    "??");
        }
        file = getServletContext().getRealPath("/excel/") + "/" + fileName;
        System.out.println("file:" + file);
    }
    //
    if (StringUtils.equalsIgnoreCase(loadflag, "report")) {
        String title = this.getRequest().getParameter("title");
        title = java.net.URLDecoder.decode(title, "UTF-8");
        title = java.net.URLDecoder.decode(title, "UTF-8");
        String tvalue = this.getRequest().getParameter("tvalue");
        //
        String[] titles = title.split(",");
        //?trtd
        List<List<String>> tds = new ArrayList<List<String>>();
        String[] tr = tvalue.split(";");
        for (int j = 0; j < tr.length; j++) {
            List<String> td = new ArrayList<String>();
            String[] fields = tr[j].split(",");
            for (String v : fields) {
                if (v == null) {
                    v = "";
                }
                td.add(v);
            }
            tds.add(td);
        }
        //?excel
        ExcelUtils.exportExcel(getServletContext().getRealPath("/excel/") + "/" + fileName, titles, tds);
        file = getServletContext().getRealPath("/excel/") + "/" + fileName;
    }
    //?
    if (StringUtils.equalsIgnoreCase(loadflag, "commonexcel")) {
        String title = this.getRequest().getParameter("title");
        title = java.net.URLDecoder.decode(title, "UTF-8");
        title = java.net.URLDecoder.decode(title, "UTF-8");
        //
        String[] titles = title.split(",");
        //?trtd
        List<List<String>> tds = new ArrayList<List<String>>();
        tds = (List<List<String>>) this.getSession().getAttribute(sessionname);
        //?excel
        ExcelUtils.exportExcel(getServletContext().getRealPath("/excel/") + "/" + fileName, titles, tds);
        file = getServletContext().getRealPath("/excel/") + "/" + fileName;
    }
    this.getResponse().setHeader("application/x-msdownload",
            "attachment;file=" + java.net.URLEncoder.encode(file, "UTF-8"));
    // fileName?
    return new BufferedInputStream(new FileInputStream(file));
}

From source file:io.apiman.manager.ui.server.servlets.ApiManagerProxyServlet.java

/**
 * @see javax.servlet.http.HttpServlet#doGet(javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
 *//*from   w w  w  .j av a2 s. com*/
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    StringBuilder url = new StringBuilder();

    String endpoint = getConfig().getManagementApiEndpoint();
    if (endpoint == null) {
        endpoint = getDefaultEndpoint(req);
    }

    url.append(endpoint);
    if (!url.toString().endsWith("/")) { //$NON-NLS-1$
        url.append('/');
    }
    String pathInfo = req.getPathInfo();
    if (pathInfo != null && pathInfo.startsWith("/")) { //$NON-NLS-1$
        url.append(pathInfo.substring(1));
    } else {
        url.append(pathInfo);
    }

    String authHeaderValue = null;
    ApiAuthType authType = getConfig().getManagementApiAuthType();
    switch (authType) {
    case basic: {
        String username = getConfig().getManagementApiAuthUsername();
        String password = getConfig().getManagementApiAuthPassword();
        String encoded = base64Encode(username + ":" + password); //$NON-NLS-1$
        authHeaderValue = "Basic " + encoded; //$NON-NLS-1$
        break;
    }
    case authToken: {
        ITokenGenerator tokenGenerator = getTokenGenerator();
        BearerTokenCredentialsBean creds = tokenGenerator.generateToken(req);
        String token = creds.getToken();
        authHeaderValue = "AUTH-TOKEN " + token; //$NON-NLS-1$
        break;
    }
    case bearerToken: {
        ITokenGenerator tokenGenerator = getTokenGenerator();
        BearerTokenCredentialsBean creds = tokenGenerator.generateToken(req);
        String token = creds.getToken();
        authHeaderValue = "Bearer " + token; //$NON-NLS-1$
        break;
    }
    case samlBearerToken: {
        ITokenGenerator tokenGenerator = getTokenGenerator();
        BearerTokenCredentialsBean creds = tokenGenerator.generateToken(req);
        String token = creds.getToken();
        // TODO base64 decode the token, then re-encode it with "SAML-BEARER-TOKEN:"
        authHeaderValue = "Basic SAML-BEARER-TOKEN:" + token; //$NON-NLS-1$
        break;
    }
    }

    URL remoteUrl = new URL(url.toString());
    HttpURLConnection remoteConn = (HttpURLConnection) remoteUrl.openConnection();
    InputStream remoteIS = null;
    OutputStream responseOS = null;
    try {
        if (authHeaderValue != null) {
            remoteConn.setRequestProperty("Authorization", authHeaderValue); //$NON-NLS-1$
        }
        remoteConn.connect();
        Map<String, List<String>> headerFields = remoteConn.getHeaderFields();
        for (String headerName : headerFields.keySet()) {
            if (headerName == null) {
                continue;
            }
            if (EXCLUDE_HEADERS.contains(headerName)) {
                continue;
            }
            String headerValue = remoteConn.getHeaderField(headerName);
            resp.setHeader(headerName, headerValue);
            if (url.toString().contains("apiregistry")) { //$NON-NLS-1$
                String type = "json"; //$NON-NLS-1$
                if (url.toString().endsWith("xml")) { //$NON-NLS-1$
                    type = "xml"; //$NON-NLS-1$
                }
                resp.setHeader("Content-Disposition", "attachment; filename=api-registry." + type); //$NON-NLS-1$ //$NON-NLS-2$
            }
        }
        resp.setHeader("Cache-control", "no-cache, no-store, must-revalidate"); //$NON-NLS-1$ //$NON-NLS-2$
        remoteIS = remoteConn.getInputStream();
        responseOS = resp.getOutputStream();
        IOUtils.copy(remoteIS, responseOS);
        resp.flushBuffer();
    } catch (Exception e) {
        resp.sendError(500, e.getMessage());
    } finally {
        IOUtils.closeQuietly(responseOS);
        IOUtils.closeQuietly(remoteIS);
    }
}

From source file:com.mywork.framework.util.RemoteHttpUtil.java

/**
 *  JDK???//from ww  w.j  a  v  a  2 s .c  o  m
 */

private void fetchContentByJDKConnection(HttpServletResponse response, String contentUrl) throws IOException {

    HttpURLConnection connection = (HttpURLConnection) new URL(contentUrl).openConnection();
    // Socket
    connection.setReadTimeout(TIMEOUT_SECONDS * 1000);
    try {
        connection.connect();

        // ?
        InputStream input;
        try {
            input = connection.getInputStream();
        } catch (FileNotFoundException e) {
            response.sendError(HttpServletResponse.SC_NOT_FOUND, contentUrl + " is not found.");
            return;
        }

        // Header
        response.setContentType(connection.getContentType());
        if (connection.getContentLength() > 0) {
            response.setContentLength(connection.getContentLength());
        }

        // 
        OutputStream output = response.getOutputStream();
        try {
            // byte?InputStreamOutputStream, ?4k.
            IOUtils.copy(input, output);
            output.flush();
        } finally {
            // ??InputStream.
            IOUtils.closeQuietly(input);
        }
    } finally {
        connection.disconnect();
    }
}

From source file:com.webcohesion.ofx4j.client.net.OFXV1Connection.java

/**
 * Send the specified buffer to the specified URL.
 *
 * @param url The URL.//from  w  w  w .ja  v a 2 s  . c o  m
 * @param outBuffer The buffer.
 * @return The response.
 */
protected InputStream sendBuffer(URL url, ByteArrayOutputStream outBuffer)
        throws IOException, OFXConnectionException {
    HttpURLConnection connection = openConnection(url);
    connection.setRequestMethod("POST");
    connection.setRequestProperty("Content-Type", "application/x-ofx");
    connection.setRequestProperty("Content-Length", String.valueOf(outBuffer.size()));
    connection.setRequestProperty("Accept", "*/*, application/x-ofx");
    connection.setDoOutput(true);
    connection.connect();

    OutputStream out = connection.getOutputStream();
    out.write(outBuffer.toByteArray());

    InputStream in;
    int responseCode = connection.getResponseCode();
    if (responseCode >= 200 && responseCode < 300) {
        in = connection.getInputStream();
    } else if (responseCode >= 400 && responseCode < 500) {
        throw new OFXServerException("Error with client request: " + connection.getResponseMessage(),
                responseCode);
    } else {
        throw new OFXServerException(
                "Invalid response code from OFX server: " + connection.getResponseMessage(), responseCode);
    }

    return in;
}

From source file:com.facebook.android.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 *
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 *
 * @param url - the resource to open: must be a welformed URL
 * @param method - the HTTP method to use ("GET", "POST", etc.)
 * @param params - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String/* w  ww  . ja va 2 s .  c o  m*/
 * @throws MalformedURLException - if the URL format is invalid
 * @throws IOException - if a network problem occurs
 */
@Deprecated
public static String openUrl(String url, String method, Bundle params) throws IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Utility.logd("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            Object parameter = params.get(key);
            if (parameter instanceof byte[]) {
                dataparams.putByteArray(key, (byte[]) parameter);
            }
        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();

        os = new BufferedOutputStream(conn.getOutputStream());

        try {
            os.write(("--" + strBoundary + endLine).getBytes());
            os.write((encodePostBody(params, strBoundary)).getBytes());
            os.write((endLine + "--" + strBoundary + endLine).getBytes());

            if (!dataparams.isEmpty()) {

                for (String key : dataparams.keySet()) {
                    os.write(("Content-Disposition: form-data; filename=\"" + key + "\"" + endLine).getBytes());
                    os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                    os.write(dataparams.getByteArray(key));
                    os.write((endLine + "--" + strBoundary + endLine).getBytes());

                }
            }
            os.flush();
        } finally {
            os.close();
        }
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}

From source file:it.govpay.web.rs.Check.java

@GET
@Path("/pdd")
public Response verificaPDD(@QueryParam(value = "matchString") String matchString) {
    Logger log = LogManager.getLogger();
    try {//  ww  w.j  a va 2s .c om
        try {
            URL url = GovpayConfig.getInstance().getUrlPddVerifica();
            HttpURLConnection conn = (HttpURLConnection) url.openConnection();
            String checkResult = null;
            conn.connect();

            int responseCode = conn.getResponseCode();

            String bodyResponse = null;

            if (responseCode > 299) {
                checkResult = "Ottenuto response code [" + responseCode + "] durante la connessione a [" + url
                        + "]";
            }

            if (matchString != null) {
                checkResult = null;

                if (responseCode < 300) {
                    if (conn.getInputStream() != null) {
                        bodyResponse = new String(
                                conn.getInputStream() != null ? IOUtils.toByteArray(conn.getInputStream())
                                        : new byte[] {});
                    }
                } else {
                    if (conn.getErrorStream() != null) {
                        bodyResponse = new String(
                                conn.getErrorStream() != null ? IOUtils.toByteArray(conn.getErrorStream())
                                        : new byte[] {});
                    }
                }

                if (bodyResponse == null || !bodyResponse.contains(matchString))
                    checkResult = "Ottenuta risposta che non contiene la matchString [" + matchString
                            + "] durante la connessione a [" + url + "]";
            }

            if (checkResult != null)
                throw new Exception(checkResult);

        } catch (Exception e) {
            log.error("Errore di connessione alla PDD", e);
            throw new Exception("Errore di connessione alla PDD: " + e.getMessage());
        }

        return Response.ok().build();
    } catch (Exception e) {
        return Response.status(500).entity(e.getMessage()).build();
    }
}

From source file:com.captix.scan.social.facebook.Util.java

/**
 * Connect to an HTTP URL and return the response as a string.
 * /* w  w  w  .j a  v  a2s  .  co  m*/
 * Note that the HTTP method override is used on non-GET requests. (i.e.
 * requests are made as "POST" with method specified in the body).
 * 
 * @param url
 *            - the resource to open: must be a welformed URL
 * @param method
 *            - the HTTP method to use ("GET", "POST", etc.)
 * @param params
 *            - the query parameter for the URL (e.g. access_token=foo)
 * @return the URL contents as a String
 * @throws MalformedURLException
 *             - if the URL format is invalid
 * @throws IOException
 *             - if a network problem occurs
 */
public static String openUrl(String url, String method, Bundle params)
        throws MalformedURLException, IOException {
    // random string as boundary for multi-part http post
    String strBoundary = "3i2ndDfv2rTHiSisAbouNdArYfORhtTPEefj3q2f";
    String endLine = "\r\n";

    OutputStream os;

    if (method.equals("GET")) {
        url = url + "?" + encodeUrl(params);
    }
    Log.d("Facebook-Util", method + " URL: " + url);
    HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
    conn.setRequestProperty("User-Agent",
            System.getProperties().getProperty("http.agent") + " FacebookAndroidSDK");
    if (!method.equals("GET")) {
        Bundle dataparams = new Bundle();
        for (String key : params.keySet()) {
            if (params.getByteArray(key) != null) {
                dataparams.putByteArray(key, params.getByteArray(key));
            }
        }

        // use method override
        if (!params.containsKey("method")) {
            params.putString("method", method);
        }

        if (params.containsKey("access_token")) {
            @SuppressWarnings("deprecation")
            String decoded_token = URLDecoder.decode(params.getString("access_token"));
            params.putString("access_token", decoded_token);
        }

        conn.setRequestMethod("POST");
        conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + strBoundary);
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setRequestProperty("Connection", "Keep-Alive");
        conn.connect();
        os = new BufferedOutputStream(conn.getOutputStream());

        os.write(("--" + strBoundary + endLine).getBytes());
        os.write((encodePostBody(params, strBoundary)).getBytes());
        os.write((endLine + "--" + strBoundary + endLine).getBytes());

        if (!dataparams.isEmpty()) {

            for (String key : dataparams.keySet()) {
                os.write(("Content-Disposition: form-data; filename=\"" + key + "\"" + endLine).getBytes());
                os.write(("Content-Type: content/unknown" + endLine + endLine).getBytes());
                os.write(dataparams.getByteArray(key));
                os.write((endLine + "--" + strBoundary + endLine).getBytes());

            }
        }
        os.flush();
    }

    String response = "";
    try {
        response = read(conn.getInputStream());
    } catch (FileNotFoundException e) {
        // Error Stream contains JSON that we can parse to a FB error
        response = read(conn.getErrorStream());
    }
    return response;
}