Example usage for java.net HttpURLConnection getInputStream

List of usage examples for java.net HttpURLConnection getInputStream

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Introduction

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

Prototype

public InputStream getInputStream() throws IOException

Source Link

Document

Returns an input stream that reads from this open connection.

Usage

From source file:edu.xjtu.qxcamerabridge.LiveviewImageExtractor.java

private static InputStream getLiveviewInputStream(String liveviewURL)
        throws MalformedURLException, IOException {
    URL url = new URL(liveviewURL);
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestMethod("GET");
    connection.setReadTimeout(2000);//from  w ww  .  j av  a2s  .co m
    connection.connect();

    if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
        return connection.getInputStream();
    }
    return null;
}

From source file:com.rumblefish.friendlymusic.api.WebRequest.java

public static Bitmap getBitmapAtURL(URL url) {
    InputStream inStream = null;//from   w  w  w . j a  va2 s . c o  m
    HttpURLConnection _conn = null;
    Bitmap bitmap = null;
    try {

        _conn = (HttpURLConnection) url.openConnection();
        _conn.setDoInput(true);
        _conn.connect();
        inStream = _conn.getInputStream();
        bitmap = BitmapFactory.decodeStream(inStream);
        inStream.close();
        _conn.disconnect();
        inStream = null;
        _conn = null;
    } catch (Exception ex) {
        // nothing
    }
    if (inStream != null) {
        try {
            inStream.close();
        } catch (Exception ex) {
        }
    }
    if (_conn != null) {
        _conn.disconnect();
    }

    return bitmap;
}

From source file:com.oracle.jes.samples.hellostorage.IptoGeo.java

public static String getCurrentIPAddress2() throws MalformedURLException, IOException {

    HttpURLConnection conn = (HttpURLConnection) (new URL("http://ifconfig.me/ip").openConnection());

    //1  HttpClient httpclient = HttpClientBuilder.create().build();
    //1          HttpGet g1 = new HttpGet("http://ifconfig.me/ip");
    //1            HttpResponse res = httpclient.execute(g1);

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

    //1BufferedReader reader = new BufferedReader(new InputStreamReader(res.getEntity().getContent()));

    String response = reader.readLine();

    if (conn.getResponseCode() == 200) {
        return response.trim();
    } else {//from  ww  w.j  a v a 2  s  .c  o  m
        return null;
    }
    //1      return response;
}

From source file:org.coffeeking.controller.service.util.ConnectedCupServiceUtils.java

public static String readResponseFromGetRequest(HttpURLConnection httpConnection)
        throws DeviceManagementException {
    BufferedReader bufferedReader;
    try {/*ww  w .j a v  a  2  s  .co  m*/
        bufferedReader = new BufferedReader(new InputStreamReader(httpConnection.getInputStream()));
    } catch (IOException e) {
        String errorMsg = "There is an issue with connecting the reader to the input stream at: "
                + httpConnection.getURL();
        log.error(errorMsg);
        throw new DeviceManagementException(errorMsg, e);
    }

    String responseLine;
    StringBuilder completeResponse = new StringBuilder();

    try {
        while ((responseLine = bufferedReader.readLine()) != null) {
            completeResponse.append(responseLine);
        }
    } catch (IOException e) {
        String errorMsg = "Error occured whilst trying read from the connection stream at: "
                + httpConnection.getURL();
        log.error(errorMsg);
        throw new DeviceManagementException(errorMsg, e);
    }
    try {
        bufferedReader.close();
    } catch (IOException e) {
        log.error("Could not succesfully close the bufferedReader to the connection at: "
                + httpConnection.getURL());
    }

    return completeResponse.toString();
}

From source file:com.hackerati.android.user_sdk.volley.HHurlStack.java

/**
 * Initializes an {@link HttpEntity} from the given
 * {@link HttpURLConnection}./*from  w  ww. j  a v a2  s. c  o  m*/
 * 
 * @param connection
 * @return an HttpEntity populated with data from <code>connection</code>.
 */
private static HttpEntity entityFromConnection(final HttpURLConnection connection) {
    final BasicHttpEntity entity = new BasicHttpEntity();
    InputStream inputStream;
    try {
        inputStream = connection.getInputStream();
    } catch (final IOException ioe) {
        inputStream = connection.getErrorStream();
    }
    entity.setContent(inputStream);
    entity.setContentLength(connection.getContentLength());
    entity.setContentEncoding(connection.getContentEncoding());
    entity.setContentType(connection.getContentType());
    return entity;
}

From source file:net.ftb.util.AppUtils.java

public static String ConnectionToString(URLConnection c) {
    boolean failed = false;
    HttpURLConnection conn = (HttpURLConnection) c;
    try {//  w ww. jav a 2s . c  o m
        if (conn.getErrorStream() != null) {
            return IOUtils.toString(conn.getErrorStream(), Charsets.UTF_8);
        } else if (conn.getInputStream() != null) {
            return IOUtils.toString(conn.getInputStream(), Charsets.UTF_8);
        } else {
            return null;
        }
    } catch (FileNotFoundException e) {
        // ignore this
    } catch (IOException e) {
        failed = true;
    } catch (Exception e) {
        failed = true;
        Logger.logDebug("failed", e);
    }

    if (failed) {
        try {
            return IOUtils.toString(c.getInputStream(), Charsets.UTF_8);
        } catch (Exception e) {
            Logger.logDebug("failed", e);
        }
    }

    return null;
}

From source file:cit360.sandbox.BackEndMenu.java

public static final void urltest() {
    URL url;/*from w  w  w.j av a 2  s  . c  o m*/
    HttpURLConnection urlConnection = null;
    try {
        url = new URL("http://marvelcomicsuniverse.com");

        urlConnection = (HttpURLConnection) url.openConnection();

        InputStream in = urlConnection.getInputStream();

        InputStreamReader isw = new InputStreamReader(in);

        int data = isw.read();
        while (data != -1) {
            char current = (char) data;
            data = isw.read();
            System.out.print(current);
        }
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        try {
            urlConnection.disconnect();
        } catch (Exception e) {
            e.printStackTrace(); //If you want further info on failure...
        }
    }
}

From source file:controllers.IndexServlet.java

private static void Convert(HttpServletRequest request, HttpServletResponse response, PrintWriter writer) {
    response.setContentType("text/plain");

    try {/*from  ww  w .j av a  2  s  .c  o  m*/
        String fileName = request.getParameter("filename");
        String fileUri = DocumentManager.GetFileUri(fileName);
        String fileExt = FileUtility.GetFileExtension(fileName);
        FileType fileType = FileUtility.GetFileType(fileName);
        String internalFileExt = DocumentManager.GetInternalExtension(fileType);

        if (DocumentManager.GetConvertExts().contains(fileExt)) {
            String key = ServiceConverter.GenerateRevisionId(fileUri);

            Pair<Integer, String> res = ServiceConverter.GetConvertedUri(fileUri, fileExt, internalFileExt, key,
                    true);

            int result = res.getKey();
            String newFileUri = res.getValue();

            if (result != 100) {
                writer.write("{ \"step\" : \"" + result + "\", \"filename\" : \"" + fileName + "\"}");
                return;
            }

            String correctName = DocumentManager
                    .GetCorrectName(FileUtility.GetFileNameWithoutExtension(fileName) + internalFileExt);

            URL url = new URL(newFileUri);
            java.net.HttpURLConnection connection = (java.net.HttpURLConnection) url.openConnection();
            InputStream stream = connection.getInputStream();

            if (stream == null) {
                throw new Exception("Stream is null");
            }

            File convertedFile = new File(DocumentManager.StoragePath(correctName, null));
            try (FileOutputStream out = new FileOutputStream(convertedFile)) {
                int read;
                final byte[] bytes = new byte[1024];
                while ((read = stream.read(bytes)) != -1) {
                    out.write(bytes, 0, read);
                }

                out.flush();
            }

            connection.disconnect();

            //remove source file ?
            //File sourceFile = new File(DocumentManager.StoragePath(fileName, null));
            //sourceFile.delete();

            fileName = correctName;
        }

        writer.write("{ \"filename\" : \"" + fileName + "\"}");

    } catch (Exception ex) {
        writer.write("{ \"error\": \"" + ex.getMessage() + "\"}");
    }
}

From source file:com.mopaas_mobile.http.BaseHttpRequester.java

public static String doGETwithHeader(String urlstr, String token, List<BasicNameValuePair> params)
        throws IOException {
    String result = null;//from  w ww  .j  av a2 s. co  m
    String content = "";
    for (int i = 0; i < params.size(); i++) {
        content = content + "&" + URLEncoder.encode(((NameValuePair) params.get(i)).getName(), "UTF-8") + "="
                + URLEncoder.encode(((NameValuePair) params.get(i)).getValue(), "UTF-8");
    }
    URL url = new URL(urlstr + "?" + content.substring(1));
    HttpURLConnection connection = (HttpURLConnection) url.openConnection();
    connection.setRequestProperty("token", token);
    connection.setDoInput(true);
    connection.setRequestMethod("GET");
    connection.setUseCaches(false);
    connection.connect();
    InputStream is = connection.getInputStream();
    BufferedReader br = new BufferedReader(new InputStreamReader(is, "UTF-8"));

    StringBuffer b = new StringBuffer();
    int ch;
    while ((ch = br.read()) != -1) {
        b.append((char) ch);
    }
    result = b.toString().trim();
    connection.disconnect();
    return result;
}

From source file:GoogleAPI.java

/**
 * Forms an HTTP request, sends it using GET method and returns the result of the request as a JSONObject.
 * // ww w .j a va 2s  . c o m
 * @param url The URL to query for a JSONObject.
 * @return The translated String.
 * @throws Exception on error.
 */
protected static JSONObject retrieveJSON(final URL url) throws Exception {
    try {
        final HttpURLConnection uc = (HttpURLConnection) url.openConnection();
        uc.setRequestProperty("referer", referrer);
        uc.setRequestMethod("GET");
        uc.setDoOutput(true);

        try {
            final String result = inputStreamToString(uc.getInputStream());

            return new JSONObject(result);
        } finally { // http://java.sun.com/j2se/1.5.0/docs/guide/net/http-keepalive.html
            uc.getInputStream().close();
            if (uc.getErrorStream() != null) {
                uc.getErrorStream().close();
            }
        }
    } catch (Exception ex) {
        throw new Exception("[google-api-translate-java] Error retrieving translation.", ex);
    }
}