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:connector.ISConnector.java

public static JSONObject processRequest(String servlet, byte[] query) {
    JSONObject response = null;/*from   ww  w . ja v  a2s . c o  m*/
    if (servlet != null && !servlet.startsWith("/"))
        servlet = "/" + servlet;
    try {
        // Establish HTTP connection with Identity Service
        URL url = new URL(CONTEXT_PATH + servlet);
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.setRequestMethod("POST");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        conn.setUseCaches(false);
        conn.setAllowUserInteraction(false);
        conn.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");

        //Create the form content
        try (OutputStream out = conn.getOutputStream()) {
            out.write(query);
            out.close();
        }

        // Buffer the result into a string
        BufferedReader rd = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        StringBuilder sb = new StringBuilder();
        String line;
        while ((line = rd.readLine()) != null) {
            sb.append(line);
        }

        rd.close();
        conn.disconnect();
        response = (JSONObject) new JSONParser().parse(sb.toString());

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

    return response;
}

---

From source file:localSPs.SpiderOakAPI.java

public static String connectWithREST(String url, String method)
        throws IOException, ProtocolException, MalformedURLException {
    String newURL = "";
    URL obj = new URL(url);
    HttpURLConnection con = (HttpURLConnection) obj.openConnection();
    // Connect with a REST Method: GET, DELETE, PUT
    con.setRequestMethod(method);/*from  w w  w .  ja  v  a 2 s.c  o m*/
    //add request header
    con.setReadTimeout(20000);
    con.setConnectTimeout(20000);
    con.setRequestProperty("User-Agent", "Mozilla/5.0");
    if (method.equals(DELETE) || method.equals(PUT))
        con.addRequestProperty("Authorization", "Base M5XWW5JNONZWUMSANBXXI3LBNFWC4Y3PNU5E2NDSNFXTEMZVJ5QWW");

    int responseCode = con.getResponseCode();
    // Read response
    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String inputLine;
    StringBuffer response = new StringBuffer();
    while ((inputLine = in.readLine()) != null) {
        response.append(inputLine);
    }
    in.close();
    newURL = response.toString();
    return newURL;
}

---

From source file:Main.java

public static void DownloadFile(String u) {
    try {/*  w ww .java 2 s .co m*/
        Logd(TAG, "Starting download of: " + u);
        URL url = new URL(u);
        HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
        urlConnection.setRequestMethod("GET");
        urlConnection.setDoOutput(true);
        urlConnection.connect();
        //File storageDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
        checkStorageDir();
        File storageDir = new File(
                Environment.getExternalStorageDirectory() + "/Android/data/com.nowsci.odm/.storage");
        File file = new File(storageDir, getFileName(u));
        Logd(TAG, "Storage directory: " + storageDir.toString());
        Logd(TAG, "File name: " + file.toString());
        FileOutputStream fileOutput = new FileOutputStream(file);
        InputStream inputStream = urlConnection.getInputStream();
        byte[] buffer = new byte[1024];
        int bufferLength = 0;
        while ((bufferLength = inputStream.read(buffer)) > 0) {
            fileOutput.write(buffer, 0, bufferLength);
        }
        fileOutput.close();
        Logd(TAG, "File written");
    } catch (ProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }
}

---

From source file:com.fluidops.iwb.cms.util.OpenUp.java

public static List<Statement> extract(String text, URI uri) throws IOException {
    List<Statement> res = new ArrayList<Statement>();
    String textEncoded = URLEncoder.encode(text, "UTF-8");

    String send = "format=rdfxml&text=" + textEncoded;

    // service limit is 10000 chars
    if (mode() == Mode.demo)
        send = stripToDemoLimit(send);//from   w ww.j ava  2  s. c  o m

    // GET only works for smaller texts
    // URL url = new URL("http://openup.tso.co.uk/des/enriched-text?text=" + textEncoded + "&format=rdfxml");

    URL url = new URL(getConfig().getOpenUpUrl());
    URLConnection conn = url.openConnection();
    conn.setDoOutput(true);
    IOUtils.write(send, conn.getOutputStream());
    Repository repository = new SailRepository(new MemoryStore());
    try {
        repository.initialize();
        RepositoryConnection con = repository.getConnection();
        con.add(conn.getInputStream(), uri.stringValue(), RDFFormat.RDFXML);
        RepositoryResult<Statement> iter = con.getStatements(null, null, null, false);
        while (iter.hasNext()) {
            Statement s = iter.next();
            res.add(s);
        }
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    return res;
}

---

From source file:Main.java

private static InputStream getInputStreamFromUrl_V9(Context paramContext, String paramString) {
    if (confirmDownload(paramContext, paramString)) {
        try {// w  w w.j  a  va2  s .com

            URL localURL = new URL(paramString);
            HttpURLConnection localHttpURLConnection2 = (HttpURLConnection) localURL.openConnection();
            localHttpURLConnection2.setRequestProperty("Accept-Charset", "UTF-8");
            localHttpURLConnection2.setReadTimeout(30000);
            localHttpURLConnection2.setConnectTimeout(30000);
            localHttpURLConnection2.setRequestMethod("GET");
            localHttpURLConnection2.setDoInput(true);
            localHttpURLConnection2.connect();
            return localHttpURLConnection2.getInputStream();

        } catch (Throwable localThrowable) {

            localThrowable.printStackTrace();
            return null;

        }
    } else {
        return null;
    }
}

---

From source file:org.liberty.android.fantastischmemo.downloader.DownloaderUtils.java

public static File downloadFile(String url, String savedPath) throws IOException {
    File outFile = new File(savedPath);
    OutputStream out;/*from   w ww  .j  a  va 2s  .  com*/

    // Delete and backup if the file exists
    AMUtil.deleteFileWithBackup(savedPath);

    // Create the dir if necessary
    File parentDir = outFile.getParentFile();
    parentDir.mkdirs();

    outFile.createNewFile();
    out = new FileOutputStream(outFile);

    Log.i(TAG, "URL to download is: " + url);
    URL myURL = new URL(url);
    URLConnection ucon = myURL.openConnection();
    byte[] buf = new byte[8192];

    InputStream is = ucon.getInputStream();
    BufferedInputStream bis = new BufferedInputStream(is, 8192);
    int len = 0;
    while ((len = bis.read(buf)) != -1) {
        out.write(buf, 0, len);
    }
    out.close();
    is.close();
    return outFile;
}

---

From source file:Main.java

public static Document getUrlAsDocument(String urlAsString, int timeout) throws Exception {
    URL url = new URL(urlAsString);
    //using proxy may increase latency
    HttpURLConnection hConn = (HttpURLConnection) url.openConnection();
    hConn.setReadTimeout(timeout);/*from   w  ww  .  j a  v a  2s. co  m*/
    hConn.setConnectTimeout(timeout);
    //        hConn.setRequestProperty("Accept-Encoding", "gzip, deflate");

    InputStream is = hConn.getInputStream();
    //        if ("gzip".equals(hConn.getContentEncoding()))
    //            is = new GZIPInputStream(is);
    return newDocumentBuilder().parse(is);
}

---

From source file:Main.java

/**
 *
 * @param url - String//from   w w  w. j  a  v a  2  s.c  o  m
 * @param reqParam refer POST method
 * @param accessToken - String
 * @return ArrayList<String> 0: responseBody
 *                          1: responseCode
 */
public static ArrayList<String> getResponse(String url, String reqParam, String accessToken) {
    StringBuilder response = null;
    StringBuilder urlBuilder = null;
    BufferedReader in = null;
    HttpsURLConnection con = null;
    ArrayList<String> responseList = new ArrayList<String>();
    int responseCode = -1;
    try {
        response = new StringBuilder();

        urlBuilder = new StringBuilder();
        urlBuilder.append(url);
        urlBuilder.append("?").append(reqParam);
        urlBuilder.append("&access_token=").append(accessToken);

        URL urlObj = new URL(urlBuilder.toString());

        con = (HttpsURLConnection) urlObj.openConnection();
        con.setRequestMethod("GET");
        con.setDoInput(true);
        con.setDoOutput(false);

        con.setRequestProperty("Authorization: Bearer", accessToken);
        in = new BufferedReader(new InputStreamReader(con.getInputStream()));
        responseCode = con.getResponseCode();
        String inputLine = "";
        while ((inputLine = in.readLine()) != null) {
            response.append(inputLine);
        }

    } catch (Exception e) {
        in = new BufferedReader(new InputStreamReader(con.getErrorStream()));
        String inputLine = "";

        try {
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
        } catch (IOException e1) {
            // TODO Auto-generated catch block
            e1.printStackTrace();
        }
        if (responseCode == -1) {

        } else {

            System.out.println(response.toString());
        }
    }

    finally {
        try {
            in.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    responseList.add(response.toString());
    responseList.add(String.valueOf(responseCode));
    return responseList;

}

---

From source file:com.apps.android.viish.encyclolpedia.tools.ImageManager.java

private static void downloadAndSaveImageWithPrefix(Context context, String prefix, String fileName)
        throws IOException {
    String stringUrl = BASE_URL + prefix + fileName;
    URL url = new URL(stringUrl);
    HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
    InputStream is = urlConnection.getInputStream();
    BufferedInputStream bis = new BufferedInputStream(is);
    FileOutputStream fos = getFileOutputStream(context, fileName);

    ByteArrayBuffer baf = new ByteArrayBuffer(65535);
    int current = 0;
    while ((current = bis.read()) != -1) {
        baf.append((byte) current);
    }//  www  .  java 2 s  .  c  o m
    fos.write(baf.toByteArray());
    fos.close();
    bis.close();
}

---

From source file:com.jlgranda.fede.ejb.url.reader.FacturaElectronicaURLReader.java

/**
 * Leer contenido texto UTF-8 desde el URL dado
 *
 * @param _url el URL a leer//w  w w .j  a  v a 2s.  c o m
 * @return el contenido del URL como String
 * @throws Exception
 */
public static String read(String _url) throws Exception {

    StringBuilder b = new StringBuilder();
    try {

        //logger.info("HTTP request: " + _url);
        final URL url = new URL(_url);
        final HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setRequestProperty("User-Agent",
                "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.65 Safari/537.31");
        b.append(slurp(connection.getInputStream(), 1024));

        connection.disconnect();

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

    return b.toString();

}

---

• «
• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• »