Examples of java.net.URLConnection.connect()

java.net.URLConnection.connect()
Opens a communications link to the resource referenced by this URL, if such a connection has not already been established.
If the connect method is called when the connection has already been opened (indicated by the connected field having the value true), the call is ignored.
URLConnection objects go through two phases: first they are created, then they are connected. After being created, and before being connected, various options can be specified (e.g., doInput and UseCaches). After connecting, it is an error to try to set them. Operations that depend on being connected, like getContentLength, will implicitly perform the connection, if necessary. @throws SocketTimeoutException if the timeout expires beforethe connection can be established @exception IOException if an I/O error occurs while opening theconnection. @see java.net.URLConnection#connected @see #getConnectTimeout() @see #setConnectTimeout(int)

            
            // create the connection to the URL
            URLConnection conn = url.openConnection();


            // establish the connection to the URL                          
            conn.connect();
            
            // get the stream from the commection
            inSR = new InputStreamReader(conn.getInputStream());
            
            // place the stream into a buffered reader

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        + "&port=" + port
        + "&uploaded=0&downloaded=0&left=0&numwant=50&no_peer_id=1&compact=1";
      //System.out.println(strUrl);
      URL url = new URL(strUrl);
      URLConnection con = url.openConnection();
      con.connect();
      con.getContent();
    } catch(Exception e) {
      e.printStackTrace();
    }    
  }

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        urlconnection = urlList[i].openConnection();


        if (urlconnection instanceof HttpURLConnection) {
          urlconnection.setRequestProperty("Cache-Control", "no-cache");
          urlconnection.connect();
            }


        String currentFile = getFileName(urlList[i]);
        InputStream inputstream = getJarInputStream(currentFile, urlconnection);
        FileOutputStream fos = new FileOutputStream(path + currentFile);

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        URLConnection connection = url.openConnection();
        
        connection.setConnectTimeout( 10000 );
        
        connection.connect();
        
        return( null );
        
      }catch( Throwable f ){

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     *         closed
     */
    public void setImageURL(URL imageURL) throws NullPointerException, IOException, IllegalStateException {
        checkVisible();
        URLConnection connection = imageURL.openConnection();
        connection.connect();
        int length = connection.getContentLength();
        java.io.InputStream stream = connection.getInputStream();
        byte[] buf = new byte[length];
        int off = 0;
        while(true) {

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        throws IOException {
        try {
            URL url = new URL(URL_BIBTEX);
            URLConnection conn = url.openConnection();
            conn.setRequestProperty("Cookie", ticket + "; " + citations);
            conn.connect();


            BibtexParser parser = new BibtexParser(new BufferedReader(new InputStreamReader(conn
                .getInputStream())));
            return parser.parse().getDatabase().getEntries();
        } catch (MalformedURLException e) {

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                System.out.println(MessageFormat.format(Messages.getString("VPNLauncher.sysout.sendingSync"), new Object[] { url })); //$NON-NLS-1$


                URLConnection con = url.openConnection();
                setReadTimeout(con, timeout);


                con.connect();
                System.out.println(MessageFormat.format(Messages.getString("VPNLauncher.sysout.connectedTo"), new Object[] { url } )); //$NON-NLS-1$


                XMLElement result = new XMLElement();
                result.parseFromReader(new InputStreamReader(con.getInputStream()));

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      if (log.isInfoEnabled())
        log.info("Downloading extension from " + downloadURL.toExternalForm());
      URLConnection con = downloadURL.openConnection();
      con.setConnectTimeout(CONNECT_TIMEOUT);
      con.setReadTimeout(READ_TIMEOUT);
      con.connect();
      return con;
    } else {
      throw new IOException("No valid download location for " + id);
    }
  }

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            con.setRequestProperty("Accept-Encoding", "gzip, deflate"); //$NON-NLS-1$ //$NON-NLS-2$
            con.setRequestProperty("Accept-Language", "en-gb"); //$NON-NLS-1$ //$NON-NLS-2$
            con.setRequestProperty("Connection", "Keep-Alive"); //$NON-NLS-1$ //$NON-NLS-2$
            con.setRequestProperty("User-Agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)"); //$NON-NLS-1$ //$NON-NLS-2$


            con.connect();


            InputStream in = con.getInputStream();
            int read;


            while ((read = in.read()) > -1) {

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    if (url == null) {
      throw new ContainerException(400, "Invalid URL: "+pathinfo);
    }    
    try {
      URLConnection conn = url.openConnection();
      conn.connect();
      if (conn instanceof HttpURLConnection) {
        int code = ((HttpURLConnection)conn).getResponseCode();
        if (code != 200) {
          throw new ContainerException(code, "Resource: "+url);
        }

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