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:Main.java

public static void main(String args[]) throws Exception {

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();

    uc.setIfModifiedSince(1000);//from  w  w  w .  ja v a 2 s. co  m
    System.out.println(uc.getIfModifiedSince());
}

From source file:Main.java

public static void main(String args[]) throws Exception {

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();

    uc.setConnectTimeout(1000);//from  ww w .j av  a  2  s. com
    System.out.println(uc.getConnectTimeout());
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://www.x.com");
    URLConnection urlc = url.openConnection();
    urlc.setRequestProperty("User-Agent", "Mozilla 5.0 (Windows; U; " + "Windows NT 5.1; en-US; rv:1.8.0.11) ");

    InputStream is = urlc.getInputStream();
    int c;/*www.  j  a va  2 s .  c  o m*/
    while ((c = is.read()) != -1)
        System.out.print((char) c);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    HttpURLConnection.setFollowRedirects(false);

    URL url = new URL("http://hostname:80");
    URLConnection conn = url.openConnection();

    HttpURLConnection httpConn = (HttpURLConnection) conn;
    httpConn.setInstanceFollowRedirects(false);

    conn.connect();/*from   w  ww  .  j a  v a  2s  .  c  o  m*/
}

From source file:Main.java

public static void main(String args[]) throws Exception {

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();
    System.out.println("Content-type: " + uc.getContentType());
    System.out.println("Content-encoding: " + uc.getContentEncoding());
    System.out.println("Date: " + new Date(uc.getDate()));
    System.out.println("Last modified: " + new Date(uc.getLastModified()));
    System.out.println("Expiration date: " + new Date(uc.getExpiration()));
    System.out.println("Content-length: " + uc.getContentLength());
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL yahoo = new URL("http://www.yahoo.com/");
    URLConnection yc = yahoo.openConnection();
    BufferedReader in = new BufferedReader(new InputStreamReader(yc.getInputStream()));
    String inputLine;//  ww  w . j  a  v  a  2s.c  om

    while ((inputLine = in.readLine()) != null)
        System.out.println(inputLine);
    in.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();
    uc.connect();//from   www  . j a  va 2s  .c o m
    System.out.println("Content-type: " + uc.getContentType());
    System.out.println("Content-encoding: " + uc.getContentEncoding());
    System.out.println("Date: " + new Date(uc.getDate()));
    System.out.println("Last modified: " + new Date(uc.getLastModified()));
    System.out.println("Expiration date: " + new Date(uc.getExpiration()));
    System.out.println("Content-length: " + uc.getContentLength());
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    int size;/* ww  w .  j a  v  a2  s  .co  m*/
    URL url = new URL("http://www.server.com");
    URLConnection conn = url.openConnection();
    size = conn.getContentLength();
    if (size < 0)
        System.out.println("Could not determine file size.");
    else
        System.out.println(size);
    conn.getInputStream().close();

}

From source file:MainClass.java

public static void main(String args[]) {
    try {/* w  w w  .j a va 2 s .c o  m*/
        URL u = new URL("http://www.java2s.com");
        URLConnection uc = u.openConnection();
        System.out.println("Content-encoding: " + uc.getContentEncoding());
    } catch (MalformedURLException e) {
        System.err.println("not a URL I understand");
    } catch (IOException e) {
        System.err.println(e);
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    URL url = new URL("http://java2s.com");
    URLConnection conn = url.openConnection();

    for (int i = 0;; i++) {
        String headerName = conn.getHeaderFieldKey(i);
        String headerValue = conn.getHeaderField(i);
        System.out.println(headerName);
        System.out.println(headerValue);

        if (headerName == null && headerValue == null) {
            System.out.println("No more headers");
            break;
        }/*from ww w.ja va 2 s. c  o  m*/
    }
}