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:com.manning.blogapps.chapter10.examples.AuthGetJava.java

public static void main(String[] args) throws Exception {
    if (args.length < 3) {
        System.out.println("USAGE: authget <username> <password> <url>");
        System.exit(-1);//from   w w w.  j av a2 s.  c o  m
    }
    String credentials = args[0] + ":" + args[1];

    URL url = new URL(args[2]);
    URLConnection conn = url.openConnection();

    conn.setRequestProperty("Authorization",
            "Basic " + new String(Base64.encodeBase64(credentials.getBytes())));

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

    String s = null;
    while ((s = in.readLine()) != null) {
        System.out.println(s);
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

    long date = httpCon.getDate();
    if (date == 0)
        System.out.println("No date information.");
    else//from  w  w w  .j a v a  2s  .c  o  m
        System.out.println("Date: " + new Date(date));

}

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

    InputStream inStrm = httpCon.getInputStream();
    System.out.println("\nContent at " + url);
    int ch;//from w  w w .java2 s.  c o m
    while (((ch = inStrm.read()) != -1))
        System.out.print((char) ch);
    inStrm.close();
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

    long date = httpCon.getLastModified();
    if (date == 0)
        System.out.println("No last-modified information.");
    else//from   w ww  .  java2s . co  m
        System.out.println("Last-Modified: " + new Date(date));

}

From source file:Main.java

public static void main(String args[]) throws Exception {
    URL url = new URL("http://www.google.com");
    HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();

    long date = httpCon.getExpiration();
    if (date == 0)
        System.out.println("No expiration information.");
    else//from  w  w w .j a  v  a  2  s  .c  o  m
        System.out.println("Expires: " + new Date(date));

}

From source file:Main.java

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

    URL url = new URL("https://www.server.com");
    HttpURLConnection con = (HttpURLConnection) url.openConnection();

    BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
    String inputLine;//from  w  w w  .  j a v  a 2  s. co m

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

From source file:Main.java

public static void main(String[] argv) throws Exception {
    HTMLDocument doc = new HTMLDocument() {
        public HTMLEditorKit.ParserCallback getReader(int pos) {
            return new HTMLEditorKit.ParserCallback() {
                public void handleText(char[] data, int pos) {
                    System.out.println(data);
                }/*from   www  . j  a  va2  s.  c o  m*/
            };
        }
    };

    URL url = new URI("http://www.google.com").toURL();
    URLConnection conn = url.openConnection();
    Reader rd = new InputStreamReader(conn.getInputStream());

    EditorKit kit = new HTMLEditorKit();
    kit.read(rd, doc, 0);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    URL url = new URL("http://www.google.com/index.html");
    URLConnection connection = url.openConnection();

    Map responseMap = connection.getHeaderFields();
    for (Iterator iterator = responseMap.keySet().iterator(); iterator.hasNext();) {
        String key = (String) iterator.next();
        System.out.println(key + " = ");

        List values = (List) responseMap.get(key);
        for (int i = 0; i < values.size(); i++) {
            Object o = values.get(i);
            System.out.println(o + ", ");
        }//from  ww  w.j  a v a 2 s . com
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Properties systemSettings = System.getProperties();
    systemSettings.put("proxySet", "true");
    systemSettings.put("http.proxyHost", "proxy.mycompany.local");
    systemSettings.put("http.proxyPort", "80");

    URL u = new URL("http://www.google.com");
    HttpURLConnection con = (HttpURLConnection) u.openConnection();
    BASE64Encoder encoder = new BASE64Encoder();
    String encodedUserPwd = encoder.encode("domain\\username:password".getBytes());
    con.setRequestProperty("Proxy-Authorization", "Basic " + encodedUserPwd);
    con.setRequestMethod("HEAD");
    System.out.println(con.getResponseCode() + " : " + con.getResponseMessage());
    System.out.println(con.getResponseCode() == HttpURLConnection.HTTP_OK);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    URL url = new URL("http://hostname:80");
    URLConnection conn = url.openConnection();

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

        if (headerName == null && headerValue == null) {
            break;
        }//from   ww w  .j  av  a  2s  .  c o m
        if ("Set-Cookie".equalsIgnoreCase(headerName)) {
            String[] fields = headerValue.split(";\\s*");
            for (int j = 1; j < fields.length; j++) {
                if ("secure".equalsIgnoreCase(fields[j])) {
                    System.out.println("secure=true");
                } else if (fields[j].indexOf('=') > 0) {
                    String[] f = fields[j].split("=");
                    if ("expires".equalsIgnoreCase(f[0])) {
                        System.out.println("expires" + f[1]);
                    } else if ("domain".equalsIgnoreCase(f[0])) {
                        System.out.println("domain" + f[1]);
                    } else if ("path".equalsIgnoreCase(f[0])) {
                        System.out.println("path" + f[1]);
                    }
                }
            }
        }
    }
}