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 {
    String urlString = "http://google.com";
    CookieManager manager = new CookieManager();
    CookieHandler.setDefault(manager);
    URL url = new URL(urlString);
    URLConnection connection = url.openConnection();
    Object obj = connection.getContent();
    url = new URL(urlString);
    connection = url.openConnection();// w  ww.j  av  a  2 s . com
    obj = connection.getContent();
    CookieStore cookieJar = manager.getCookieStore();
    List<HttpCookie> cookies = cookieJar.getCookies();
    for (HttpCookie cookie : cookies) {
        System.out.println(cookie);
    }
}

From source file:FetchCookie.java

public static void main(String args[]) throws Exception {
    String urlString = "http://java.sun.com";
    CookieManager manager = new CookieManager();
    CookieHandler.setDefault(manager);
    URL url = new URL(urlString);
    URLConnection connection = url.openConnection();
    Object obj = connection.getContent();
    url = new URL(urlString);
    connection = url.openConnection();//from  w ww.ja v a  2s.c  o  m
    obj = connection.getContent();
    CookieStore cookieJar = manager.getCookieStore();
    List<HttpCookie> cookies = cookieJar.getCookies();
    for (HttpCookie cookie : cookies) {
        System.out.println(cookie);
    }
}

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);
        System.out.println(headerName);
        System.out.println(headerValue);

        if (headerName == null && headerValue == null) {
            System.out.println("No more headers");
            break;
        }// w w  w  .j av a  2  s  .c  o  m
    }
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Date today = new Date();
    long millisecondsPerDay = 24 * 60 * 60 * 1000;

    URL u = new URL("http://www.java2s.com");
    URLConnection uc = u.openConnection();
    uc.setIfModifiedSince((new Date(today.getTime() - millisecondsPerDay)).getTime());
    InputStream in = new BufferedInputStream(uc.getInputStream());
    Reader r = new InputStreamReader(in);
    int c;//from w ww  . ja  v  a 2s.  c  o m
    while ((c = r.read()) != -1) {
        System.out.print((char) c);
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    String fullURL = args[0];/* w w  w.  j a  v  a2s. com*/
    URL u = new URL(fullURL);
    URLConnection conn = u.openConnection();
    conn.setDoInput(true);
    OutputStream theControl = conn.getOutputStream();
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(theControl));
    for (int i = 1; i < args.length; i++) {
        out.write(args[i] + "\n");
    }
    out.close();
    InputStream theData = conn.getInputStream();

    String contentType = conn.getContentType();
    if (contentType.toLowerCase().startsWith("text")) {
        BufferedReader in = new BufferedReader(new InputStreamReader(theData));
        String line;
        while ((line = in.readLine()) != null) {
            System.out.println(line);
        }
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    String fullURL = args[0];// w  w  w.  ja  v  a  2s .c o m
    URL u = new URL(fullURL);
    URLConnection conn = u.openConnection();
    conn.setDoOutput(true);
    OutputStream theControl = conn.getOutputStream();
    BufferedWriter out = new BufferedWriter(new OutputStreamWriter(theControl));
    for (int i = 1; i < args.length; i++) {
        out.write(args[i] + "\n");
    }
    out.close();
    InputStream theData = conn.getInputStream();

    String contentType = conn.getContentType();
    if (contentType.toLowerCase().startsWith("text")) {
        BufferedReader in = new BufferedReader(new InputStreamReader(theData));
        String line;
        while ((line = in.readLine()) != null) {
            System.out.println(line);
        }
    }
}

From source file:Main.java

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

    int s = httpCon.getHeaderFieldInt("intKey", 1);

}

From source file:Main.java

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

    long s = httpCon.getHeaderFieldLong("longKey", 1L);

}

From source file:Main.java

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

    System.out.println(URLConnection.guessContentTypeFromStream(httpCon.getInputStream()));

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    URL url = new URL("jar:file:/c://my.jar!/");
    JarURLConnection conn = (JarURLConnection) url.openConnection();
    JarFile jarfile = conn.getJarFile();
}