Example usage for twitter4j Twitter getOAuthRequestToken

Introduction

In this page you can find the example usage for twitter4j Twitter getOAuthRequestToken.

Prototype

RequestToken getOAuthRequestToken(String callbackURL) throws TwitterException;

Source Link

Document

Retrieves a request token

Usage

From source file:Servlet.TwitterAuthServlet.java

License:Apache License

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
 *
 * @param request servlet request/* w  w  w  . j  av a 2 s.c o m*/
 * @param response servlet response
 * @throws ServletException if a servlet-specific error occurs
 * @throws IOException if an I/O error occurs
 */
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setContentType("text/html;charset=UTF-8");

    ConfigurationBuilder cb = new ConfigurationBuilder();

    cb.setOAuthConsumerKey(TwitterApp.CONSUMER_KEY);
    cb.setOAuthConsumerSecret(TwitterApp.CONSUMER_SECRET);

    Twitter twitter = new TwitterFactory(cb.build()).getInstance();
    request.getSession().setAttribute("twitter", twitter);
    try {
        StringBuffer callbackURL = request.getRequestURL();
        int index = callbackURL.lastIndexOf("/");
        callbackURL.replace(index, callbackURL.length(), "").append("/callback");

        System.out.println(callbackURL);

        RequestToken requestToken = twitter.getOAuthRequestToken(callbackURL.toString());

        System.out.println("Authentication " + requestToken.getAuthenticationURL());
        System.out.println("Authorization " + requestToken.getAuthorizationURL());

        request.getSession().setAttribute("requestToken", requestToken);
        response.sendRedirect(requestToken.getAuthenticationURL());
    } catch (TwitterException e) {
        throw new ServletException(e);
    }
}

From source file:servlets.TwitterConnectionServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
    System.out.println("Start TwitterConnectionServlet.doGet");

    ConfigurationBuilder builder = new ConfigurationBuilder();
    builder.setOAuthConsumerKey(UtilTwitter.CONSUMER_KEY);
    builder.setOAuthConsumerSecret(UtilTwitter.CONSUMER_SECRET);

    TwitterFactory factory = new TwitterFactory(builder.build());
    Twitter twitter = factory.getInstance();

    RequestToken requestToken;//from   w  w w. j  a  v a  2s  .c om

    try {
        requestToken = twitter.getOAuthRequestToken(UtilTwitter.CALL_BACK_URL);
        String url = requestToken.getAuthenticationURL();

        System.out.println("End TwitterConnectionServlet.doGet");
        response.sendRedirect(url);
    } catch (TwitterException e) {
        e.printStackTrace();
    }
}