Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package Origin; import java.io.IOException; import static java.net.URLEncoder.encode; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import twitter4j.Status; import twitter4j.Twitter; import twitter4j.TwitterException; import twitter4j.TwitterFactory; import twitter4j.User; import twitter4j.conf.ConfigurationBuilder; /** * * @author Wataru */ public class Tweet extends HttpServlet { /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> * methods. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ private final String CONSUMER_KEY = "****"; private final String CONSUMER_SECRET = "****"; private final String ACCESS_TOKEN = "****"; private final String ACCESS_TOKEN_SECRET = "****"; protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException, TwitterException { response.setContentType("text/html;charset=UTF-8"); ConfigurationBuilder cb = new ConfigurationBuilder(); cb.setDebugEnabled(true); cb.setOAuthConsumerKey(CONSUMER_KEY); cb.setOAuthConsumerSecret(CONSUMER_SECRET); cb.setOAuthAccessToken(ACCESS_TOKEN); cb.setOAuthAccessTokenSecret(ACCESS_TOKEN_SECRET); try { Twitter twitter = new TwitterFactory(cb.build()).getInstance(); User user = twitter.verifyCredentials(); HttpSession session = request.getSession(); request.setCharacterEncoding("UTF-8"); //String tweet = encode(request.getParameter("tweet")); String tweet = request.getParameter("tweet"); Status status = twitter.updateStatus(tweet); session.setAttribute("tweet", tweet); request.getRequestDispatcher("/tweet.jsp").forward(request, response); } catch (TwitterException e1) { e1.printStackTrace(); } } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * Handles the HTTP <code>GET</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (TwitterException ex) { Logger.getLogger(Tweet.class.getName()).log(Level.SEVERE, null, ex); } } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { try { processRequest(request, response); } catch (TwitterException ex) { Logger.getLogger(Tweet.class.getName()).log(Level.SEVERE, null, ex); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }