Example usage for javax.servlet RequestDispatcher forward

List of usage examples for javax.servlet RequestDispatcher forward

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Introduction

In this page you can find the example usage for javax.servlet RequestDispatcher forward.

Prototype

public void forward(ServletRequest request, ServletResponse response) throws ServletException, IOException;

Source Link

Document

Forwards a request from a servlet to another resource (servlet, JSP file, or HTML file) on the server.

Usage

From source file:com.concursive.connect.web.modules.welcome.servlets.WelcomeServlet.java

public void service(HttpServletRequest request, HttpServletResponse response) throws IOException {
    try {//from ww  w  .  j a v  a2 s.c om
        request.setCharacterEncoding("UTF-8");
    } catch (Exception e) {
        LOG.warn("Unsupported encoding");
    }
    try {
        // Save the requestURI to be used downstream (it gets rewritten on forwards)
        String contextPath = request.getContextPath();
        String uri = request.getRequestURI();
        String queryString = request.getQueryString();
        String requestedURL = uri.substring(contextPath.length())
                + (queryString == null ? "" : "?" + queryString);
        if ("/index.shtml".equals(requestedURL)) {
            requestedURL = "";
        }
        request.setAttribute("requestedURL", requestedURL);
        // Configure the user's client
        ClientType clientType = (ClientType) request.getSession().getAttribute(Constants.SESSION_CLIENT_TYPE);
        if (clientType == null) {
            clientType = new ClientType();
            clientType.setParameters(request);
            request.getSession().setAttribute("clientType", clientType);
        }

        // Detect mobile
        if ("false".equals(request.getParameter("useMobile"))) {
            clientType.setMobile(false);
        }

        // Context startup initializes the prefs
        ApplicationPrefs applicationPrefs = (ApplicationPrefs) request.getSession().getServletContext()
                .getAttribute("applicationPrefs");
        if (!applicationPrefs.isConfigured()) {
            RequestDispatcher initialSetup = request.getRequestDispatcher("/Setup.do?command=Default");
            initialSetup.forward(request, response);
        } else if (ApplicationVersion.isOutOfDate(applicationPrefs)) {
            // If the site is setup, then check to see if this is an upgraded version of the app
            RequestDispatcher upgrade = getServletConfig().getServletContext()
                    .getRequestDispatcher("/Upgrade.do?command=Default&style=true");
            upgrade.forward(request, response);
        } else if ("true".equals(applicationPrefs.get("PORTAL"))) {
            // If the site supports a portal, go to the portal
            // @todo implement mobile pages then turn this back on
            //        if (clientType.getMobile()) {
            // If a mobile device is detected, offer a low-bandwidth option
            //          RequestDispatcher portal = request.getRequestDispatcher("/Login.do?command=DetectMobile");
            //          portal.forward(request, response);
            //        } else {
            String pathToUse = request.getRequestURI().substring(request.getContextPath().length());
            RequestDispatcher portal = request
                    .getRequestDispatcher(pathToUse + applicationPrefs.get("PORTAL.INDEX"));
            portal.forward(request, response);
            //        }
        } else {
            // Go to the user's home page if logged in
            User thisUser = (User) request.getSession().getAttribute(Constants.SESSION_USER);
            if (thisUser != null && thisUser.getId() > 0) {
                RequestDispatcher portal = request
                        .getRequestDispatcher("/ProjectManagement.do?command=Default");
                portal.forward(request, response);
            } else {
                RequestDispatcher portal = request.getRequestDispatcher("/Login.do?command=Default");
                portal.forward(request, response);
            }
        }
    } catch (Exception ex) {
        String msg = "Welcome failed";
        response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, msg);
    }
}

From source file:com.versatus.jwebshield.filter.SessionCheckFilter.java

/**
 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
 *///from   ww  w  . j  a  va2  s.  c  o m
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    HttpServletRequest httpReq = (HttpServletRequest) request;
    HttpServletResponse httpRes = (HttpServletResponse) response;
    String reqInfo = "J-WebShield Alert: Session check failed! request URL="
            + httpReq.getRequestURL().toString() + "| from IP address=" + httpReq.getRemoteAddr();

    logger.debug("doFilter: RequestURL=" + httpReq.getRequestURL().toString());

    UrlExclusionList exclList = (UrlExclusionList) request.getServletContext()
            .getAttribute(SecurityConstant.SESSION_CHECK_URL_EXCL_LIST_ATTR_NAME);

    try {
        if (!exclList.isEmpty() && exclList.isMatch(httpReq.getRequestURI())) {
            logger.info("doFilter: request (" + httpReq.getRequestURL().toString()
                    + " matches exclusion pattern, skipping session check");
            chain.doFilter(request, response);
            return;
        }
    } catch (Exception e) {
        logger.error("doFilter", e);
    }

    HttpSession session = httpReq.getSession(false);
    logger.debug("doFilter: session=" + session);
    logger.debug("doFilter: session attr. " + attributeToCheck + "="
            + (session != null ? session.getAttribute(attributeToCheck) : ""));

    if (session == null || session.getAttribute(attributeToCheck) == null) {
        if (send401) {
            // TODO this is not working for regular requests, only for WS
            // calls
            httpRes.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
        } else {
            logger.info(reqInfo + " redirecting to " + redirectPage);

            RequestDispatcher rd = httpReq.getRequestDispatcher(redirectPage);
            if (rd != null) {
                rd.forward(request, response);
            }
            return;
        }

    }

    logger.info("doFilter: session check complete");

    // pass the request along the filter chain
    chain.doFilter(request, response);
}

From source file:edu.lternet.pasta.portal.IdentifierBrowseServlet.java

/**
 * The doPost method of the servlet. <br>
 * //from  w  w  w.j  a  v  a  2s .c  o  m
 * This method is called when a form has its tag value method equals to post.
 * 
 * @param request
 *          the request send by the client to the server
 * @param response
 *          the response send by the server to the client
 * @throws ServletException
 *           if an error occurred
 * @throws IOException
 *           if an error occurred
 */
public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    HttpSession httpSession = request.getSession();

    String uid = (String) httpSession.getAttribute("uid");

    if (uid == null || uid.isEmpty())
        uid = "public";

    String scope = request.getParameter("scope");

    String text = null;
    String html = null;
    Integer count = 0;

    if (scope != null && !(scope.isEmpty())) {

        try {

            DataPackageManagerClient dpmClient = new DataPackageManagerClient(uid);
            text = dpmClient.listDataPackageIdentifiers(scope);

            StrTokenizer tokens = new StrTokenizer(text);

            html = "<ol>\n";

            ArrayList<String> arrayList = new ArrayList<String>();

            // Add scope/identifier values to a sorted set
            while (tokens.hasNext()) {
                arrayList.add(tokens.nextToken());
                count++;
            }

            // Output sorted set of scope/identifier values
            for (String identifier : arrayList) {

                html += "<li><a class=\"searchsubcat\" href=\"./mapbrowse?scope=" + scope + "&identifier="
                        + identifier + "\">" + scope + "." + identifier + "</a></li>\n";

            }

            html += "</ol>\n";

        } catch (Exception e) {
            handleDataPortalError(logger, e);
        }

    } else {
        html = "<p class=\"warning\"> Error: \"scope\" field empty</p>\n";
    }

    request.setAttribute("browsemessage", browseMessage);
    request.setAttribute("html", html);
    request.setAttribute("count", count.toString());
    RequestDispatcher requestDispatcher = request.getRequestDispatcher(forward);
    requestDispatcher.forward(request, response);

}

From source file:com.googlesource.gerrit.plugins.github.wizard.VelocityControllerServlet.java

private void redirectToNextStep(HttpServletRequest req, HttpServletResponse resp)
        throws IOException, ServletException {
    String sourceUri = req.getRequestURI();
    int pathPos = sourceUri.lastIndexOf('/') + 1;
    String sourcePage = sourceUri.substring(pathPos);
    String sourcePath = sourceUri.substring(0, pathPos);
    int queryStringStart = sourcePage.indexOf('?');
    if (queryStringStart > 0) {
        sourcePage = sourcePage.substring(0, queryStringStart);
    }/*from  w  w w  .ja v a  2s .co m*/
    NextPage nextPage = githubConfig.getNextPage(sourcePage);
    if (nextPage != null) {
        if (nextPage.redirect) {
            resp.sendRedirect(nextPageURL(sourcePath, nextPage));
        } else {
            RequestDispatcher requestDispatcher = req.getRequestDispatcher(nextPageURL(sourcePath, nextPage));
            req.setAttribute("destUrl", nextPage);
            requestDispatcher.forward(req, resp);
        }
    }
}

From source file:Controller.ControllerProducts.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//from w  w  w .j a v a 2  s. c  o  m
 *
 * @param request servlet request
 * @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");
    PrintWriter out = response.getWriter();
    try {

        String action = request.getParameter("action");
        if (action.equals("FIND")) {
            String productname = request.getParameter("txtname");
            Products pr = new Products();
            List<Product> list = new ArrayList<Product>();
            list = pr.list(productname);
            request.setAttribute("listSP", list);
            request.setAttribute("proname", productname);
            RequestDispatcher rd = request.getRequestDispatcher("product.jsp");
            rd.forward(request, response);
        } else if (action.equals("Delete")) {
            String code = request.getParameter("txtcode");
            Products sp = new Products();
            sp.Delete(code);
            RequestDispatcher rd = request.getRequestDispatcher("ControllerProducts?action=Find&txtname=");
            rd.forward(request, response);

        } else if (action.equals("Edit")) {
            String code = request.getParameter("txtcode");
            String name = request.getParameter("txtname");
            String price = request.getParameter("txtprice");
            String image = request.getParameter("txtimage");
            Product sp = new Product(code, name, price, image);
            request.setAttribute("SP", sp);

            RequestDispatcher rd = request.getRequestDispatcher("editProduct.jsp");
            rd.forward(request, response);

        } else if (action.equals("Search")) {
            String productname = request.getParameter("txtname");
            Products pr = new Products();
            List<Product> list = new ArrayList<Product>();
            list = pr.list(productname);
            request.setAttribute("listSP", list);
            request.setAttribute("proname", productname);
            RequestDispatcher rd = request.getRequestDispatcher("index.jsp");
            rd.forward(request, response);

        } else if (action.equals("Searchcus")) {
            String productname = request.getParameter("txtname");
            Products pr = new Products();
            List<Product> list = new ArrayList<Product>();
            list = pr.list(productname);
            request.setAttribute("listSP", list);
            request.setAttribute("proname", productname);
            RequestDispatcher rd = request.getRequestDispatcher("index_Cus1.jsp");
            rd.forward(request, response);
        }

    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:Controller.ControllerProducts.java

/**
 * Handles the HTTP <code>POST</code> method.
 *
 * @param request servlet request/*  w ww  .  j a  va2 s  .  co m*/
 * @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 {
    boolean isMultipart = ServletFileUpload.isMultipartContent(request);
    if (!isMultipart) {

    } else {
        FileItemFactory factory = new DiskFileItemFactory();
        ServletFileUpload upload = new ServletFileUpload(factory);
        List items = null;
        try {
            items = upload.parseRequest(request);
        } catch (Exception e) {
            e.printStackTrace();
        }
        Iterator iter = items.iterator();
        Hashtable params = new Hashtable();
        String fileName = null;
        while (iter.hasNext()) {
            FileItem item = (FileItem) iter.next();
            if (item.isFormField()) {
                params.put(item.getFieldName(), item.getString());
            } else {

                try {
                    String itemName = item.getName();
                    fileName = itemName.substring(itemName.lastIndexOf("\\") + 1);
                    System.out.println("path" + fileName);
                    String RealPath = getServletContext().getRealPath("/") + "upload\\" + fileName;
                    System.out.println("Rpath" + RealPath);
                    File savedFile = new File(RealPath);
                    item.write(savedFile);
                    //System.out.println("upload\\"+fileName);
                    //insert Product
                    String code = (String) params.get("txtcode");
                    String name = (String) params.get("txtname");
                    String price = (String) params.get("txtprice");
                    Products sp = new Products();
                    sp.InsertProduct(code, name, price, "upload\\" + fileName);
                    RequestDispatcher rd = request.getRequestDispatcher("product.jsp");
                    rd.forward(request, response);
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }

        }

    }
    //this.processRequest(request, response);
}

From source file:Index.LoginServlet.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//www .j  a v a2  s .c  o m
 *
 * @param request servlet request
 * @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");

    PrintWriter out = response.getWriter();

    try {
        String user, password, errorMessage;
        if (request.getParameter("user") != null && request.getParameter("password") != null) {

            user = request.getParameter("user");
            password = request.getParameter("password");

            if (user.equalsIgnoreCase("") || password.equalsIgnoreCase("")) {

                errorMessage = "Ingrese todos los datos.";
                request.setAttribute("error", errorMessage);
                request.setAttribute("funcionalidad", "Login");
                request.getRequestDispatcher("/Login.jsp").forward(request, response);

            } else {

                if (user.equals("admin") && password.equals("admin")) {

                    HttpSession session = request.getSession();
                    session.setAttribute("Admin", user);
                    request.removeAttribute("error");
                    request.removeAttribute("funcionalidad");
                    request.getRequestDispatcher("/Index.jsp").forward(request, response);
                } else {
                    QuickOrderWebService webService = new QuickOrderWebService();
                    ControllerInterface port = webService.getQuickOrderWebServicePort();
                    webservice.Cliente usr = port.infoCliente(user);

                    if (usr != null && usr.getNickname() != null) {

                        String encriptMD5 = DigestUtils.md5Hex(password);
                        password = "md5:" + encriptMD5;

                        if (usr.getPassword().equals(password)) {
                            HttpSession session = request.getSession();
                            session.setAttribute("Usuario", usr);

                            request.removeAttribute("error");
                            request.removeAttribute("funcionalidad");
                            request.getRequestDispatcher("/Index.jsp").forward(request, response);
                        } else {
                            errorMessage = "Credenciales invalidas";
                            request.setAttribute("error", errorMessage);
                            request.setAttribute("funcionalidad", "Login");
                            request.getRequestDispatcher("/Login.jsp").forward(request, response);
                        }
                    } else {
                        errorMessage = "Credenciales invalidas";
                        request.setAttribute("error", errorMessage);
                        request.setAttribute("funcionalidad", "Login");
                        request.getRequestDispatcher("/Login.jsp").forward(request, response);
                    }
                }
            }
        } else {
            errorMessage = "Error al realizar login.";
            request.setAttribute("error", errorMessage);
            request.setAttribute("funcionalidad", "Login");
            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/Login.jsp");
            dispatcher.forward(request, response);
        }
    } catch (Exception ex) {
        out.println("Error en proceso de login: " + ex.getMessage());
    } finally {
        out.close();
    }

}

From source file:feedme.controller.HomePageServlet.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request/*from  w  w  w. j  a  v a2s.c o m*/
 * @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 {
    processRequest(request, response);
    HashMap<String, Integer> category = new HashMap<>();
    List<Restaurant> restaurants;

    DbHPOnLoad dbPageOnLoad = new DbHPOnLoad();//creating a DbHPOnLoad object

    List<Restaurant> allResturent = new DbAdminManagmentTools().getAllRestaurants();

    int page = 1;
    int recordsPerPage = 6;

    if (request.getParameter("page") != null) {
        page = Integer.parseInt(request.getParameter("page"));
    }

    int noOfRecords = allResturent.size();
    int noOfPages = (int) Math.ceil(noOfRecords * 1.0 / recordsPerPage);

    category = dbPageOnLoad.getCategories();//getting a categories
    restaurants = new DbRestaurantsManagement()
            .getNextRecentRestaurantsByCatAndCity((page - 1) * recordsPerPage, recordsPerPage, 0, "Asd");//get the last 6 new restaurants

    if (isAjaxRequest(request)) {
        try {
            JSONObject restObj = new JSONObject();
            JSONArray restArray = new JSONArray();
            for (Restaurant rest : restaurants) {
                restArray.put(new JSONObject().put("resturent", rest.toJson()));
            }
            restObj.put("resturent", restArray);
            restObj.put("noOfPages", noOfPages);
            restObj.put("currentPage", page);
            response.setContentType("application/json");
            PrintWriter writer = response.getWriter();
            writer.print(restObj);
            response.getWriter().flush();
            return;
        } catch (JSONException e) {
            e.printStackTrace();
        }
    }

    List<String> cities = dbPageOnLoad.getCities();
    if (request.getSession().getAttribute("shoppingCart") == null) {
        request.getSession().setAttribute("shoppingCart", new Order());//crete a new shopping cart
    }

    List<RestaurantRanking> rankings = dbPageOnLoad.getRestRandomComments(5);//getting a random rankings from DB

    for (RestaurantRanking re : rankings) {//looping over the rankings
        re.setResturent(new DbRestaurantsManagement().getRestaurantById(re.getRestId()));
    }

    request.setAttribute("noOfPages", noOfPages);
    request.setAttribute("currentPage", page);
    request.setAttribute("category", category);//send the categories
    request.setAttribute("cities", cities);//send the cities
    request.setAttribute("restaurants", restaurants);//send the restaurants
    request.setAttribute("rankings", rankings);//send the rankings

    RequestDispatcher dispatcher = request.getRequestDispatcher("website/index.jsp");//send a ajsp file
    dispatcher.forward(request, response);
    return;
}

From source file:controllers.ServerController.java

public void logout(HttpServletRequest request, HttpServletResponse response)
        throws IOException, InterruptedException, ServletException {
    HttpSession session = request.getSession(false);
    session.invalidate();/*from   ww  w  .  java 2  s  . co m*/
    RequestDispatcher rd = request.getRequestDispatcher("index.html");
    rd.forward(request, response);
}

From source file:com.mockey.ui.JsonSchemaValidateServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    try {//from   w w w. j  a v a  2 s .c om
        Long serviceId = new Long(req.getParameter("serviceId"));
        Long scenarioId = null;
        scenarioId = new Long(req.getParameter("scenarioId"));
        Service service = store.getServiceById(serviceId);
        Scenario scenario = service.getScenario(scenarioId);
        req.setAttribute("service", service);
        req.setAttribute("scenario", scenario);
    } catch (Exception e) {
        logger.debug("Unable to retrieve a Service of ID: " + req.getParameter("serviceId"));
    }

    // Get the service.
    RequestDispatcher dispatch = req.getRequestDispatcher("/jsonschemavalidate.jsp");
    dispatch.forward(req, resp);
}