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:controller.uploadPergunta7ArquivoAjuste.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods./*  www  .ja  va  2 s.co 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 {

    String idLocal = (String) request.getParameter("idLocal");
    String expressaoModeloVolumePadrao = (String) request.getParameter("expressaoModeloVolumePadrao");

    String name = "";
    //process only if its multipart content
    if (ServletFileUpload.isMultipartContent(request)) {
        try {
            List<FileItem> multiparts = new ServletFileUpload(new DiskFileItemFactory()).parseRequest(request);

            for (FileItem item : multiparts) {
                if (!item.isFormField()) {
                    name = new File(item.getName()).getName();
                    //                        item.write( new File(UPLOAD_DIRECTORY + File.separator + name));
                    item.write(new File(AbsolutePath + File.separator + name));
                }
            }

            //File uploaded successfully
            request.setAttribute("message", "File Uploaded Successfully");
        } catch (Exception ex) {
            request.setAttribute("message", "File Upload Failed due to " + ex);
        }

    } else {
        request.setAttribute("message", "Sorry this Servlet only handles file upload request");
    }
    expressaoModeloVolumePadrao = expressaoModeloVolumePadrao.replace("+", "%2B");
    RequestDispatcher view = getServletContext().getRequestDispatcher("/novoLocalPergunta7?id=" + idLocal
            + "&nomeArquivoAjuste=" + name + "&expressaoModeloVolumePadrao=" + expressaoModeloVolumePadrao);
    view.forward(request, response);

    //        request.getRequestDispatcher("/novoLocalPergunta3?id="+idLocal+"&fupload=1&nomeArquivo="+name).forward(request, response);
    // request.getRequestDispatcher("/novoLocalPergunta4?id="+idLocal+"&nomeArquivo="+name).forward(request, response);

}

From source file:org.apache.hadoop.hdfsproxy.ProxyForwardServlet.java

/** {@inheritDoc} */
public void forwardRequest(HttpServletRequest request, HttpServletResponse response, ServletContext context,
        String pathInfo) throws IOException, ServletException {
    String path = buildForwardPath(request, pathInfo);
    RequestDispatcher dispatcher = context.getRequestDispatcher(path);
    if (dispatcher == null) {
        LOG.info("There was no such dispatcher: " + path);
        response.sendError(HttpServletResponse.SC_NO_CONTENT);
        return;/*from w  w w .j  a v a  2s . c o  m*/
    }
    dispatcher.forward(request, response);
}

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

/**
 * The doPost method of the servlet. <br>
 * //w  ww. j  av  a2s.  co 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 forward = (String) request.getParameter("forward");
    String startStr = (String) request.getParameter("start");
    String rowsStr = (String) request.getParameter("rows");
    String sort = (String) request.getParameter("sort");

    if (sort == null || sort.equals("")) {
        sort = String.format("%s,%s", Search.PACKAGEID_SORT, Search.SORT_ORDER_ASC);
    }

    if (forward == null)
        forward = "savedData.jsp";

    String uid = (String) httpSession.getAttribute("uid");
    if (uid == null || uid.isEmpty()) {
        uid = "public";
    }

    String message = null;
    if (uid.equals("public")) {
        message = LOGIN_WARNING;
        forward = "./login.jsp";
        request.setAttribute("message", message);
        request.setAttribute("from", "savedDataServlet");
    } else {
        String operation = (String) request.getParameter("operation"); // "save" or "unsave"
        String packageId = (String) request.getParameter("packageId");
        SavedData savedData = new SavedData(uid);

        /*
         * First, execute any operations that change the state of the saved data
         */
        if (operation != null && packageId != null) {
            EmlPackageIdFormat emlPackageIdFormat = new EmlPackageIdFormat();
            EmlPackageId emlPackageId = emlPackageIdFormat.parse(packageId);
            String scope = emlPackageId.getScope();
            Integer identifier = emlPackageId.getIdentifier();
            Integer revision = emlPackageId.getRevision();

            if (operation.equals("save")) {
                savedData.addDocid(scope, identifier, revision);
            } else if (operation.equals("unsave")) {
                savedData.removeDocid(scope, identifier);
            }
        }

        /*
         * If we are forwarding to the saved data page, update the HTML
         * to be displayed
         */
        if (forward != null && forward.equals("savedData.jsp")) {
            String html = "<p>There are no data packages on your data shelf.</p>";
            String termsListHTML = "";
            String xml = null;
            response.setContentType("text/html");
            try {
                xml = savedData.getSavedDataXML(startStr, rowsStr, sort);
                if (xml != null) {
                    httpSession.setAttribute("termsListHTML", termsListHTML);
                    boolean isSavedDataPage = true;
                    ResultSetUtility resultSetUtility = new ResultSetUtility(xml, sort, savedData,
                            isSavedDataPage);
                    html = resultSetUtility.xmlToHtmlTable(cwd + xslpath);
                }
                request.setAttribute("searchresult", html);
            } catch (Exception e) {
                handleDataPortalError(logger, e);
            }
        }
    }

    /*
     * Forward to login.jsp or savedData.jsp, but not to other values because
     * they use AJAX and we don't want a page refresh
     */
    if (forward != null && !forward.equals("") && !forward.equals("savedData")
            && !forward.equals("simpleSearch")) {
        RequestDispatcher requestDispatcher = request.getRequestDispatcher(forward);
        requestDispatcher.forward(request, response);
    }
}

From source file:br.com.wavii.securyti.JsfLoginUrlAuthenticationEntryPoint.java

/**
 * Performs the redirect (or forward) to the login form URL.
 *///from w  w w .j  a  v  a  2 s  . co  m
public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException, ServletException {

    String redirectUrl = null;

    if (useForward) {

        if (forceHttps && "http".equals(request.getScheme())) {
            // First redirect the current request to HTTPS.
            // When that request is received, the forward to the login page
            // will be used.
            redirectUrl = buildHttpsRedirectUrlForRequest(request);
        }

        if (redirectUrl == null) {
            String loginForm = determineUrlToUseForThisRequest(request, response, authException);

            if (logger.isDebugEnabled()) {
                logger.debug("Server side forward to: " + loginForm);
            }

            RequestDispatcher dispatcher = request.getRequestDispatcher(loginForm);

            dispatcher.forward(request, response);

            return;
        }
    } else {
        // redirect to login page. Use https if forceHttps true

        redirectUrl = buildRedirectUrlToLoginPage(request, response, authException);

    }

    redirectStrategy.sendRedirect(request, response, redirectUrl);
}

From source file:Controller.ControllerCustomers.java

/**
 * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
 * methods.//  ww 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("Login")) {
            String user = request.getParameter("txtId");
            String pass = request.getParameter("txtpass");
            Customers ct = new Customers();
            String anh = ct.anh(user);
            boolean check = ct.checkLogin(user, pass);
            String url = "error.jsp";
            if (check) {
                if (ct.role(user)) {
                    RequestDispatcher rd = request.getRequestDispatcher("Admin.jsp");
                    rd.forward(request, response);
                } else {

                    url = "index_Cus_2.jsp";
                    HttpSession session = request.getSession(true);
                    session.setAttribute("User", user);
                    session.setAttribute("Image", anh);
                    //                   <%

                    CartDao listsp = new CartDao();
                    List<Cart> list = CartDao.layDanhSachCart(user);
                    session.setAttribute("list", list);
                    //      %>

                }

            }
            RequestDispatcher rd = request.getRequestDispatcher(url);
            rd.forward(request, response);

        } else if (action.equals("FIND")) {
            String username = request.getParameter("txtusername");
            CustomerDAO cusdao = new CustomerDAO();
            List<Customer> list = new ArrayList<Customer>();
            list = cusdao.layDanhSachKhachHang(username);
            request.setAttribute("listKH", list);
            RequestDispatcher rd = request.getRequestDispatcher("CustomerDao.jsp");
            rd.forward(request, response);

        } else if (action.equals("DELETE")) {
            String username = request.getParameter("txtusername");
            boolean delete = CustomerDAO.XoaKhachHang(username);
            if (delete) {
                RequestDispatcher rd = request.getRequestDispatcher("CustomerDao.jsp");
                rd.forward(request, response);

            }

        } else if (action.equals("Edit")) {
            String username = request.getParameter("txtusername");
            String password = request.getParameter("txtpassword");
            String hoten = request.getParameter("txthoten");
            String gioitinh = request.getParameter("txtgioitinh");
            String email = request.getParameter("txtemail");
            String role = request.getParameter("txtrole");
            String anh = request.getParameter("txtanh");
            Customer cus = new Customer(username, password, hoten, gioitinh, email, role, anh);
            request.setAttribute("Cus", cus);
            RequestDispatcher rd = request.getRequestDispatcher("editCustomer.jsp");
            rd.forward(request, response);

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

    }

}

From source file:feedme.controller.OrderCompleteServlet.java

/**
 * Handles the HTTP <code>GET</code> method.
 *
 * @param request servlet request//w w  w.  j a va 2  s .  c  om
 * @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);

    AuthenticatUser customer = (AuthenticatUser) request.getSession().getAttribute("AuthenticatUser");//getting the customer from the session
    try {//check if its a customer 
        if (customer != null && PasswordEncryptionService.authenticate(Integer.toString(0),
                customer.getEncrypRole(), "Customer".getBytes())) {
            request.setAttribute("customer",
                    (Customer) new DbUsersManagement().getUserById(customer.getUserId()));
        }
    } catch (NoSuchAlgorithmException ex) {
        Logger.getLogger(OrderCompleteServlet.class.getName()).log(Level.SEVERE, null, ex);
    } catch (InvalidKeySpecException ex) {
        Logger.getLogger(OrderCompleteServlet.class.getName()).log(Level.SEVERE, null, ex);
    }

    RequestDispatcher dispatcher = request.getRequestDispatcher("website/complete_order.jsp");//displays the customer a jsp file
    dispatcher.forward(request, response);

}

From source file:org.shredzone.commons.view.impl.ViewServiceImpl.java

@Override
public void handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
    String path = req.getPathInfo();
    if (path == null) {
        path = "";
    }//from   www  . j  a v  a  2s.c  om

    interceptors.forEach(it -> it.onRequest(req, resp));

    String renderViewName = null;

    try {
        ViewContext context = getViewContext();
        context.putTypedArgument(ServletContext.class, servletContext);
        context.putTypedArgument(HttpServletResponse.class, resp);
        renderViewName = invokeView(path);
    } catch (ErrorResponseException ex) {
        if (log.isDebugEnabled()) {
            StringBuilder sb = new StringBuilder();
            sb.append("View handler returned HTTP status ").append(ex.getResponseCode());
            if (ex.getMessage() != null) {
                sb.append(" (").append(ex.getMessage()).append(')');
            }
            sb.append(" for path '").append(path).append('\'');
            log.debug(sb.toString());
        }

        for (ViewInterceptor interceptor : interceptors) {
            if (interceptor.onErrorResponse(ex, req, resp)) {
                return;
            }
        }

        if (ex.getMessage() != null) {
            resp.sendError(ex.getResponseCode(), ex.getMessage());
        } else {
            resp.sendError(ex.getResponseCode());
        }
        return;
    }

    if (renderViewName != null) {
        for (ViewInterceptor interceptor : interceptors) {
            String newViewName = interceptor.onRendering(renderViewName, req, resp);
            if (newViewName != null) {
                renderViewName = newViewName;
            }
        }

        String fullViewPath = getTemplatePath(renderViewName);
        RequestDispatcher dispatcher = servletContext.getRequestDispatcher(fullViewPath);
        dispatcher.forward(req, resp);
    }
}

From source file:edu.ncsu.lib.browse.Browse.java

private void dispatchError(HttpServletRequest request, HttpServletResponse response) {
    RequestDispatcher errDispatcher = request.getRequestDispatcher("jsp/error.jsp");
    try {//w  ww.ja v a  2 s.  c o  m
        errDispatcher.forward(request, response);
    } catch (Exception e) {
        System.out.println("Error forwarding to error.jsp");
        e.printStackTrace();
    }
}

From source file:Controller.ControllerCustomers.java

/**
 * Handles the HTTP <code>POST</code> method.
 *
 * @param request servlet request/*w w w  . jav  a 2s  .com*/
 * @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);
                    String RealPath = getServletContext().getRealPath("/") + "upload\\" + fileName;
                    String username = (String) params.get("txtusername");
                    String password = (String) params.get("txtpassword");
                    String hoten = (String) params.get("txthoten");
                    String gioitinh = (String) params.get("txtgioitinh");
                    String email = (String) params.get("txtemail");
                    String role = (String) params.get("txtrole");
                    String anh = (String) params.get("txtanh");
                    //Update  product
                    if (fileName.equals("")) {

                        Customer Cus = new Customer(username, password, hoten, gioitinh, email, role, anh);
                        CustomerDAO.SuaThongTinKhachHang(Cus);
                        RequestDispatcher rd = request.getRequestDispatcher("CustomerDao.jsp");
                        rd.forward(request, response);

                    } else {
                        // bat dau ghi file
                        File savedFile = new File(RealPath);
                        item.write(savedFile);
                        //ket thuc ghi

                        Customer Cus = new Customer(username, password, hoten, gioitinh, email, role,
                                "upload\\" + fileName);
                        CustomerDAO.SuaThongTinKhachHang(Cus);

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

                } catch (Exception e) {
                    System.out.println(e);
                    RequestDispatcher rd = request.getRequestDispatcher("InformationError.jsp");
                    rd.forward(request, response);
                }
            }

        }
    }

}

From source file:br.com.gerenciapessoal.security.JsfLoginUrlAuthenticationEntryPoint.java

/**
 * Performs the redirect (or forward) to the login form URL.
 *
 * @param request//ww w .  ja v a  2  s  .c  o  m
 * @param response
 * @param authException
 * @throws java.io.IOException
 * @throws javax.servlet.ServletException
 */
@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException, ServletException {

    String redirectUrl = null;

    if (useForward) {

        if (forceHttps && "http".equals(request.getScheme())) {
            // First redirect the current request to HTTPS.
            // When that request is received, the forward to the login page will be used.
            redirectUrl = buildHttpsRedirectUrlForRequest(request);
        }

        if (redirectUrl == null) {
            String loginForm = determineUrlToUseForThisRequest(request, response, authException);

            if (logger.isDebugEnabled()) {
                logger.debug("Server side forward to: " + loginForm);
            }

            RequestDispatcher dispatcher = request.getRequestDispatcher(loginForm);

            dispatcher.forward(request, response);

            return;
        }
    } else {
        // redirect to login page. Use https if forceHttps true

        redirectUrl = buildRedirectUrlToLoginPage(request, response, authException);

    }

    redirectStrategy.sendRedirect(request, response, redirectUrl);
}