Example usage for javax.servlet RequestDispatcher forward

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.edgenius.wiki.security.acegi.CaptchaValidationProcessingFilter.java

private void processVerify(ServletRequest request, ServletResponse response, FilterChain chain, boolean valid)
        throws IOException, ServletException {

    if (valid) {/*from  w w  w  .  j av a2  s  .c  om*/
        //success
        chain.doFilter(request, response);
    } else {
        //failed
        if (((HttpServletRequest) request).getRequestURI().endsWith("j_spring_security_check")) {
            //as user login using Form submit style authentication rather than RPC's so that I have to do special handling here
            //code ugly, it could be changed to RPC authentication in future.
            response.getWriter()
                    .write(SharedConstants.FORM_RET_HEADER + SharedConstants.FORM_RET_HEADER_ERROR_CAPTCHA);
        } else {
            // Put exception into request scope (perhaps of use to a view)
            ((HttpServletRequest) request).setAttribute(ACEGI_SECURITY_CAPTCHA_VALID_FAILED, true);

            // Perform RequestDispatcher "forward"
            RequestDispatcher rd = request.getRequestDispatcher(errorPage);
            rd.forward(request, response);
        }
    }

}

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From source file:com.huateng.ebank.framework.web.TransFilter.java

private boolean expiredSystem(HttpServletRequest req, HttpServletResponse resp)
        throws ServletException, IOException {
    String uriStr = StringUtils.substringAfterLast(req.getServletPath(), "/");
    if (StringUtils.indexOf(loginRef, uriStr) == -1) {
        resp.setHeader("Pragma", "No-cache");
        resp.setHeader("Cache-Control", "no-cache,no-store,max-age=0");
        resp.setDateHeader("Expires", 1);
        RequestDispatcher rd = (req).getRequestDispatcher(expiredPageName);
        rd.forward(req, resp);
        return true;
    }// ww  w .java 2  s  .c  o m
    return false;
}

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From source file:org.ldp4j.apps.ldp4ro.servlets.Form2RDFServlet.java

/**
 * Upon receiving data from the RO creation form,
 * 1. parses the request to extract the form data
 * 2. converts them to RDF to generate a RO
 * 3. submit that RO to an LDP server that manages the RO
 *///from w ww . j  a  v a 2s  .  c  o m
protected void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String requestURL = request.getRequestURL().toString();
    logger.debug("Received a POST request on '{}'", requestURL);

    Map<String, String[]> parameterMap = request.getParameterMap();

    RoRDFModel ro = new RoRDFModel(parameterMap);

    Model model = ro.process();

    ByteArrayOutputStream os = new ByteArrayOutputStream();
    model.write(os, "TURTLE");
    String roString = os.toString();

    logger.debug("Form data is converted to RDF ... \n{}", roString);

    DefaultHttpClient httpclient = new DefaultHttpClient();
    HttpPost post = new HttpPost("http://localhost:8080/ldp4j/ldp-bc/");
    //HttpPost post = new HttpPost("http://linkeddata4.dia.fi.upm.es:8088/ldp4j/ldp-bc/");

    StringEntity body = new StringEntity(roString);
    body.setContentType("text/turtle");
    post.setEntity(body);

    HttpResponse ldpResponse = httpclient.execute(post);

    try {
        int statusCode = ldpResponse.getStatusLine().getStatusCode();
        logger.debug("LDP server responded with {} {}", statusCode,
                ldpResponse.getStatusLine().getReasonPhrase());

        if (statusCode == 201 && ldpResponse.getFirstHeader("Location") != null) {
            String location = ldpResponse.getFirstHeader("Location").getValue();
            logger.debug("URI of the newly created LDPR - {}", location);

            request.setAttribute("newURI", location);

            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher("/roCreated.jsp");
            dispatcher.forward(request, response);

        } else {
            logger.error("An error occurred while creating the RO. {} {}", statusCode,
                    ldpResponse.getStatusLine().getReasonPhrase());
        }

    } finally {
        post.releaseConnection();
    }

}

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From source file:com.gigglinggnus.controllers.ManageExamsController.java

/**
 *
 * @param request servlet request//w w w  . ja va2 s  .  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 doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    EntityManager em = (EntityManager) request.getSession().getAttribute("em");

    String examId = request.getParameter("examid");
    String status = request.getParameter("status");
    Clock clk = (Clock) (request.getSession().getAttribute("clock"));
    User user = (User) (request.getSession().getAttribute("user"));

    Exam exam = em.find(Exam.class, examId);

    try {
        em.getTransaction().begin();
    } catch (Exception e) {
    }

    try {
        if (status.equals("approved")) {
            user.changeExamStatus(exam, ExamStatus.APPROVED);
            em.persist(exam);
            em.getTransaction().commit();
            request.setAttribute("msg", "Exam APPROVED");
        } else if (status.equals("denied")) {
            user.changeExamStatus(exam, ExamStatus.DENIED);
            em.persist(exam);
            em.getTransaction().commit();
            request.setAttribute("msg", "Exam Denied");
        } else {
            request.setAttribute("msg", "Invalid status");
        }
    } catch (Exception e) {
        em.getTransaction().rollback();
        request.setAttribute("msg", e.toString());
        throw e;
    }

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

---

From source file:org.broadleafcommerce.cms.web.PageURLProcessor.java

/**
 * Determines if the requestURI for the passed in request matches a custom content
 * managed page.   If so, the request is forwarded to the correct page template.
 *
 * The page object will be stored in the request attribute "BLC_PAGE".
 *
 * @param key The URI to process//from  w w w  .j ava2s  . co m
 *
 * @return false if the url could not be processed
 *
 * @throws java.io.IOException
 * @throws javax.servlet.ServletException
 */
public boolean processURL(String key) throws IOException, ServletException {
    BroadleafRequestContext context = BroadleafRequestContext.getBroadleafRequestContext();
    PageDTO p = (PageDTO) context.getRequest().getAttribute(PAGE_ATTRIBUTE_NAME);
    if (p == null) {
        p = pageService.findPageByURI(context.getLocale(), key, buildMvelParameters(context.getRequest()),
                context.isSecure());
    }

    if (p != null) {
        String templateJSPPath = p.getTemplatePath();
        if (LOG.isDebugEnabled()) {
            LOG.debug("Forwarding to page: " + templateJSPPath);
        }
        context.getRequest().setAttribute(PAGE_ATTRIBUTE_NAME, p);

        RequestDispatcher rd = context.getRequest().getRequestDispatcher(templateJSPPath);
        rd.forward(context.getRequest(), context.getResponse());
        return true;
    }
    return false;
}

---

From source file:com.cabguru.servlet.AddDriverServlet.java

private void dispatch(HttpServletRequest request, HttpServletResponse response, String callerPage, String msg) {

    try {// ww w  .j  ava 2s  .co  m
        request.setAttribute("msg", msg);
        RequestDispatcher rd = request.getRequestDispatcher(callerPage);
        rd.forward(request, response);
    } catch (ServletException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

}

---

From source file:org.broadleafcommerce.profile.web.email.EmailOpenTrackingServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {

    String url = request.getPathInfo();
    Long emailId = null;/*www . java 2  s .c  om*/
    String imageUrl = "";

    // Parse the URL for the Email ID and Image URL
    if (url != null) {
        String[] items = url.split("/");
        emailId = Long.valueOf(items[1]);
        StringBuffer sb = new StringBuffer();
        for (int j = 2; j < items.length; j++) {
            sb.append("/");
            sb.append(items[j]);
        }
        imageUrl = sb.toString();
    }

    // Record the open
    if (emailId != null) {
        if (LOG.isDebugEnabled()) {
            LOG.debug("service() => Recording Open for Email[" + emailId + "]");
        }
        WebApplicationContext context = WebApplicationContextUtils
                .getWebApplicationContext(getServletContext());
        EmailTrackingManager emailTrackingManager = (EmailTrackingManager) context
                .getBean("blEmailTrackingManager");
        String userAgent = request.getHeader("USER-AGENT");
        Map<String, String> extraValues = new HashMap<String, String>();
        extraValues.put("userAgent", userAgent);
        emailTrackingManager.recordOpen(emailId, extraValues);
    }

    if ("".equals(imageUrl)) {
        response.setContentType("image/gif");
        BufferedInputStream bis = null;
        OutputStream out = response.getOutputStream();
        try {
            bis = new BufferedInputStream(EmailOpenTrackingServlet.class.getResourceAsStream("clear_dot.gif"));
            boolean eof = false;
            while (!eof) {
                int temp = bis.read();
                if (temp == -1) {
                    eof = true;
                } else {
                    out.write(temp);
                }
            }
        } finally {
            if (bis != null) {
                try {
                    bis.close();
                } catch (Throwable e) {
                    LOG.error("Unable to close output stream in EmailOpenTrackingServlet", e);
                }
            }
            //Don't close the output stream controlled by the container. The container will
            //handle this.
        }
    } else {
        RequestDispatcher dispatcher = request.getRequestDispatcher(imageUrl);
        dispatcher.forward(request, response);
    }
}

---

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

/**
 * /*from   w w w .  j  a v a  2 s  .  c  o  m*/
 * 
 * @param req
 *            basic request
 * @param resp
 *            basic resp
 * @throws ServletException
 *             basic
 * @throws IOException
 *             basic
 */
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    RequestDispatcher dispatch = req.getRequestDispatcher("/upload.jsp");
    dispatch.forward(req, resp);
}

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From source file:org.archive.wayback.accesspoint.proxy.AuthProxyConfigSelector.java

public boolean selectConfigHandler(HttpServletRequest request, HttpServletResponse response,
        ProxyAccessPoint proxy) throws IOException {
    response.setStatus(HttpServletResponse.SC_PROXY_AUTHENTICATION_REQUIRED); //407
    response.setHeader("Proxy-Authenticate", "Basic realm=\"" + authMsg + "\"");
    response.setContentType("text/html");

    //TODO: Better way to pass this to jsp?
    request.setAttribute("proxyAccessPoint", proxy);

    StringHttpServletResponseWrapper wrappedResponse = new StringHttpServletResponseWrapper(response);
    RequestDispatcher dispatcher = request.getRequestDispatcher(proxyInfoJsp);

    try {/*w  w  w  .j  a  v  a2  s  . c om*/
        dispatcher.forward(request, wrappedResponse);
    } catch (ServletException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

    PrintWriter writer = response.getWriter();
    writer.println(wrappedResponse.getStringResponse());
    return true;
}

---

From source file:com.krawler.svnwebclient.authorization.impl.CredentialsManager.java

protected void forceCredentialsRequest(HttpServletRequest request, HttpServletResponse response) {
    request.getSession().setAttribute(CredentialsManager.CREDENTIALS, null);
    request.getSession().setAttribute(SystemInitializing.ID, null);
    try {//from   ww w. j a va2 s.  c om
        if (ConfigurationProvider.getInstance().isBasicAuth()) {
            response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
            response.setHeader("WWW-Authenticate",
                    "BASIC realm=\"" + ConfigurationProvider.getInstance().getBasicRealm() + "\"");
            response.sendError(401);
        } else {
            RequestDispatcher dispatcher = request.getRequestDispatcher(Links.LOGIN);
            dispatcher.forward(request, response);
        }
    } catch (Exception e) {
        Logger.getLogger(this.getClass()).error(e, e);
    }
}

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