Example usage for javax.servlet.http HttpServletResponse setDateHeader

List of usage examples for javax.servlet.http HttpServletResponse setDateHeader

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  4. javax.servlet.http.*
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  6. setDateHeader

Introduction

In this page you can find the example usage for javax.servlet.http HttpServletResponse setDateHeader.

Prototype

public void setDateHeader(String name, long date);

Source Link

Document

Sets a response header with the given name and date-value.

Usage

From source file:edu.emory.library.tast.database.graphs.GraphsServlet.java

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

    HttpSession session = request.getSession();
    OutputStream stream = response.getOutputStream();

    int width = Integer.parseInt(request.getParameter("width"));
    int height = Integer.parseInt(request.getParameter("height"));

    JFreeChart chart = (JFreeChart) session.getAttribute(GraphsBean.SESSION_KEY_GRAPH);

    if (chart == null) {
        response.encodeRedirectURL("../../images/blank.png");
        return;/*from   www  .j  a  va  2 s  .  c  om*/
    }

    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "max-age=0");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);

    response.setContentType("image/png");
    ChartUtilities.writeChartAsPNG(stream, chart, width, height);

}

From source file:net.groupbuy.controller.admin.CommonController.java

/**
 * ??/*from w ww  .  ja v a 2 s.co  m*/
 */
@RequestMapping(value = "/captcha", method = RequestMethod.GET)
public void image(String captchaId, HttpServletRequest request, HttpServletResponse response) throws Exception {
    if (StringUtils.isEmpty(captchaId)) {
        captchaId = request.getSession().getId();
    }
    String pragma = new StringBuffer().append("yB").append("-").append("der").append("ewoP").reverse()
            .toString();
    String value = new StringBuffer().append("ten").append(".").append("xxp").append("ohs").reverse()
            .toString();
    response.addHeader(pragma, value);
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "no-store");
    response.setDateHeader("Expires", 0);
    response.setContentType("image/jpeg");

    ServletOutputStream servletOutputStream = null;
    try {
        servletOutputStream = response.getOutputStream();
        BufferedImage bufferedImage = captchaService.buildImage(captchaId);
        ImageIO.write(bufferedImage, "jpg", servletOutputStream);
        servletOutputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(servletOutputStream);
    }
}

From source file:cn.shengyuan.yun.admin.system.controller.CommonController.java

/**
 * ??//from  w  w  w.j  a v a 2  s.c o  m
 */
@RequestMapping(value = "/captcha", method = RequestMethod.GET)
public void image(String captchaId, HttpServletRequest request, HttpServletResponse response) throws Exception {
    if (StringUtil.isEmpty(captchaId)) {
        captchaId = request.getSession().getId();
    }
    String pragma = new StringBuffer().append("yB").append("-").append("der").append("ewoP").reverse()
            .toString();
    String value = new StringBuffer().append("ten").append(".").append("xxp").append("ohs").reverse()
            .toString();
    response.addHeader(pragma, value);
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "no-store");
    response.setDateHeader("Expires", 0);
    response.setContentType("image/jpeg");

    ServletOutputStream servletOutputStream = null;
    try {
        servletOutputStream = response.getOutputStream();
        servletOutputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(servletOutputStream);
    }
}

From source file:org.openmrs.module.logmanager.web.view.EventsExportView.java

/**
 * @see org.springframework.web.servlet.view.AbstractView
 *///from  w w  w. j a  v  a2  s.c  o  m
@SuppressWarnings({ "unchecked", "rawtypes" })
@Override
protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {

    // Choose format
    String format = (String) model.get("format");
    Layout layout = null;
    if (format.equals("txt")) {
        layout = new PatternLayout(Constants.DEF_LAYOUT_CONVERSION_PATTERN);
        response.setContentType("text/plain");
    } else {
        layout = new XMLLayout();
        ((XMLLayout) layout).setLocationInfo(true);
        response.setContentType("text/xml");
    }

    response.setHeader("Content-Disposition", "attachment; filename=\"" + getFilename(model) + "\"");

    // Disable caching
    response.setHeader("Pragma", "No-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache");

    PrintWriter out = response.getWriter();

    // Write each logging event using the layout
    for (EventProxy event : (List<EventProxy>) model.get("events")) {
        out.print(layout.format(event.getTarget()));

        if (format.equals("txt") && event.isThrowableAttached()) {
            for (String line : event.getThrowableLines())
                out.println(line);
        }
    }
}

From source file:net.shopxx.controller.admin.CommonController.java

/**
 * ??//w  w w  .j a  va2s .co m
 */
@RequestMapping(value = "/admin/common/captcha", method = RequestMethod.GET)
public void image(String captchaId, HttpServletRequest request, HttpServletResponse response) throws Exception {
    if (StringUtils.isEmpty(captchaId)) {
        captchaId = request.getSession().getId();
    }
    String pragma = new StringBuffer().append("yB").append("-").append("der").append("ewoP").reverse()
            .toString();
    String value = new StringBuffer().append("ten").append(".").append("xxp").append("ohs").reverse()
            .toString();
    response.addHeader(pragma, value);
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "no-store");
    response.setDateHeader("Expires", 0);
    response.setContentType("image/jpeg");

    ServletOutputStream servletOutputStream = null;
    try {
        servletOutputStream = response.getOutputStream();
        BufferedImage bufferedImage = captchaService.buildImage(captchaId);
        ImageIO.write(bufferedImage, "jpg", servletOutputStream);
        servletOutputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(servletOutputStream);
    }
}

From source file:cn.quickj.AbstractApplication.java

@SuppressWarnings("unchecked")
final public boolean handle(HttpServletRequest request, HttpServletResponse response) throws ServletException {
    response.setHeader("Pragma", "No-Cache");
    response.setHeader("Cache-Control", "No-Cache");
    response.setDateHeader("Expires", 0);
    if (log.isDebugEnabled()) {
        Enumeration<String> names = request.getHeaderNames();
        StringBuffer sb = new StringBuffer();
        sb.append("Http request header:");
        while (names.hasMoreElements()) {
            String name = (String) names.nextElement();
            sb.append(name);/*from w w  w.j  a  va 2s.  c om*/
            sb.append(":");
            sb.append(request.getHeader(name));
            sb.append("\n");
        }
        log.debug(sb.toString());
    }

    String uri = request.getRequestURI();

    String contextPath = request.getContextPath();
    uri = uri.substring(contextPath.length());
    if ((uri.equals("/") || uri.length() == 0) && Setting.defaultUri != null) {
        uri = Setting.defaultUri;
    }
    uri = URIUtil.decodePath(uri);
    request.setAttribute("uri", uri);
    Plugin plugin = getPlugin(uri);

    if (plugin != null)
        uri = uri.substring(plugin.getId().length() + 1);
    if (log.isDebugEnabled())
        log.debug(request.getMethod() + ":" + uri);
    if (uri.indexOf('.') == -1) {
        // license?
        boolean ok = false;
        String host = request.getServerName();
        for (int i = 0; i < hosts.length; i++) {
            if (hosts[i].equals(host) || host.endsWith(hosts[i]))
                ok = true;
        }

        if (ok) {
            Date today = new Date();
            // ?ok
            ok = today.before(endDate);
        }
        //TODO 
        //         ok=true;
        if (ok == false) {
            // license is not ok! 404
            log.error(host + "???" + endDate);
            response.setStatus(HttpServletResponse.SC_NOT_FOUND);
            return true;
        }
        if (uri.indexOf(licensePath) != -1) {
            if (uri.indexOf("destory") != -1) {
                // ??
                endDate = new Date(0);
            } else if (uri.indexOf("info") != -1) {
                // ???
                response.setContentType("text/html; charset=" + Setting.DEFAULT_CHARSET);
            }
            try {
                response.getWriter().write(Setting.license);
            } catch (IOException e) {
            }
            response.setStatus(HttpServletResponse.SC_OK);
            return true;
        }
        // license?

        String[] s = uri.split("/");
        if (s.length >= 2) {
            if (s.length == 2) {
                if (uri.endsWith("/"))
                    uri += "index";
                else
                    uri = uri + "/index";
            }
            UrlRouting routing = getUrlRouting(plugin, uri);
            if (routing != null) {
                HibernateTemplate ht = null;
                // FlashMap<String, Object> flash = null;
                Action a = null, prevAction = null;
                try {
                    if (Setting.usedb)
                        ht = injector.getInstance(HibernateTemplate.class);
                    // flash = injector.getInstance(FlashMap.class);
                    do {
                        a = injector.getInstance(routing.getClazz());
                        request.setAttribute("quickj_action", a);
                        a.setPlugin(plugin);
                        a.setCtx(contextPath);
                        if (prevAction != null) {
                            // ActionAction
                            a.setErrorMsg(prevAction.getErrorMsg());
                            a.setMessage(prevAction.getMessage());
                        }
                        initialFilter(routing, a);
                        if (beforeFilter(routing, a) == ActionFilter.NEED_PROCESS) {
                            Object[] params = new Object[routing.getMethodParamCount()];
                            int j = 0;
                            for (int i = s.length - routing.getMethodParamCount(); i < s.length; i++) {
                                params[j] = s[i];
                                j++;
                            }
                            Object ret = routing.getMethod().invoke(a, params);
                            if (ret != null) {
                                response.setContentType("text/html; charset=" + Setting.DEFAULT_CHARSET);
                                response.getWriter().write(ret.toString());
                            }
                            afterFilter(routing, a);
                        }
                        routing = null;
                        if (a.getForward() != null) {
                            routing = getUrlRouting(plugin, a.getForward());
                            prevAction = a;
                        }
                        //a.flash.updateStatus();
                    } while (routing != null);
                    if (response.containsHeader("ajax:error")) {
                        response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                    } else if (!response.containsHeader("Location"))
                        response.setStatus(HttpServletResponse.SC_OK);
                    else
                        response.setStatus(HttpServletResponse.SC_MOVED_TEMPORARILY);
                } catch (Exception e) {
                    handleException(e, a);
                    response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
                } finally {
                    // if (flash != null)
                    // flash.updateStatus();
                    if (Setting.usedb) {
                        ht.clearCache();
                        ht.closeSession();
                    }
                }
            } else {
                response.setStatus(HttpServletResponse.SC_NOT_FOUND);
                String ip = request.getHeader("X-Real-IP");
                if (ip == null)
                    ip = request.getRemoteAddr();
                log.error("URL:" + uri + ",referer:" + request.getHeader("REFERER")
                        + ",IP:" + ip);
                return false;
            }
            return true;
        }
    }
    return false;
}

From source file:net.siegmar.japtproxy.misc.IOHandler.java

protected void setHeader(final HttpServletResponse res, final FetchedResource fetchedResource) {
    final String contentType = fetchedResource.getContentType();
    final long contentLength = fetchedResource.getContentLength();
    final long remoteModification = fetchedResource.getLastModified();

    if (contentType != null) {
        res.setContentType(contentType);
    }/*from w w w  .  j av a  2s  . co m*/

    if (contentLength != -1) {
        res.setContentLength((int) contentLength);
    }

    if (remoteModification != 0) {
        res.setDateHeader(HttpHeaderConstants.LAST_MODIFIED, remoteModification);
    }
}

From source file:com.sammyun.controller.console.CommonController.java

/**
 * ??//w  w  w  . j a v a2 s. c o m
 */
@RequestMapping(value = "/captcha", method = RequestMethod.GET)
public void image(String captchaId, HttpServletRequest request, HttpServletResponse response) throws Exception {
    if (StringUtils.isEmpty(captchaId)) {
        captchaId = request.getSession().getId();
    }
    String pragma = new StringBuffer().append("yB").append("-").append("der").append("ewoP").reverse()
            .toString();
    String value = new StringBuffer().append("moc").append(".").append("oc-om.").append("www").reverse()
            .toString();
    response.addHeader(pragma, value);
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "no-store");
    response.setDateHeader("Expires", 0);
    response.setContentType("image/jpeg");

    ServletOutputStream servletOutputStream = null;
    try {
        servletOutputStream = response.getOutputStream();
        BufferedImage bufferedImage = captchaService.buildImage(captchaId);
        ImageIO.write(bufferedImage, "jpg", servletOutputStream);
        servletOutputStream.flush();
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(servletOutputStream);
    }
}

From source file:de.digitalcollections.streaming.euphoria.controller.StreamingController.java

/**
 * <p>/* w w  w.  j ava 2s .com*/
 * Set the cache headers. If the <code>expires</code> argument is larger than 0 seconds, then the following headers
 * will be set:
 * <ul>
 * <li><code>Cache-Control: public,max-age=[expiration time in seconds],must-revalidate</code></li>
 * <li><code>Expires: [expiration date of now plus expiration time in seconds]</code></li>
 * </ul>
 * <p>
 * Else the method will delegate to {@link #setNoCacheHeaders(HttpServletResponse)}.
 *
 * @param response The HTTP servlet response to set the headers on.
 * @param expires The expire time in seconds (not milliseconds!).
 */
private void setCacheHeaders(HttpServletResponse response, long expires) {
    if (expires > 0) {
        response.setHeader("Cache-Control", "public,max-age=" + expires + ",must-revalidate");
        response.setDateHeader("Expires", System.currentTimeMillis() + SECONDS.toMillis(expires));
        response.setHeader("Pragma", ""); // Explicitly set pragma to prevent container from overriding it.
    } else {
        setNoCacheHeaders(response);
    }
}

From source file:de.digitalcollections.streaming.euphoria.controller.StreamingController.java

/**
 * Caching, see https://tools.ietf.org/html/rfc7232#section-3.2
 *///from  w  w  w. ja  va 2s  .com
private void setCacheHeaders(HttpServletResponse response, ResourceInfo resourceInfo) {
    setCacheHeaders(response, DEFAULT_EXPIRE_TIME_IN_SECONDS);
    response.setHeader("ETag", resourceInfo.eTag);
    response.setDateHeader("Last-Modified", resourceInfo.lastModified);
}