Example usage for javax.servlet.http HttpServletResponse 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:com.sunchenbin.store.feilong.servlet.http.ResponseUtil.java

/**
 * ??./*from  w w  w . j av  a  2s .co  m*/
 *
 * @param response
 *            HttpServletResponse
 */
public static void setNoCacheHeader(HttpServletResponse response) {
    // HTTP1.1? CacheControl = no-cache??
    // ? HTTP1.0 ?? Cache-Control 

    // ?? HTTP1.0 ?IEPragma:no-cache  HTTP???
    //  (https://)/??? Pragma:no-cache  Internet Explorer??
    // ?Pragma:no-cache ???? Expires:-1??
    response.setHeader(HttpHeaders.PRAGMA, "No-cache");

    // Cache-controlno-cache???Internet?
    response.setHeader(HttpHeaders.CACHE_CONTROL, "no-cache");

    //In other wordsExpires: 0not always leads to immediate resource expiration, 
    //therefore should be avoided andExpires: -1orExpires: [some valid date in the past]should be used instead.
    response.setDateHeader(HttpHeaders.EXPIRES, -1);
}

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From source file:com.sharmila.hibernatespringsecurity.controller.DefaultController.java

@RequestMapping(value = "/login", method = RequestMethod.GET)
public ModelAndView defaultPage(@RequestParam(value = "error", required = false) String error,
        @RequestParam(value = "logout", required = false) String logout, HttpServletRequest request,
        HttpServletResponse response) {
    ModelAndView model = new ModelAndView();
    if (error != null) {
        model.addObject("error", "Invalid user credentials");
    }/*from  w  ww  .j  a  va 2 s . c om*/
    if (logout != null) {
        model.addObject("message", "Logged out successfully");
        request.getSession().invalidate();
    }

    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache");
    response.setDateHeader("Expires", 0);
    model.setViewName("login");
    return model;
}

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From source file:org.opencms.search.solr.spellchecking.CmsSolrSpellchecker.java

/**
 * Sets the appropriate headers to response of this request.
 *
 * @param response The HttpServletResponse response object.
 *//*from w  w  w  .ja v a2s.  c o m*/
private void setResponeHeaders(HttpServletResponse response) {

    response.setHeader("Cache-Control", "no-store, no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", System.currentTimeMillis());
    response.setContentType("text/plain; charset=utf-8");
    response.setCharacterEncoding("utf-8");
}

---

From source file:org.silverpeas.web.directory.servlets.ImageDisplay.java

@Override
public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException {
    SilverLogger logger = SilverLogger.getLogger(this);
    String avatarPath = getAvatar(req);
    ImageProfil profile = new ImageProfil(avatarPath);
    if (!profile.exist()) {
        logger.warn("The image {0} doesn't exist", avatarPath);
        res.sendError(HttpServletResponse.SC_NOT_FOUND);
    } else {//from  w  w  w  .  j av  a2s.c  o m
        res.setContentType(profile.getMimeType());
        res.setHeader("Cache-Control", "no-store"); //HTTP 1.1
        res.setHeader("Pragma", "no-cache");
        res.setDateHeader("Expires", -1);
        try (InputStream in = profile.getImage(); OutputStream out = res.getOutputStream()) {
            IOUtils.copy(in, out);
        } catch (IOException e) {
            logger.error("Error while getting image {0}", avatarPath);
            throw e;
        }
    }
}

---

From source file:com.synnex.saas.platform.core.servlet.CaptchaServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    try {/*from  w  w  w .j a  v  a  2 s.  co m*/
        int width = 50;
        int height = 18;
        String captchaCode = RandomStringUtils.random(4, true, true);
        HttpSession session = request.getSession(true);
        session.setAttribute("captchaCode", captchaCode);

        response.setContentType("images/jpeg");
        response.setHeader("Pragma", "No-cache");
        response.setHeader("Cache-Control", "no-cache");
        response.setDateHeader("Expires", 0);

        ServletOutputStream out = response.getOutputStream();
        BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics g = image.getGraphics();
        g.setColor(getRandColor(200, 250));
        g.fillRect(0, 0, width, height);
        Font mFont = new Font("Times New Roman", Font.BOLD, 18);
        g.setFont(mFont);
        g.setColor(getRandColor(160, 200));
        Random random = new Random();
        for (int i = 0; i < 155; i++) {
            int x2 = random.nextInt(width);
            int y2 = random.nextInt(height);
            int x3 = random.nextInt(12);
            int y3 = random.nextInt(12);
            g.drawLine(x2, y2, x2 + x3, y2 + y3);
        }
        g.setColor(new Color(20 + random.nextInt(110), 20 + random.nextInt(110), 20 + random.nextInt(110)));
        g.drawString(captchaCode, 2, 16);
        g.dispose();
        ImageIO.write((BufferedImage) image, "JPEG", out);
        out.close();
    } catch (Exception e) {
        logger.error("Generate captcha failed.", e);
    }
}

---

From source file:com.library.essay.tinymce.spellchecker.TinyMCESpellCheckerServlet.java

/**
 * @param response response//w w  w. j  a v  a 2s  .  c  om
 */
private void setResponeHeaders(HttpServletResponse response) {
    response.setContentType("text/plain; charset=utf-8");
    response.setCharacterEncoding("utf-8");
    response.setHeader("Cache-Control", "no-store, no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", System.currentTimeMillis());
}

---

From source file:com.vmware.appfactory.common.base.AbstractController.java

/**
 * Set HTTP headers on an HTTP response to hopefully force browsers to
 * prevent the response being cached. Especially important for dynamic
 * content updates. We're talking to you, Internet Explorer.
 *///from w  w w .  j  a  v  a 2s.co m
protected void setNoCacheHeaders(HttpServletResponse response) {
    response.addHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate, post-check=0, pre-check=0");
    response.setDateHeader("Expires", 0);
}

---

From source file:be.fedict.eid.dss.sp.servlet.DownloadServlet.java

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

    LOG.debug("doGet");
    HttpSession httpSession = request.getSession();
    byte[] document = (byte[]) httpSession.getAttribute("document");

    response.setHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=-1"); // http 1.1
    if (!request.getScheme().equals("https")) {
        // else the download fails in IE
        response.setHeader("Pragma", "no-cache"); // http 1.0
    } else {/*from  w  w w.ja v a  2s.  co  m*/
        response.setHeader("Pragma", "public");
    }
    response.setDateHeader("Expires", -1);
    response.setContentLength(document.length);

    String contentType = (String) httpSession.getAttribute("ContentType");
    LOG.debug("content-type: " + contentType);
    response.setContentType(contentType);
    response.setContentLength(document.length);
    ServletOutputStream out = response.getOutputStream();
    out.write(document);
    out.flush();
}

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From source file:custom.application.login.java

public void toImage() {

    HttpServletRequest request = (HttpServletRequest) this.context.getAttribute("HTTP_REQUEST");
    HttpServletResponse response = (HttpServletResponse) this.context.getAttribute("HTTP_RESPONSE");

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

    try {/*from  w w w.j  ava  2s.  c  om*/
        ValidateCode code = new ValidateCode(request);
        code.toImage(response);
    } catch (java.io.IOException io) {
        io.printStackTrace();
    }
}

---

From source file:org.romaframework.aspect.view.html.HtmlServlet.java

protected void setResponseHeaders(final HttpServletResponse response) {
    response.setContentType("text/html");
    response.setCharacterEncoding("UTF-8");
    // response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate"); //HTTP 1.1
    response.addHeader("Cache-Control", "must-revalidate");
    response.addHeader("Cache-Control", "no-cache");
    response.addHeader("Cache-Control", "no-store");
    response.setHeader("Pragma", "no-cache"); // HTTP 1.0
    response.setDateHeader("Expires", 0); // prevents caching at the proxy server
}

---

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