Example usage for javax.servlet.http HttpServletResponse setHeader

Introduction

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

Prototype

public void setHeader(String name, String value);

Source Link

Document

Sets a response header with the given name and value.

Usage

From source file:de.u808.simpleinquest.web.download.DownloadController.java

private void handleDownload(HttpServletResponse response, File file) throws IOException {
    response.reset();//w  w  w  .  ja  va2  s .  c  o m
    response.setContentType(mimeTypeRegistry.getMimeType(file));
    response.setHeader("Pragma", "private");
    response.setHeader("Cache-Control", "private, must-revalidate");
    response.setHeader("Content-Disposition", "attachment; filename=\"" + file.getName() + "\"");

    FileInputStream fis = new FileInputStream(file);
    OutputStream os = response.getOutputStream();
    int len = -1;
    int x = 0;
    while ((len = fis.read(buf)) != -1) {
        os.write(buf, 0, len);
    }

    response.getOutputStream().flush();
    response.getOutputStream().close();
}

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From source file:fi.hoski.web.forms.KeyInfoServlet.java

/**
 * Handles the HTTP//from  w  w w .  jav a 2s.  com
 * <code>GET</code> method.
 *
 * @param request servlet request
 * @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 {
    try {
        response.setHeader("Cache-Control", "no-cache"); // input comes from referrer
        response.setContentType("application/json");
        boolean authenticated = request.isUserInRole("member");

        JSONObject json = new JSONObject();
        Key parent = getAncestor(request);
        if (parent != null) {
            KeyInfo keyInfo = new KeyInfo(entities, events, races, "", parent, authenticated);
            Map<String, Object> m = keyInfo.getMap();
            String clubDiscount = (String) m.get("RaceSeries.ClubDiscount");
            String club = (String) m.get("Club");
            if (Boolean.parseBoolean(clubDiscount) && "HSK".equalsIgnoreCase(club)) {
                m.put("isClubDiscountGranted", true);
            } else {
                m.put("isClubDiscountGranted", false);
            }
            for (Map.Entry<String, Object> e : m.entrySet()) {
                if (e.getValue() instanceof List) {
                    JSONArray a = new JSONArray();
                    json.put(e.getKey(), a);
                    List<String> l = (List<String>) e.getValue();
                    for (String s : l) {
                        a.put(s);
                    }
                } else {
                    if (e.getValue() instanceof char[]) {
                        JSONArray a = new JSONArray();
                        json.put(e.getKey(), a);
                        char[] ar = (char[]) e.getValue();
                        for (char c : ar) {
                            a.put((int) c);
                        }
                    } else {
                        json.put(e.getKey(), e.getValue());
                    }
                }
            }
            json.write(response.getWriter());
        }
    } catch (EntityNotFoundException ex) {
        log(ex.getMessage(), ex);
        response.setStatus(HttpServletResponse.SC_NOT_FOUND);
    } catch (JSONException ex) {
        log(ex.getMessage(), ex);
        throw new ServletException(ex);
    }
}

---

From source file:cn.leancloud.diamond.server.controller.ConfigController.java

public String getConfig(HttpServletRequest request, HttpServletResponse response, String dataId, String group) {
    response.setHeader("Content-Type", "text/html;charset=UTF-8");
    final String address = getRemortIP(request);
    if (address == null) {
        // ?400//from   ww  w. j  ava2  s . co m
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        return "400";
    }

    if (GlobalCounter.getCounter().decrementAndGet() >= 0) {
        response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
        return "503";
    }

    String md5 = this.configService.getContentMD5(dataId, group);
    if (md5 == null) {
        return "404";
    }

    response.setHeader(Constants.CONTENT_MD5, md5);

    // 304???double-check??
    if (diskService.isModified(dataId, group)) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return "304";
    }
    String path = configService.getConfigInfoPath(dataId, group);
    // ?
    if (diskService.isModified(dataId, group)) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return "304";
    }
    // ?
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache,no-store");
    return "forward:" + path;
}

---

From source file:com.mec.Services.JWTService.java

public void addAuthentication(HttpServletResponse res, String username) {
    //System.out.println("TokenAuthenticationService addAuth");
    try {//from w  w  w .j  a v  a2 s  . c o  m
        res.setHeader("Date", DateUtils.formatterTime.format(LocalDateTime.now()));
        Date expires = new Date(System.currentTimeMillis() + EXPIRATIONTIME);
        String token = JWT.create().withSubject(username).withIssuer("MEC").withExpiresAt(expires)
                .sign(algorithm);
        res.addHeader(HEADER_STRING, TOKEN_PREFIX + " " + token);
        res.addHeader("Content-Type", "application/json");
        res.setHeader("Expires", DateUtils.formatterTime.format(DateUtils.asLocalDateTime(expires)));
        try {
            JSONObject json = new JSONObject("{\"token\":\"" + token + "\",\"expires\":\""
                    + DateUtils.formatterTime.format(DateUtils.asLocalDateTime(expires)) + "\"}");
            json.write(res.getWriter());
        } catch (JSONException ex) {
            Logger.getLogger(JWTService.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(JWTService.class.getName()).log(Level.SEVERE, null, ex);
        }
    } catch (JWTCreationException exception) {
        System.out.println("JWTCreationException " + exception.toString());
        try {
            JSONObject json = new JSONObject("{\"token\":\"" + exception.toString() + "\"}");
            json.write(res.getWriter());
        } catch (JSONException ex) {
            Logger.getLogger(JWTService.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Logger.getLogger(JWTService.class.getName()).log(Level.SEVERE, null, ex);
        } /*finally{
          throw new JWTCreationException(exception.toString(), exception.getCause());/*finally{
          throw new JWTCreationException(exception.toString(), exception.getCause());
          }*/
    }
}

---

From source file:com.taobao.diamond.server.controller.ConfigController.java

public String getConfig(HttpServletRequest request, HttpServletResponse response, String dataId, String group) {
    response.setHeader("Content-Type", "text/html;charset=GBK");
    final String address = getRemortIP(request);
    if (address == null) {
        // 400//from   ww  w. j  ava  2 s  .  co m
        response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
        return "400";
    }

    if (GlobalCounter.getCounter().decrementAndGet() >= 0) {
        response.setStatus(HttpServletResponse.SC_SERVICE_UNAVAILABLE);
        return "503";
    }

    String md5 = this.configService.getContentMD5(dataId, group);
    if (md5 == null) {
        return "404";
    }

    response.setHeader(Constants.CONTENT_MD5, md5);

    // 304double-check
    if (diskService.isModified(dataId, group)) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return "304";
    }
    String path = configService.getConfigInfoPath(dataId, group);
    // 
    if (diskService.isModified(dataId, group)) {
        response.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return "304";
    }
    // 
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    response.setHeader("Cache-Control", "no-cache,no-store");
    return "forward:" + path;
}

---

From source file:edu.wisc.doit.tcrypt.controller.DownloadController.java

@RequestMapping("/download")
public void downloadKey(@RequestParam("serviceName") String serviceName,
        @RequestParam("keyType") String keyType, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    try {// w  w  w  .  j  a  va 2  s. c  o  m
        KeyPair sk = (KeyPair) request.getSession().getAttribute("serviceKey_" + serviceName);

        response.setContentType("application/x-pem-file");
        response.setHeader("Content-Disposition",
                "attachment; filename=\"" + keyType + "-" + serviceName + ".pem" + "\"");

        Key key = "private".equalsIgnoreCase(keyType) ? sk.getPrivate() : sk.getPublic();

        try (final PEMWriter pemWriter = new PEMWriter(new PrintWriter(response.getOutputStream()))) {
            pemWriter.writeObject(key);
        }
    } catch (Exception e) {
        logger.error("Issue downloading the key " + keyType, e);
        throw new Exception(e);
    }
}

---

From source file:technology.tikal.ventas.service.pedido.PartidaService.java

@RequestMapping(method = RequestMethod.POST)
@ResponseStatus(HttpStatus.CREATED)// w w  w . j a  va2 s  .  com
public void crear(@PathVariable final Long pedidoId, @Valid @RequestBody final Partida request,
        final BindingResult result, final HttpServletRequest httpRequest,
        final HttpServletResponse httpResponse) {
    if (result.hasErrors()) {
        throw new NotValidException(result);
    }
    Partida nuevo = partidaController.crear(pedidoId, request);
    httpResponse.setHeader("Location", httpRequest.getRequestURI() + "/" + nuevo.getId());
}

---

From source file:com.sap.dirigible.runtime.registry.RegistryServlet.java

private void setContentLengthHeader(IEntity entity, int contentLength, HttpServletRequest request,
        HttpServletResponse response) throws IOException {
    response.setHeader(CONTENT_LENGTH_HEADER, Integer.toString(contentLength));
}

---

From source file:cz.zcu.kiv.eegdatabase.logic.controller.nif.NIFMultiController.java

/**
 * Generates a csv file from scenarios/*from  ww  w.j a va2 s  .c o  m*/
 * @param request
 * @param response
 * @return
 * @throws Exception
 */
public ModelAndView getScenariosCSVFile(HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    log.debug("Controller for creating csv file for NIF");
    OutputStream out = null;
    int headerBufferSize = 8096;

    response.setHeader("Content-Type", "text/csv");
    response.setContentType("text/csv");
    response.setHeader("Content-Disposition", "attachment;filename=EEGbase_scenarios.csv");

    log.debug("Creating output stream");
    response.setStatus(HttpServletResponse.SC_OK);
    response.setBufferSize(headerBufferSize);

    log.debug("Generating csv");
    out = csvFactory.generateScenariosCsvFile();
    ByteArrayOutputStream bout = (ByteArrayOutputStream) out;
    response.getOutputStream().write(bout.toByteArray());
    return null;
}

---

From source file:com.ddubyat.develop.jhawtcode.web.InternalResourceController.java

/**
 * Controller method to deliver application CSS
 *
 * @param response The http response object from a spring controller
 * @throws IOException if the css content is inaccessible
 *///  w  ww. j a v  a2 s  .  co  m
@RequestMapping(value = "/jhawtcode/jhc.css", method = { RequestMethod.GET })
public void requestCSS(HttpServletResponse response) throws IOException {
    log.debug("Creating application CSS");

    response.setHeader("Server", "jhawtconsole");
    response.setContentType("text/css");
    response.setHeader("Cache-Control", "no-cache,no-store,must-revalidate");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", -1);

    if (!propertyUtil.canHawtTheCode()) {
        log.trace("Not delivering CSS, application not enabled");
    }

    String heightOriginal = "height: 200px;";
    String heightOverride = heightOriginal;
    String sysHeightProp = System.getProperty("jhawtcode.console.height");
    if (sysHeightProp != null && StringUtil.isNotEmpty(sysHeightProp) && isNumeric(sysHeightProp)) {
        heightOverride = heightOriginal.replaceAll("200", sysHeightProp);
        log.debug("Overriding console height to {}", heightOverride);
    }

    try {
        log.debug("Attempting to return CSS");
        response.getWriter().write(resourceUtil.readLocalResource("classpath:/css/jhawtcode.css")
                .replaceAll(heightOriginal, heightOverride));
    } catch (IOException ioe) {
        log.debug("Unable to create CSS", ioe);
    }
}

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