Example usage for javax.servlet.http HttpServletResponse addHeader

Introduction

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

Prototype

public void addHeader(String name, String value);

Source Link

Document

Adds a response header with the given name and value.

Usage

From source file:com.sishuok.chapter3.web.controller.StreamingController.java

@RequestMapping("/async3")
public void doGet(final HttpServletRequest req, final HttpServletResponse resp)
        throws ServletException, IOException {
    resp.setHeader("Connection", "Keep-Alive");
    resp.addHeader("Cache-Control", "private");
    resp.addHeader("Pragma", "no-cache");
    resp.setContentType("text/html;charset=utf-8");
    resp.flushBuffer();/*from   w ww. j  av a  2  s.  c  om*/

    //1??
    final AsyncContext asyncContext = req.startAsync();

    asyncContext.addListener(new AsyncListener() {
        @Override
        public void onComplete(final AsyncEvent event) throws IOException {
            queue.remove(event.getAsyncContext());
        }

        @Override
        public void onTimeout(final AsyncEvent event) throws IOException {
            event.getAsyncContext().complete();
            queue.remove(event.getAsyncContext());
        }

        @Override
        public void onError(final AsyncEvent event) throws IOException {
            queue.remove(event.getAsyncContext());
        }

        @Override
        public void onStartAsync(final AsyncEvent event) throws IOException {
        }
    });

    //????
    queue.add(asyncContext);

}

From source file:com.iflytek.edu.cloud.frame.web.filter.CORSFilter.java

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
        FilterChain filterChain) throws ServletException, IOException {
    String origin = request.getHeader("Origin");
    if (allowedOrigins.contains(origin)) {
        response.addHeader("Access-Control-Allow-Origin", origin);
        response.addHeader("Access-Control-Allow-Methods", "GET, POST");
        response.addHeader("Access-Control-Allow-Headers", "Content-Type");
    }//from  w w w .ja  va 2s.c  o m

    filterChain.doFilter(request, response);
}

From source file:org.jasig.cas.web.flow.AbstractLogoutAction.java

/**
 * Prevent caching by adding the appropriate headers.
 * Copied from the <code>preventCaching</code> method in the {@link WebContentGenerator} class.
 *
 * @param response the HTTP response./*from  www.  j a  v a 2 s  .c o m*/
 */
protected final void preventCaching(final HttpServletResponse response) {
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 1L);
    response.setHeader("Cache-Control", "no-cache");
    response.addHeader("Cache-Control", "no-store");
}

From source file:com.sentinel.config.TokenAuthenticationService.java

public String addAuthentication(HttpServletResponse response, UserAuthentication authentication) {
    LOG.debug("adding auth to request");
    final User user = authentication.getDetails();
    String token = tokenHandler.createTokenForUser(user);
    response.addHeader(AUTH_HEADER_NAME, token);
    return token;
}

From source file:Core.Security.CustomEntryPoint.java

public void commence(final HttpServletRequest request, final HttpServletResponse response,
        final AuthenticationException authException) throws IOException, ServletException {
    //Authentication failed, send error response.
    response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
    response.addHeader("WWW-Authenticate", "Basic realm=" + getRealmName() + "");
    PrintWriter writer = response.getWriter();
    writer.println("HTTP Status 401 : " + authException.getMessage());
}

From source file:com.nesscomputing.jmx.jolokia.JolokiaServlet.java

private void sendResponse(final HttpServletResponse resp, final String contentType, final String jsonTxt)
        throws IOException {
    resp.setCharacterEncoding("utf-8");
    resp.addHeader("Access-Control-Allow-Origin", "*");
    resp.setContentType(contentType);/*from w w w . jav  a2 s  .c o  m*/
    resp.setStatus(HttpServletResponse.SC_OK);
    final PrintWriter writer = resp.getWriter();
    writer.write(jsonTxt);
    writer.flush();
}

From source file:com.threewks.thundr.route.cors.CorsFilter.java

@Override
public <T> T before(HttpMethod method, HttpServletRequest req, HttpServletResponse resp) {
    String origin = origins == null ? "*" : origin(req, origins);
    resp.addHeader(Header.Vary, StringUtils.join(vary(), ", "));
    if (origin != null) {
        resp.addHeader(Header.AccessControlAllowOrigin, origin);
        if (withCredentials) {
            resp.addHeader(Header.AccessControlAllowCredentials, "true");
        }//w  ww .j ava 2s  .c o  m
        List<String> allowedHeaders = determineAllowedHeaders(headers, req);
        if (Expressive.isNotEmpty(allowedHeaders)) {
            resp.addHeader(Header.AccessControlAllowHeaders, StringUtils.join(allowedHeaders, ", "));
        }
        String requestedMethod = req.getHeader(Header.AccessControlRequestMethod);
        if (StringUtils.isNotBlank(requestedMethod)) {
            resp.addHeader(Header.AccessControlAllowMethods, requestedMethod);
        }
    }
    return null;
}

From source file:org.zht.framework.filter.jcaptcha.JCaptchaFilter.java

/**
 * ???./*from   w  w  w  .j a  v a 2 s. c  o m*/
 */
protected void genernateCaptchaImage(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException {

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

    ServletOutputStream out = response.getOutputStream();
    try {
        String captchaId = request.getSession(true).getId();
        BufferedImage challenge = (BufferedImage) captchaService.getChallengeForID(captchaId,
                request.getLocale());
        ImageIO.write(challenge, "jpg", out);
        out.flush();
    } catch (CaptchaServiceException e) {
        logger.error(e.getMessage(), e);
    } finally {
        out.close();
    }
}

From source file:org.openwms.core.uaa.api.UsersController.java

/**
 * Takes a newly created <tt>User</tt> instance and persists it. <p> <p> <table> <tr> <td>URI</td> <td>/users</td> </tr> <tr>
 * <td>Verb</td> <td>POST</td> </tr> <tr> <td>Auth</td> <td>YES</td> </tr> <tr> <td>Header</td> <td></td> </tr> </table> </p> <p>
 * Request Body <p>/*from  ww  w.java  2s . c  o  m*/
 * <pre>
 *   {
 *     "username" : "testuser"
 *   }
 * </pre>
 * <p> Parameters: <ul> <li>username (String):</li> The unique username. </ul> </p> <p> Response Body <p>
 * <pre>
 *   {
 *     "id" : 4711,
 *     "username" : "testuser",
 *     "token" : "876sjh36ejwhd",
 *     "version" : 1
 *   }
 * </pre>
 * <p> <ul> <li>id (Integer (32bit)):</li> The internal unique technical key for the stored instance. <li>username (String):</li> The
 * unique username. <li>token (String):</li> A generated token that is used to authenticate each request. <li>version (Integer
 * (32bit)):</li> A version number used internally for optimistic locking. </ul> </p>
 *
 * @param user The user to create
 * @return a responseVO
 */
@PostMapping
@ResponseBody
public ResponseEntity<Response<UserVO>> create(@RequestBody @Valid @NotNull UserVO user, HttpServletRequest req,
        HttpServletResponse resp) {
    User createdUser = service.create(m.map(user, User.class));
    resp.addHeader(HttpHeaders.LOCATION, getLocationForCreatedResource(req, createdUser.getPk().toString()));
    return buildResponse(HttpStatus.CREATED, translate(Messages.CREATED), Messages.CREATED);
}

From source file:com.fanya.p2p.front.user.jcaptcha.JCaptchaFilter.java

@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response,
        FilterChain filterChain) throws ServletException, IOException {

    response.setDateHeader("Expires", 0L);
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    response.setHeader("Pragma", "no-cache");
    response.setContentType("image/jpeg");

    String id = request.getRequestedSessionId();
    BufferedImage bi = JCaptcha.captchaService.getImageChallengeForID(id);

    ServletOutputStream out = response.getOutputStream();

    ImageIO.write(bi, "jpg", out);
    try {/*from   w  ww .  j  a v a2 s.  c  o m*/
        out.flush();
    } finally {
        out.close();
    }
}