Example usage for javax.servlet.http HttpServletResponse addHeader

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

  1. HOME
  2. Java
  3. javax
  4. javax.servlet.http.*
  5. HttpServletResponse
  6. 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.hmsinc.epicenter.webapp.chart.ChartRenderingController.java

/**
 * @param id// w w w  .j  a v a  2  s  . c o m
 * @param width
 * @param height
 * @param response
 * @throws IOException
 */
@RequestMapping("/chart")
public void getChart(@RequestParam("id") final String id, @RequestParam("width") final int width,
        @RequestParam("height") final int height, final HttpServletResponse response) throws IOException {

    Validate.notNull(id, "No chart specified.");
    Validate.notNull(width, "No width specified.");
    Validate.notNull(height, "No height specified.");

    final Element e = chartCache.get(id);
    Validate.notNull(e, "Invalid chart id " + id);

    final JFreeChart chart = (JFreeChart) e.getObjectValue();
    Validate.notNull(chart, "Chart was null!");

    response.setContentType("image/png");
    response.addHeader("cache-control", "must-revalidate");

    ChartUtilities.writeChartAsPNG(response.getOutputStream(), chart, width, height);

}

From source file:com.skymobi.monitor.action.LogsAction.java

@RequestMapping(value = "/projects/{projectName}/logs/download", method = RequestMethod.GET)
public void download(final HttpServletResponse response, ModelMap map, @PathVariable String projectName,
        LogQuery logQuery) throws IOException, ParseException {
    Project project = projectService.findProject(projectName);

    final MongoConverter converter = project.fetchMongoTemplate().getConverter();
    final DBCursor cursor = logsService.findLogs(projectName, logQuery, 100000);
    response.setContentType("file/txt;charset=utf-8");
    response.addHeader("content-disposition",
            String.format("attachment; filename=%s.txt", java.net.URLEncoder.encode("logs", "UTF-8")));
    response.setStatus(HttpServletResponse.SC_OK);

    while (cursor.hasNext()) {
        Log log = converter.read(Log.class, cursor.next());

        response.getWriter().println(log.toString());

    }/*from   w w  w  . j a  v  a2 s  .c o  m*/

}

From source file:org.jasig.cas.web.HealthCheckController.java

/** {@inheritDoc} */
protected ModelAndView handleRequestInternal(final HttpServletRequest request,
        final HttpServletResponse response) throws Exception {

    final HealthStatus healthStatus = this.healthCheckMonitor.observe();
    final StringBuilder sb = new StringBuilder();
    sb.append("Health: ").append(healthStatus.getCode());
    String name;/*from  w ww . j  av a 2  s .c o  m*/
    Status status;
    int i = 0;
    for (final Map.Entry<String, Status> entry : healthStatus.getDetails().entrySet()) {
        name = entry.getKey();
        status = entry.getValue();
        response.addHeader("X-CAS-" + name, String.format("%s;%s", status.getCode(), status.getDescription()));

        sb.append("\n\n\t").append(++i).append('.').append(name).append(": ");
        sb.append(status.getCode());
        if (status.getDescription() != null) {
            sb.append(" - ").append(status.getDescription());
        }
    }
    response.setStatus(healthStatus.getCode().value());
    response.setContentType("text/plain");
    response.getOutputStream().write(sb.toString().getBytes(response.getCharacterEncoding()));

    // Return null to signal MVC framework that we handled response directly
    return null;
}

From source file:org.osmsurround.ae.search.SearchController.java

@RequestMapping(value = "/search", method = RequestMethod.GET)
public @ResponseBody List<Amenity> get(BoundingBox boundingBox, HttpServletRequest request,
        HttpServletResponse resp) throws IOException {
    long time = System.currentTimeMillis();

    String[] show = request.getParameterValues("show");
    String[] hide = request.getParameterValues("hide");

    List<Amenity> amenities = searchService.findAmenities(boundingBox, new FilterSet(show, hide));
    log.info("found: " + amenities.size() + " in " + (System.currentTimeMillis() - time) + " ms");

    resp.setContentType("application/json");
    resp.setCharacterEncoding("UTF-8");
    resp.addHeader("Cache-Control", "no-cache");
    resp.addHeader("Pragma", "no-cache");
    return amenities;
}

From source file:it.polimi.diceH2020.launcher.controller.rest.DownloadsController.java

private void respondWithZipFile(@NotNull Map<String, String> files, @NotNull HttpServletResponse response) {
    File zipPath = null;/*from  ww w  . j av a 2  s  .  co m*/
    try {
        zipPath = fileUtility.createTempZip(files);
    } catch (IOException e) {
        logger.error("Problem creating zip file", e);
    }
    if (zipPath != null) {
        response.setContentType("application/zip");
        response.addHeader("Content-Disposition", "attachment; filename=\"test.zip\"");
        try (BufferedInputStream is = new BufferedInputStream(new FileInputStream(zipPath))) {
            IOUtils.copy(is, response.getOutputStream());
            response.flushBuffer();
        } catch (FileNotFoundException e) {
            logger.error("Zip file not found", e);
        } catch (IOException e) {
            logger.error("Cannot return zip file as an HTTP response", e);
        }
    }
}

From source file:mx.gob.cfe.documentos.web.DocumentoController.java

private void generaReporte(String tipo, List<Documento> documentos, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(documentos);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=documento.pdf");
        break;//ww w.  j a v a  2 s .c om

    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

From source file:org.jasig.cas.web.report.HealthCheckController.java

/**
 * Handle request./*w  w w  . j ava2s  .  c o  m*/
 *
 * @param request the request
 * @param response the response
 * @return the model and view
 * @throws Exception the exception
 */
@RequestMapping(method = RequestMethod.GET)
protected ModelAndView handleRequestInternal(final HttpServletRequest request,
        final HttpServletResponse response) throws Exception {

    final HealthStatus healthStatus = this.healthCheckMonitor.observe();
    final StringBuilder sb = new StringBuilder();
    sb.append("Health: ").append(healthStatus.getCode());
    String name;
    Status status;
    int i = 0;
    for (final Map.Entry<String, Status> entry : healthStatus.getDetails().entrySet()) {
        name = entry.getKey();
        status = entry.getValue();
        response.addHeader("X-CAS-" + name, String.format("%s;%s", status.getCode(), status.getDescription()));

        sb.append("\n\n\t").append(++i).append('.').append(name).append(": ");
        sb.append(status.getCode());
        if (status.getDescription() != null) {
            sb.append(" - ").append(status.getDescription());
        }
    }
    response.setStatus(healthStatus.getCode().value());
    response.setContentType("text/plain");
    response.getOutputStream().write(sb.toString().getBytes(response.getCharacterEncoding()));

    // Return null to signal MVC framework that we handled response directly
    return null;
}

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

/**
 * ??/*from   w  ww . ja 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 (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:io.fabric8.agent.download.DownloadManagerTest.java

@Test
public void testDownloadUsingAuthenticatedProxy() throws Exception {
    Server server = new Server(0);
    server.setHandler(new AbstractHandler() {
        @Override/*from  w w w  .  java2  s .  c o  m*/
        public void handle(String target, Request baseRequest, HttpServletRequest request,
                HttpServletResponse response) throws IOException, ServletException {
            String proxyAuth = request.getHeader("Proxy-Authorization");
            if (proxyAuth == null || proxyAuth.trim().equals("")) {
                response.setStatus(HttpServletResponse.SC_PROXY_AUTHENTICATION_REQUIRED);
                response.addHeader("Proxy-Authenticate", "Basic realm=\"Proxy Server\"");
                baseRequest.setHandled(true);
            } else {
                response.setStatus(HttpServletResponse.SC_OK);
                baseRequest.setHandled(true);
                response.getOutputStream().write(new byte[] { 0x42 });
                response.getOutputStream().close();
            }
        }
    });
    server.start();

    Properties custom = new Properties();
    custom.setProperty("org.ops4j.pax.url.mvn.proxySupport", "true");
    String settings = createMavenSettingsWithProxy(server.getConnectors()[0].getLocalPort());
    DownloadManager dm = createDownloadManager("http://relevant.not/maven2@id=central", settings, custom);

    try {
        StreamProvider df = download(dm, "mvn:x.y/z/1.0");
        assertNotNull(df);
        assertNotNull(df.getUrl());
        assertNotNull(df.getFile());
        assertEquals("z-1.0.jar", df.getFile().getName());
        LOG.info("Downloaded URL={}, FILE={}", df.getUrl(), df.getFile());
    } finally {
        server.stop();
    }
}

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

/**
 * ??/*  w  w  w .  j  a va 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);
    }
}