Example usage for javax.servlet.http HttpServletResponse setHeader

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

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  6. 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:net.sf.j2ep.responsehandlers.OptionsResponseHandler.java

/**
 * Will check if we are to handle this request, if so 
 * the http methods allowed by this proxy is returned in the 
 * Allow header./*w  ww  .java 2s .c  o  m*/
 * If it is a request meant for the backing server its
 * allowed method will be returned.
 * 
 * @see net.sf.j2ep.model.ResponseHandler#process(javax.servlet.http.HttpServletResponse)
 */
public void process(HttpServletResponse response) {
    if (useOwnAllow) {
        response.setStatus(HttpServletResponse.SC_OK);
        response.setHeader("allow", AllowedMethodHandler.getAllowHeader());
        response.setHeader("Connection", "close");
        response.setHeader("content-length", "0");
    } else {
        setHeaders(response);
        response.setStatus(getStatusCode());
        String allow = method.getResponseHeader("allow").getValue();
        response.setHeader("allow", AllowedMethodHandler.processAllowHeader(allow));
        Header contentLength = method.getResponseHeader("Content-Length");
        if (contentLength == null || contentLength.getValue().equals("0")) {
            response.setHeader("Content-Length", "0");
        } else {
            try {
                sendStreamToClient(response);
            } catch (IOException e) {
                log.error("Problem with writing response stream, solving by setting Content-Length=0", e);
                response.setHeader("Content-Length", "0");
            }
        }
    }
}

From source file:net.bafeimao.umbrella.web.controller.CaptchaController.java

@RequestMapping("")
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
    response.setDateHeader("Expires", 0);
    // Set standard HTTP/1.1 no-cache headers.
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    // Set standard HTTP/1.0 no-cache header.
    response.setHeader("Pragma", "no-cache");
    // return a jpeg
    response.setContentType("image/jpeg");
    // create the text for the image
    String capText = captchaProducer.createText();
    // store the text in the session
    request.getSession().setAttribute(Constants.KAPTCHA_SESSION_KEY, capText);
    // create the image with the text
    BufferedImage bi = captchaProducer.createImage(capText);
    ServletOutputStream out = response.getOutputStream();
    // write the data out
    ImageIO.write(bi, "jpg", out);

    try {/*from   ww  w.j a  va  2s .  co  m*/
        out.flush();
    } finally {
        out.close();
    }

    return null;
}

From source file:com.google.code.pathlet.web.json.JsonResponseProcessor.java

public boolean processResult(Path requestPath, Object returnResult, HttpServletResponse response)
        throws JsonResourceIOException {
    response.setContentType("text/plain");
    response.setHeader("Pragma", "no-cache");
    response.setHeader("Cache-Control", "no-cache, must-revalidate");

    try {//from   w w w.  j  a v  a  2 s.c o m

        if (returnResult != null) {
            if (String.class.isAssignableFrom(returnResult.getClass())) {
                //If returnResult is String, it will not convert into JSON, but directly write into response writer.
                response.getWriter().write((String) returnResult);
            } else {
                writeResult(response.getWriter(), returnResult);
            }
        }

        response.flushBuffer();
    } catch (Exception e) {
        throw new JsonResourceIOException(e);
    }

    return false;
}

From source file:com.controlj.green.istat.web.BookmarkServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    //System.out.println("Area Servlet called at:"+new Date());

    resp.setHeader("Expires", "Wed, 01 Jan 2003 12:00:00 GMT");
    resp.setHeader("Cache-Control", "no-cache");
    ServletOutputStream out = resp.getOutputStream();
    try {//from   ww  w . j  a v a  2  s  .  co  m
        writeLocations(out, req.getParameterValues("bookmarks"), req);
    } catch (Exception e) {
        Logging.LOGGER.println("Unexpected exception:");
        e.printStackTrace(Logging.LOGGER);

        throw new ServletException(e);
    }
    /*
    out.println("[");
    out.println("{ display:'Main Conf Room', id:'mainconf'},");
    out.println("{ display:'Board Room', id:'boardroom'},");
    out.println("{ display:'Room 235', id:'room235'}");
    out.println("]");
    */
}

From source file:info.toegepaste.www.service.PdfServiceImpl.java

@Override
public void exportPdf(File temp) throws FileNotFoundException, IOException {
    FacesContext fc = FacesContext.getCurrentInstance();
    HttpServletResponse response = (HttpServletResponse) fc.getExternalContext().getResponse();

    response.setHeader("Content-Disposition", "attachment; filename=rapport.pdf");
    response.setContentLength((int) temp.length());

    ServletOutputStream out = null;/*from  w  w w . j  a  v  a2 s . c  om*/

    FileInputStream input = new FileInputStream(temp);
    byte[] buffer = new byte[1024];
    out = response.getOutputStream();
    int i = 0;
    while ((i = input.read(buffer)) != -1) {
        out.write(buffer);
        out.flush();
    }

    fc.responseComplete();
}

From source file:org.openmrs.module.clinicalsummary.web.controller.printer.PrintSummariesController.java

/**
 * Attach the file to the servlet response body
 *
 * @param response// ww w  .  j a v  a  2s.  c  om
 *       the response
 * @param file
 *       the file
 *
 * @throws Exception
 */
private void attachAndPurgeFile(HttpServletResponse response, File file) throws Exception {
    response.setHeader("Content-Disposition", "attachment; filename=" + file.getName());
    response.setContentType(MimeConstants.MIME_PDF);
    response.setContentLength((int) file.length());

    FileCopyUtils.copy(new FileInputStream(file), response.getOutputStream());

    if (!file.delete()) {
        log.info("Deleting temporary file failed!");
    }
}

From source file:net.webpasswordsafe.server.report.JasperReportServlet.java

private void setNoCache(HttpServletResponse res) {
    res.setHeader("Pragma", "no-cache");
    res.setHeader("Cache-Control", "no-cache,no-store");
    res.setDateHeader("Expires", 0);
}

From source file:controllers.FeatureController.java

@RequestMapping("/getXls")
public void getXls(Map<String, Object> model, HttpServletResponse response) throws Exception {
    response.setContentType("application/octet-stream");
    response.setHeader("Content-Disposition", "attachment; filename=Feature.xls");
    featureService.getXls().write(response.getOutputStream());
}

From source file:io.onedecision.engine.decisions.impl.LocationHeaderInterceptor.java

@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler,
        Exception ex) throws Exception {
    System.out.println("---Request Completed---");
    if (response.getStatus() == HttpStatus.CREATED.value()) {
        response.setHeader("Location", String.format("%1$s", request.getRequestURL()));
    }//w w w. ja  v a2  s  .co m
}

From source file:APIRequest.java

public void doPost(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    //2. Merchant server makes an api request to the snap backend to get the SNAP_TOKEN
    //initialize settings.
    response.setHeader("Accept", "application/json");
    response.setContentType("application/json");
    response.setHeader("Authorization", Base64.getEncoder().encodeToString((serverKey + ":").getBytes()));

    String orderID = request.getParameterValues("gross_amount")[0];
    int grossAmount = Integer.parseInt(request.getParameterValues("gross_amount")[0]);
    //dummy data/*from  w ww .  ja  v  a 2 s  . c o  m*/
    orderID = "Testing Order-01";
    grossAmount = 150000;

    //JSON object
    JSONObject jso = new JSONObject();
    JSONObject transactionDetails = new JSONObject();
    try {
        transactionDetails.put("order_id", orderID);
        transactionDetails.put("gross_amount", grossAmount);
        jso.put("transaction_details", transactionDetails);
    } catch (JSONException ex) {
        Logger.getLogger(APIRequest.class.getName()).log(Level.SEVERE, null, ex);
    }
    // send the jso to the server.
    response.getWriter().write(jso.toString());
    //3. Snap backend responds to the api call with the SNAP_TOKEN
}