Example usage for javax.servlet.http HttpServletResponse getOutputStream

Introduction

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

Prototype

public ServletOutputStream getOutputStream() throws IOException;

Source Link

Document

Returns a ServletOutputStream suitable for writing binary data in the response.

Usage

From source file:MyServlet.java

public void doGet(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    Locale locale;//from  w w  w.  j  a  v  a  2  s  .  c  o  m
    DateFormat full;

    try {
        res.setContentType("text/plain; charset=UTF-8");
        //PrintWriter out = res.getWriter();
        PrintWriter out = new PrintWriter(new OutputStreamWriter(res.getOutputStream(), "UTF8"), true);

        locale = new Locale("en", "US");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("In English appropriate for the US:");
        out.println("Hello World!");
        out.println(full.format(new Date()));
        out.println();

        locale = new Locale("es", "");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("En Espa\u00f1ol:");
        out.println("\u00a1Hola Mundo!");
        out.println(full.format(new Date()));
        out.println();

        locale = new Locale("ja", "");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("In Japanese:");
        out.println("\u4eca\u65e5\u306f\u4e16\u754c");
        out.println(full.format(new Date()));
        out.println();

        locale = new Locale("zh", "");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("In Chinese:");
        out.println("\u4f60\u597d\u4e16\u754c");
        out.println(full.format(new Date()));
        out.println();

        locale = new Locale("ko", "");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("In Korean:");
        out.println("\uc548\ub155\ud558\uc138\uc694\uc138\uacc4");
        out.println(full.format(new Date()));
        out.println();

        locale = new Locale("ru", "");
        full = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);
        out.println("In Russian (Cyrillic):");
        out.print("\u0417\u0434\u0440\u0430\u0432\u0441\u0442");
        out.println("\u0432\u0443\u0439, \u041c\u0438\u0440");
        out.println(full.format(new Date()));
        out.println();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:org.springside.modules.security.jcaptcha.JCaptchaFilter.java

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

    ServletUtils.setDisableCacheHeader(response);
    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:com.gsr.myschool.server.reporting.convocation.ConvocationController.java

@RequestMapping(value = "test", method = RequestMethod.GET, produces = "application/pdf")
@ResponseStatus(HttpStatus.OK)//  ww w .  j  av a2  s. c om
public void generateReportTest(@RequestParam String niveauId, @RequestParam String sessionId,
        HttpServletResponse response) {
    ReportDTO dto = convocationService.generateConvocationTest(Long.valueOf(niveauId), Long.valueOf(sessionId));
    try {
        response.addHeader("Content-Disposition", "attachment; filename=convocation.pdf");

        BufferedOutputStream outputStream = new BufferedOutputStream(response.getOutputStream());
        byte[] result = reportService.generatePdf(dto);

        outputStream.write(result, 0, result.length);
        outputStream.flush();
        outputStream.close();
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

---

From source file:de.iew.raspimotion.controllers.MotionJpegController.java

@RequestMapping(value = "stream/{imagename:.+}")
public void streamAction(HttpServletResponse response, @PathVariable String imagename) throws Exception {
    Assert.isTrue(validateImagename(imagename));

    OutputStream out = response.getOutputStream();
    try {//from  w w w. j a v a2s.  co m
        FileDescriptor file = this.fileDao.getFileLastCreated(imagename);

        if (file == null) {
            throw new NoSuchElementException("Image was not found");
        }

        sendCachingHeaders(response);
        response.setStatus(HttpServletResponse.SC_OK);
        response.setContentType("multipart/x-mixed-replace;boundary=BOUNDARY");

        writeFrameBoundary(out);
        writeFrame(out, file);

        long processingTime;
        long startTs;

        double fpsTime = 1000 / this.fps;
        long sleepTime;

        while (true) {
            startTs = System.currentTimeMillis();
            file = this.fileDao.getFileLastCreated(imagename);

            writeFrame(out, file);

            processingTime = System.currentTimeMillis() - startTs;

            if (log.isDebugEnabled()) {
                log.debug("Zeitdauer fr gesamten Vorgang: " + processingTime);
            }

            sleepTime = (long) (fpsTime - processingTime);

            if (log.isDebugEnabled()) {
                log.debug("Schlafe " + sleepTime);
            }

            if (sleepTime > 0) {
                Thread.sleep(sleepTime);
            }
        }
    } catch (Exception e) {
        if (log.isErrorEnabled()) {
            log.error("Motion JPEG handling aborted", e);
        }
        try {
            out.flush();
            out.close();
        } catch (Exception ex) {
            if (log.isDebugEnabled()) {
                log.debug("Closing failed", ex);
            }
        }
    }
}

---

From source file:org.magnum.dataup.VideoSvc.java

@RequestMapping(value = VIDEO_DATA_PATH, method = RequestMethod.GET)
public void getData(@PathVariable(ID_PARAMETER) long id, HttpServletResponse response) throws IOException {
    VideoFileManager videoDataMgr = VideoFileManager.get();
    Video v = getVideoById(id);//from   ww  w  . ja va  2s.  c o  m

    if (v != null) {
        if (videoDataMgr.hasVideoData(v)) {
            videoDataMgr.copyVideoData(v, response.getOutputStream());
        }
    } else {
        response.setStatus(404);
    }
}

---

From source file:org.openxdata.designer.server.FileOpenServlet.java

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
        throws ServletException, IOException {
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", -1);
    response.setHeader("Cache-Control", "no-store");

    response.setContentType("text/xml; charset=utf-8");
    response.getOutputStream().print((String) request.getSession().getAttribute(KEY_FILE_CONTENTS));
}

---

From source file:org.eclipse.jgit.lfs.server.LfsProtocolServlet.java

@Override
protected void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException {
    Writer w = new BufferedWriter(new OutputStreamWriter(res.getOutputStream(), UTF_8));

    Reader r = new BufferedReader(new InputStreamReader(req.getInputStream(), UTF_8));
    LfsRequest request = gson.fromJson(r, LfsRequest.class);
    String path = req.getPathInfo();

    res.setContentType(CONTENTTYPE_VND_GIT_LFS_JSON);
    LargeFileRepository repo = null;/*  w  w w .  j  a va2 s  . c o  m*/
    try {
        repo = getLargeFileRepository(request, path);
        if (repo == null) {
            String error = MessageFormat.format(LfsText.get().lfsFailedToGetRepository, path);
            LOG.error(error);
            throw new LfsException(error);
        }
        res.setStatus(SC_OK);
        TransferHandler handler = TransferHandler.forOperation(request.operation, repo, request.objects);
        gson.toJson(handler.process(), w);
    } catch (LfsValidationError e) {
        sendError(res, w, SC_UNPROCESSABLE_ENTITY, e.getMessage());
    } catch (LfsRepositoryNotFound e) {
        sendError(res, w, SC_NOT_FOUND, e.getMessage());
    } catch (LfsRepositoryReadOnly e) {
        sendError(res, w, SC_FORBIDDEN, e.getMessage());
    } catch (LfsRateLimitExceeded e) {
        sendError(res, w, SC_RATE_LIMIT_EXCEEDED, e.getMessage());
    } catch (LfsBandwidthLimitExceeded e) {
        sendError(res, w, SC_BANDWIDTH_LIMIT_EXCEEDED, e.getMessage());
    } catch (LfsInsufficientStorage e) {
        sendError(res, w, SC_INSUFFICIENT_STORAGE, e.getMessage());
    } catch (LfsUnavailable e) {
        sendError(res, w, SC_SERVICE_UNAVAILABLE, e.getMessage());
    } catch (LfsUnauthorized e) {
        sendError(res, w, SC_UNAUTHORIZED, e.getMessage());
    } catch (LfsException e) {
        sendError(res, w, SC_INTERNAL_SERVER_ERROR, e.getMessage());
    } finally {
        w.flush();
    }
}

---

From source file:net.mindengine.blogix.web.BlogixServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse res) {
    String uri = req.getRequestURI();
    try {/* ww  w  . j a  va  2 s .c o m*/
        res.setStatus(200);
        String contentType = findContentTypeFor(uri);
        if (contentType != null) {
            res.setContentType(contentType);
        }
        blogix.processUri(uri, res.getOutputStream());
    } catch (Throwable e) {
        res.setStatus(400);
        printResponseText(res, ExceptionUtils.getMessage(e) + "\n" + ExceptionUtils.getStackTrace(e));
    }
}

---

From source file:PDFServlet.java

public void doGet(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    String presentationtype = request.getParameter("presentationtype");
    Document document = new Document();
    try {//from ww  w.  j  ava 2  s  . c  o  m
        if ("pdf".equals(presentationtype)) {
            response.setContentType("application/pdf");
            PdfWriter.getInstance(document, response.getOutputStream());
        }
        document.open();
        document.add(new Paragraph("Hello World"));
        document.add(new Paragraph(new Date().toString()));
    } catch (DocumentException de) {
        de.printStackTrace();
        System.err.println("document: " + de.getMessage());
    }
    document.close();
}

---

From source file:uk.org.iay.mdq.server.ResultTextView.java

@Override
public void render(final Map<String, ?> model, final HttpServletRequest request,
        final HttpServletResponse response) throws Exception {

    log.debug("rendering as {}", getContentType());
    final Result result = (Result) model.get("result");

    if (result.isNotFound()) {
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
        return;/*from   w  w  w.  java2 s.com*/
    }

    OutputStream out = response.getOutputStream();

    response.setContentType(new MediaType("text", "plain", Charset.forName("UTF-8")).toString());
    final Writer w = new OutputStreamWriter(out, Charset.forName("UTF-8"));

    final Representation norm = result.getRepresentation();
    final byte[] bytes = norm.getBytes();
    w.write("Query result is:\n");
    w.write("   " + bytes.length + " bytes\n");
    w.write("   ETag is " + norm.getETag() + "\n");
    w.write("\n");
    w.write(new String(bytes, Charset.forName("UTF-8")));
}

---

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