Example usage for javax.servlet ServletOutputStream write

Introduction

In this page you can find the example usage for javax.servlet ServletOutputStream write.

Prototype

public abstract void write(int b) throws IOException;

Source Link

Document

Writes the specified byte to this output stream.

Usage

From source file:dijalmasilva.controllers.ControladorIdolo.java

@RequestMapping("/image/{id}")
public void carregaImagem(@PathVariable Long id, HttpServletResponse resp) {
    ServletOutputStream out = null;
    try {//  ww w  . j  av a  2s. co m
        Idolo idolo = serviceIdolo.buscar(id);
        out = resp.getOutputStream();
        out.write(idolo.getFoto());
        out.flush();
    } catch (IOException ex) {
        ex.printStackTrace();
    } finally {
        try {
            out.close();
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }
}

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From source file:com.jaspersoft.jasperserver.war.themes.ThemeResolverServlet.java

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    // Check if we can find a resource in the current theme
    //String resPath = req.getRequestURI().substring((req.getContextPath() + req.getServletPath()).length());
    String resPath = req.getRequestURI().substring(req.getContextPath().length() + 1);
    ThemeResource themeResource = themeCache.getThemeResource(resPath);
    if (themeResource == null) {
        resp.sendError(404);/*from ww w  .  j av  a  2 s.  c o  m*/
        return;
    }

    // Set contentType
    String filename = resPath;
    if (filename.indexOf("/") >= 0) {
        filename = filename.substring(filename.lastIndexOf("/") + 1);
    }
    String contentType = servletContext.getMimeType(filename);
    if (contentType == null) {
        log.error("Cannot detect a response content type for the file : " + filename);
        resp.sendError(404);
        return;
    }
    resp.setContentType(contentType);

    // Get Last Modified date
    Date lastModified = themeResource.getLastModified();
    // Get rid of ms
    lastModified.setTime(lastModified.getTime() / 1000 * 1000);

    // Set cache controlling HTTP Response Headers
    DateFormat df = getFormat(req.getLocale());
    resp.setHeader("Cache-Control", "max-age=" + expiresInSecs + ", public");
    resp.setHeader("Pragma", "");
    resp.setHeader("Last-Modified", df.format(lastModified));
    resp.setHeader("Expires", df.format(new Date(new Date().getTime() + expiresInSecs * 1000)));

    // Send 304 if resource has not been modified since last time requested
    String ifModSince = req.getHeader("If-Modified-Since");
    try {
        Date modDate = df.parse(ifModSince);
        if (!lastModified.after(modDate)) {
            resp.setStatus(304);
            return;
        }
    } catch (Exception e) {
    }

    // Send the full content
    resp.setContentLength(themeResource.getContent().length);
    ServletOutputStream os = resp.getOutputStream();
    os.write(themeResource.getContent());
    os.flush();
    os.close();
}

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From source file:tilt.handler.get.TiltImageHandler.java

public void handle(HttpServletRequest request, HttpServletResponse response, String urn) throws TiltException {
    try {/*  w  ww . j  av a 2  s.  c  om*/
        imageType = ImageType.read(request.getParameter(Params.PICTYPE));
        docid = request.getParameter(Params.DOCID);
        pageid = request.getParameter(Params.PAGEID);
        url = request.getParameter(Params.URL);
        if ((docid != null && pageid != null) || url != null) {
            if (url == null || url.length() == 0)
                url = Utils.getUrl(request.getServerName(), docid, pageid);
            Picture p = PictureRegistry.get(url);
            if (p == null) {
                TextIndex text = null;
                PictureRegistry.prune();
                Double[][] coords = getCropRect(request.getServerName(), docid, pageid);
                Options opts = Options.get(request.getServerName(), docid);
                String imageUrl = Utils.getUrl(request.getServerName(), docid, pageid);
                String url = composeTextUrl(request, docid, pageid);
                String textParam = Utils.getFromUrl(url);
                if (textParam != null)
                    text = new TextIndex(textParam, "en_GB");
                InetAddress poster = getIPAddress(request);
                p = new Picture(opts, imageUrl, text, coords, poster);
            }
            byte[] pic = null;
            switch (imageType) {
            case load:
                p.load();
            case original:
                pic = p.getOrigData();
                break;
            case preflight:
                pic = p.getPreflightData();
                break;
            case greyscale:
                pic = p.getGreyscaleData();
                break;
            case twotone:
                pic = p.getTwoToneData();
                break;
            case cleaned:
                pic = p.getCleanedData();
                break;
            case reconstructed:
                pic = p.getReconstructedData();
                break;
            case baselines:
                pic = p.getBaselinesData();
                break;
            case words:
                pic = p.getWordsData();
                break;
            case link:
                pic = p.getGreyscaleData();
                break;
            }
            if (pic != null) {
                ByteArrayInputStream bis = new ByteArrayInputStream(pic);
                String mimeType = URLConnection.guessContentTypeFromStream(bis);
                response.setContentType(mimeType);
                ServletOutputStream sos = response.getOutputStream();
                sos.write(pic);
                sos.close();
            } else {
                response.getOutputStream().println("<p>image " + docid + " not found</p>");
            }
        } else
            response.getOutputStream().println("<p>please specify a docid and pageid, or a url</p>");
    } catch (Exception e) {
        throw new ImageException(e);
    }
}

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From source file:be.fedict.eid.dss.webapp.DocumentViewerServlet.java

private void handleDownloadRequest(String resourceId, HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {

    LOG.debug("handle download: " + resourceId);

    HttpSession httpSession = request.getSession();
    DocumentRepository documentRepository = new DocumentRepository(httpSession);
    String contentType = documentRepository.getDocumentContentType();
    if (null == contentType) {
        response.setContentType("text/plain");
        PrintWriter printWriter = response.getWriter();
        printWriter.println("No document to be signed.");
        return;// ww  w  .j  a  v  a  2 s  .c om
    }

    byte[] documentData = documentRepository.getDocument();

    DSSDocumentService documentService = super.findDocumentService(contentType);
    if (null != documentService) {
        DocumentVisualization documentVisualization;
        try {
            documentVisualization = documentService.findDocument(documentData, resourceId);
        } catch (Exception e) {
            throw new ServletException("error finding the document: " + e.getMessage(), e);
        }
        if (null != documentVisualization) {
            contentType = documentVisualization.getBrowserContentType();
            documentData = documentVisualization.getBrowserData();
        }
    }

    setResponseHeaders(request, response);

    response.setContentType(contentType);
    response.setContentLength(documentData.length);
    ServletOutputStream out = response.getOutputStream();
    out.write(documentData);
    out.flush();
}

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From source file:gxu.software_engineering.shen10.market.core.MappingJacksonJsonpView.java

@Override
public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response)
        throws Exception {
    //      utf8/*from   w w w.  j a  v  a2  s.  com*/
    // String charset = response.getCharacterEncoding();
    // if (charset == null || charset.length() == 0) {
    //    response.setCharacterEncoding(DEFAULT_CHARSET);
    // }

    if (request.getMethod().toUpperCase().equals("GET")) {
        if (request.getParameterMap().containsKey("callback")) {
            ServletOutputStream ostream = response.getOutputStream();
            //            try
            ostream.write(new String("try{" + request.getParameter("callback") + "(").getBytes());
            super.render(model, request, response);
            ostream.write(new String(");}catch(e){}").getBytes());
            //            ????closeflushspring?
            //            ?
            ostream.flush();
            ostream.close();
        } else {
            super.render(model, request, response);
        }
    } else {
        super.render(model, request, response);
    }
}

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From source file:com.ningpai.common.util.CaptchaController.java

@RequestMapping("/captcha")
public void writeCaptcha(HttpServletRequest request, HttpServletResponse response) {
    byte[] captchaChallengeAsJpeg = null;
    // the output stream to render the captcha image as jpeg into
    ByteArrayOutputStream jpegOutputStream = new ByteArrayOutputStream();
    try {/*from w  ww  .j  a v  a  2  s  . c  om*/
        // get the session id that will identify the generated captcha.
        // the same id must be used to validate the response, the session id is a good candidate!
        String captchaId = request.getSession().getId();
        BufferedImage challenge = captchaService.getImageChallengeForID(captchaId, request.getLocale());
        try {
            ImageIO.write(challenge, CAPTCHA_IMAGE_FORMAT, jpegOutputStream);
        } catch (IOException e) {
        }
    } catch (IllegalArgumentException e) {
        try {
            response.sendError(HttpServletResponse.SC_NOT_FOUND);
        } catch (IOException e1) {
        }
        return;
    } catch (CaptchaServiceException e) {
        try {
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        } catch (IOException e1) {
        }
        return;
    }

    captchaChallengeAsJpeg = jpegOutputStream.toByteArray();

    // flush it in the response
    response.setHeader("Cache-Control", "no-store");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    response.setContentType("image/" + CAPTCHA_IMAGE_FORMAT);

    ServletOutputStream responseOutputStream;
    try {
        responseOutputStream = response.getOutputStream();
        responseOutputStream.write(captchaChallengeAsJpeg);
        responseOutputStream.flush();
        responseOutputStream.close();
    } catch (IOException e) {
    }

}

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From source file:org.toobsframework.servlet.filters.export.XLSExportFilter.java

/**
 * Pipe the fetched *.xls <fo> xml output from the ComponentLayoutManager
 * through the FO transformer in order to get a viable pdf file. Set the
 * response headers, response stream, and the browser should pick the pdf up
 * and handle it properly.//from  ww  w . j  a v  a 2 s .com
 */
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    this.config.getServletContext().log("XLSFilter - doFilter(...)");
    log.debug("ENTER doFilter(...)");

    HttpServletResponse httpResponse = (HttpServletResponse) response;
    HttpServletRequest httpRequest = (HttpServletRequest) request;

    // set headers so browser knows it's looking at a pdf
    // httpResponse.setHeader("Content-Disposition", "attachment");

    // first chain the filters... ie do everything else first... this filter
    // will work on the data that comes back after the transform has already
    // been run
    FilterResponseWrapper wrapper = new FilterResponseWrapper(httpResponse);
    chain.doFilter(request, wrapper);

    String fileName;
    String exportMode = httpRequest.getParameter("exportMode");
    if ("table".equals(exportMode)) {
        fileName = httpRequest.getParameter("component") + ".xls";
    } else {
        fileName = httpRequest.getRequestURI().substring(contextName.length() + 1).replace("xxls", "xls");
    }

    // set headers so browser knows it's looking at a pdf
    httpResponse.setContentType("application/vnd.ms-excel");
    httpResponse.setHeader("Pragma", "public");
    httpResponse.setDateHeader("Expires", 0);
    httpResponse.setHeader("Cache-Control", "must-revalidate, post-check=0, pre-check=0");
    httpResponse.setHeader("Cache-Control", "public");
    httpResponse.setHeader("Content-Description", "File Transfer");
    httpResponse.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");

    // now fetch the output stream and response data
    ServletOutputStream httpOutputStream = httpResponse.getOutputStream();
    byte[] responseData = wrapper.getData();

    httpOutputStream.write(responseData);

    if (log.isDebugEnabled()) {
        log.debug("EXIT doFilter(...)");
    }
}

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From source file:com.webpagebytes.cms.utility.HttpServletToolbox.java

public void writeBodyResponseAsJson(HttpServletResponse response, String data, Map<String, String> errors) {

    try {/* w w w .j  a v  a  2s  .  c  o m*/
        org.json.JSONObject jsonResponse = new org.json.JSONObject();
        org.json.JSONObject jsonErrors = new org.json.JSONObject();
        if (errors == null || errors.keySet().size() == 0) {
            jsonResponse.put("status", "OK");
        } else {
            jsonResponse.put("status", "FAIL");
            for (String key : errors.keySet()) {
                jsonErrors.put(key, errors.get(key));
            }
        }
        jsonResponse.put("errors", jsonErrors);
        jsonResponse.put("payload", data);
        String jsonString = jsonResponse.toString();
        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        ServletOutputStream writer = response.getOutputStream();
        byte[] utf8bytes = jsonString.getBytes("UTF-8");
        writer.write(utf8bytes);
        response.setContentLength(utf8bytes.length);
        writer.flush();

    } catch (Exception e) {
        try {
            String errorResponse = "{\"status\":\"FAIL\",\"payload\":\"{}\",\"errors\":{\"reason\":\"WB_UNKNOWN_ERROR\"}}";
            ServletOutputStream writer = response.getOutputStream();
            response.setContentType("application/json");
            byte[] utf8bytes = errorResponse.getBytes("UTF-8");
            response.setContentLength(utf8bytes.length);
            writer.write(utf8bytes);
            writer.flush();
        } catch (IOException ioe) {
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        }
    }

}

---

From source file:com.webpagebytes.cms.utility.HttpServletToolbox.java

public void writeBodyResponseAsJson(HttpServletResponse response, org.json.JSONObject data,
        Map<String, String> errors) {

    try {//from ww  w .  jav  a2  s .c  o m
        org.json.JSONObject jsonResponse = new org.json.JSONObject();
        org.json.JSONObject jsonErrors = new org.json.JSONObject();
        if (errors == null || errors.keySet().size() == 0) {
            jsonResponse.put("status", "OK");
        } else {
            jsonResponse.put("status", "FAIL");
            for (String key : errors.keySet()) {
                jsonErrors.put(key, errors.get(key));
            }
        }
        jsonResponse.put("errors", jsonErrors);
        jsonResponse.put("payload", data);
        String jsonString = jsonResponse.toString();
        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        ServletOutputStream writer = response.getOutputStream();
        byte[] utf8bytes = jsonString.getBytes("UTF-8");
        writer.write(utf8bytes);
        response.setContentLength(utf8bytes.length);
        writer.flush();

    } catch (Exception e) {
        try {
            String errorResponse = "{\"status\":\"FAIL\",\"payload\":\"{}\",\"errors\":{\"reason\":\"WB_UNKNOWN_ERROR\"}}";
            ServletOutputStream writer = response.getOutputStream();
            response.setContentType("application/json");
            byte[] utf8bytes = errorResponse.getBytes("UTF-8");
            response.setContentLength(utf8bytes.length);
            writer.write(utf8bytes);
            writer.flush();
        } catch (IOException ioe) {
            response.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        }
    }

}

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From source file:org.b5chat.crossfire.web.FaviconServlet.java

/**
 * Writes out a <code>byte</code> to the ServletOuputStream.
 *
 * @param bytes the bytes to write to the <code>ServletOutputStream</code>.
 *///from   w ww  . j  a  v a 2  s .c  om
private void writeBytesToStream(byte[] bytes, HttpServletResponse response) {
    response.setContentType(CONTENT_TYPE);

    // Send image
    try {
        ServletOutputStream sos = response.getOutputStream();
        sos.write(bytes);
        sos.flush();
        sos.close();
    } catch (IOException e) {
        // Do nothing
    }
}

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