Example usage for javax.servlet.http HttpServletResponse setContentType

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

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Introduction

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

Prototype


public void setContentType(String type);

Source Link

Document

Sets the content type of the response being sent to the client, if the response has not been committed yet.

Usage

From source file:org.iish.visualmets.util.ControllerUtils.java

/**
 * Determines the type of template: JSON or XML.
 * When the client uses a callback function with a tagname, it is assumed the response is JSON.
 * If NULL the XML template is selected.
 *
 * @param viewName Prefix of the template
 * @param callback JSONP tagname//from  w w  w  .  j  a  va 2 s  .c  om
 * @param response
 * @return the FreeMarker template
 */
public static ModelAndView createModelAndViewPage(String viewName, String callback,
        HttpServletResponse response) {

    String template = (callback == null) ? viewName.concat(".xml") : viewName.concat(".json");

    ModelAndView mav = new ModelAndView(template);

    if (callback == null) {
        response.setContentType("text/xml; charset=utf-8");
    } else {
        response.setContentType("application/json; charset=utf-8");
        mav.addObject("callback", callback.trim());
    }

    return mav;
}

From source file:controller.file.FileUploader.java

public static void fileDownloader(HttpServletRequest request, HttpServletResponse response) {
    PrintWriter out = null;//from ww  w.  j a v  a  2s  . c om
    try {
        String filename = "foo.xml";
        String filepath = "/tmp/";
        out = response.getWriter();
        response.setContentType("APPLICATION/OCTET-STREAM");
        response.setHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");
        java.io.FileInputStream fileInputStream = new java.io.FileInputStream(filepath + filename);
        int i;
        while ((i = fileInputStream.read()) != -1) {
            out.write(i);
        }
        fileInputStream.close();
        out.close();
    } catch (IOException ex) {
        Logger.getLogger(FileUploader.class.getName()).log(Level.SEVERE, null, ex);
    } finally {
        out.close();
    }
}

From source file:cn.guoyukun.spring.web.utils.DownloadUtils.java

public static void download(HttpServletRequest request, HttpServletResponse response, String displayName,
        byte[] bytes) throws IOException {

    if (ArrayUtils.isEmpty(bytes)) {
        response.setContentType("text/html;charset=utf-8");
        response.setCharacterEncoding("utf-8");
        response.getWriter().write("??");
        return;// w w  w .j ava  2  s .com
    }

    String userAgent = request.getHeader("User-Agent");
    boolean isIE = (userAgent != null) && (userAgent.toLowerCase().indexOf("msie") != -1);

    response.reset();
    response.setHeader("Pragma", "No-cache");
    response.setHeader("Cache-Control", "must-revalidate, no-transform");
    response.setDateHeader("Expires", 0L);

    response.setContentType("application/x-download");
    response.setContentLength((int) bytes.length);

    String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    displayFilename = displayFilename.replace(" ", "_");
    if (isIE) {
        displayFilename = URLEncoder.encode(displayFilename, "UTF-8");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + displayFilename + "\"");
    } else {
        displayFilename = new String(displayFilename.getBytes("UTF-8"), "ISO8859-1");
        response.setHeader("Content-Disposition", "attachment;filename=" + displayFilename);
    }
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(new ByteArrayInputStream(bytes));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:br.org.ipti.guigoh.util.DownloadService.java

public static synchronized void downloadFile(File file, String mimeType) {
    FacesContext facesContext = FacesContext.getCurrentInstance();
    ExternalContext context = facesContext.getExternalContext();
    HttpServletResponse response = (HttpServletResponse) context.getResponse();
    response.setHeader("Content-Disposition", "attachment;filename=\"" + file.getName() + "\"");
    response.setContentLength((int) file.length());
    response.setContentType(mimeType);
    try {/*  www .  ja  v  a2 s  .c  om*/
        OutputStream out;
        try (FileInputStream in = new FileInputStream(file)) {
            out = response.getOutputStream();
            byte[] buf = new byte[(int) file.length()];
            int count;
            while ((count = in.read(buf)) >= 0) {
                out.write(buf, 0, count);
            }
        }
        out.flush();
        out.close();
        facesContext.responseComplete();
    } catch (IOException ex) {
        System.out.println("Error in downloadFile: " + ex.getMessage());
    }
}

From source file:com.eryansky.common.web.utils.DownloadUtils.java

/**
 * //from   w  ww.  ja  va2s  . c  om
 * @param request
 * @param response
 * @param inputStream ?
 * @param displayName ??
 * @throws IOException
 */
public static void download(HttpServletRequest request, HttpServletResponse response, InputStream inputStream,
        String displayName) throws IOException {
    response.reset();
    WebUtils.setNoCacheHeader(response);

    response.setContentType("application/x-download");
    response.setContentLength((int) inputStream.available());

    //        String displayFilename = displayName.substring(displayName.lastIndexOf("_") + 1);
    //        displayFilename = displayFilename.replace(" ", "_");
    WebUtils.setDownloadableHeader(request, response, displayName);
    BufferedInputStream is = null;
    OutputStream os = null;
    try {

        os = response.getOutputStream();
        is = new BufferedInputStream(inputStream);
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:net.shopxx.util.JsonUtil.java

/**
 * ?JSON?/*from  w w  w  .  jav  a2 s.c o m*/
 * @param response HttpServletResponse
 * @param contentType contentType
 * @param object 
 */
public static void toJson(HttpServletResponse response, String contentType, Object value) {
    Assert.notNull(response);
    Assert.notNull(contentType);
    Assert.notNull(value);
    try {
        response.setContentType(contentType);
        mapper.writeValue(response.getWriter(), value);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

From source file:de.xwic.appkit.webbase.modules.ModuleProviderServlet.java

/**
 * respond with given status code/*www .ja  v a 2s. co  m*/
 *
 * @param message
 * @param status
 * @param response
 * @throws IOException
 */
private static void error(String message, int status, HttpServletResponse response) throws IOException {
    response.setStatus(status);
    response.setContentType("application/json");
    response.getWriter().println("{ \"error\" : \"" + message + "\", " + "\"status\" : " + status + "}");
}

From source file:gov.nih.nci.caarray.web.helper.DownloadHelper.java

/**
 * Zips the selected files and writes the result to the servlet output stream. Also sets content type and
 * disposition appropriately./* w  ww  . ja v  a 2  s  .c  o m*/
 * 
 * @param files the files to zip and send
 * @param baseFilename the filename w/o the suffix to use for the archive file. This filename will be set as the
 *            Content-disposition header
 * @throws IOException if there is an error writing to the stream
 */
public static void downloadFiles(Collection<CaArrayFile> files, String baseFilename) throws IOException {
    final HttpServletResponse response = ServletActionContext.getResponse();

    try {
        final PackagingInfo info = getPreferedPackageInfo(files, baseFilename);
        response.setContentType(info.getMethod().getMimeType());
        response.addHeader("Content-disposition", "filename=\"" + info.getName() + "\"");

        final List<CaArrayFile> sortedFiles = new ArrayList<CaArrayFile>(files);
        Collections.sort(sortedFiles, CAARRAYFILE_NAME_COMPARATOR_INSTANCE);
        final OutputStream sos = response.getOutputStream();
        final OutputStream closeShield = new CloseShieldOutputStream(sos);
        final ArchiveOutputStream arOut = info.getMethod().createArchiveOutputStream(closeShield);
        try {
            for (final CaArrayFile f : sortedFiles) {
                fileAccessUtils.addFileToArchive(f, arOut);
            }
        } finally {
            // note that the caller's stream is shielded from the close(),
            // but this is the only way to finish and flush the (gzip) stream.
            try {
                arOut.close();
            } catch (final Exception e) {
                LOG.error(e);
            }
        }
    } catch (final Exception e) {
        LOG.error("Error streaming download of files " + files, e);
        response.sendError(HttpServletResponse.SC_NOT_FOUND);
    }
}

From source file:com.github.rnewson.couchdb.lucene.util.ServletUtils.java

public static void setResponseContentTypeAndEncoding(final HttpServletRequest req,
        final HttpServletResponse resp) {
    final String accept = req.getHeader("Accept");
    if (getBooleanParameter(req, "force_json") || (accept != null && accept.contains("application/json"))) {
        resp.setContentType("application/json");
    } else {/*from  ww w  . j a  va 2 s  .  c  o  m*/
        resp.setContentType("text/plain");
    }
    if (!resp.containsHeader("Vary")) {
        resp.addHeader("Vary", "Accept");
    }
    resp.setCharacterEncoding("utf-8");
}

From source file:com.pactera.edg.am.metamanager.extractor.util.AntZip.java

public static void zipFile(String inputFileName, HttpServletResponse response) {
    try {//  w  w  w .  j a v  a 2  s.  c  om
        response.setContentType("text/plain;charset=utf-8");
        response.setHeader("Content-Disposition", "attachment;filename=data.zip");
        response.setStatus(HttpServletResponse.SC_OK); //??
        OutputStream output = response.getOutputStream();
        ZipOutputStream zipOut = new ZipOutputStream(output);
        zip(zipOut, new File(inputFileName), "");
        if (zipOut != null)
            zipOut.close();
        if (output != null)
            output.close();
    } catch (Exception e) {
        // TODO: handle exception
        e.printStackTrace();
    } finally {

    }

}