Example usage for javax.servlet.http HttpServletResponse setHeader

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

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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:com.soolr.core.web.Servlets.java

/**
 * ??Header.//  w ww.j a  va2s .c  om
 * 
 * @param fileName ???.
 */
public static void setFileDownloadHeader(HttpServletRequest request, HttpServletResponse response,
        String fileName) {
    try {
        String agent = request.getHeader("User-Agent");
        boolean isMSIE = ((agent != null) && (agent.indexOf("MSIE") != -1));
        String encoded = isMSIE ? URLEncoder.encode(fileName, "UTF-8")
                : new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
        response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + encoded + "\"");
    } catch (UnsupportedEncodingException e) {

    }
}

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  av a  2  s .c o m*/
    }

    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:ee.ria.xroad.common.request.DummyCentralServiceHandler.java

private static void sendErrorResponse(HttpServletResponse response, String faultCode, String faultString,
        String faultActor, String faultDetail) throws IOException {
    String soapMessageXml = SoapFault.createFaultXml(faultCode, faultString, faultActor, faultDetail);

    String encoding = StandardCharsets.UTF_8.name();
    byte[] messageBytes = soapMessageXml.getBytes(encoding);

    response.setStatus(HttpServletResponse.SC_OK);
    response.setContentType(MimeTypes.TEXT_XML);
    response.setContentLength(messageBytes.length);
    response.setHeader("SOAPAction", "");
    response.setCharacterEncoding(encoding);
    response.getOutputStream().write(messageBytes);
}

From source file:com.cisco.ca.cstg.pdi.utils.Util.java

/**
 * This method is used to download files from specified path
 * @param response/*from   ww  w  .j  a  v a2  s  .c  o m*/
 * @param archiveFile
 */
public static void downloadArchiveFile(HttpServletResponse response, File archiveFile) {
    if (archiveFile.isFile()) {
        response.reset();
        response.setContentType("application/zip");
        response.setHeader("Content-Disposition", "attachment;filename=\"" + archiveFile.getName() + "\"");
        FileInputStream is = null;
        ServletOutputStream op = null;
        try {
            op = response.getOutputStream();
            double dLength = archiveFile.length();
            int iLength = 0;
            int num_read = 0;

            if (dLength >= Integer.MIN_VALUE && dLength <= Integer.MAX_VALUE) {
                iLength = (int) dLength;
            }
            byte[] arBytes = new byte[iLength];
            is = new FileInputStream(archiveFile);

            while (num_read < iLength) {
                int count = is.read(arBytes, num_read, iLength - num_read);
                if (count < 0) {
                    throw new IOException("end of stream reached");
                }
                num_read += count;
            }
            op.write(arBytes);
            op.flush();
        } catch (IOException e) {
            LOGGER.error(e.getMessage(), e);
        } finally {
            if (null != is) {
                try {
                    is.close();
                } catch (IOException e) {
                    LOGGER.error(e.getMessage(), e);
                }
            }
            if (null != op) {
                try {
                    op.close();
                } catch (IOException e) {
                    LOGGER.error(e.getMessage(), e);
                }
            }
        }
    }
}

From source file:br.gov.lexml.server.LexMLOAIHandler.java

/**
 * Get a response Writer depending on acceptable encodings
 * //  ww w  . ja va  2 s  .  c  o  m
 * @param request the servlet's request information
 * @param response the servlet's response information
 * @exception IOException an I/O error occurred
 */
public static Writer getWriter(final HttpServletRequest request, final HttpServletResponse response)
        throws IOException {
    Writer out;
    String encodings = request.getHeader("Accept-Encoding");
    if (debug) {
        log.debug("encodings=" + encodings);
    }
    if (encodings != null && encodings.indexOf("gzip") != -1) {
        response.setHeader("Content-Encoding", "gzip");
        out = new OutputStreamWriter(new GZIPOutputStream(response.getOutputStream()), "UTF-8");
    } else if (encodings != null && encodings.indexOf("deflate") != -1) {
        response.setHeader("Content-Encoding", "deflate");
        out = new OutputStreamWriter(new DeflaterOutputStream(response.getOutputStream()), "UTF-8");
    } else {
        out = response.getWriter();
    }
    return out;
}

From source file:org.artifactory.webapp.servlet.RequestUtils.java

/**
 * add no cache and no store header to response in order to avoid java script caching on browser.
 * In addition adds a compatibility header for IE (where needed) to avoid default compatibility view for
 * intranet sites.//w w w.j ava2  s  .  c o  m
 *
 * @param request     - http servlet request
 * @param response    - http servlet response
 */
public static void addAdditionalHeadersToWebAppRequest(HttpServletRequest request,
        HttpServletResponse response) {
    final String servletPath = RequestUtils.getServletPathFromRequest(request);
    if (servletPath.contains(HttpUtils.WEBAPP_URL_PATH_PREFIX)) {
        verifyExplorerUserAgentAndSetHeader(request, response);
        if (servletPath.endsWith("/app.html")) {
            // don't store (cache) the app.html in the browser. other resources contain unique version identifier
            response.setHeader("Cache-Control", "no-store");
        }
        if (!ConstantValues.enableUiPagesInIframe.getBoolean()) {
            response.setHeader("X-FRAME-OPTIONS", "DENY");
        }
    }
}

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

public static void download(HttpServletRequest request, HttpServletResponse response, String filePath,
        String displayName) throws IOException {
    File file = new File(filePath);

    if (StringUtils.isEmpty(displayName)) {
        displayName = file.getName();/*w ww  .  j a  va 2 s  .c o m*/
    }

    if (!file.exists() || !file.canRead()) {
        response.setContentType("text/html;charset=utf-8");
        response.getWriter().write("??");
        return;
    }

    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) file.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 FileInputStream(file));
        IOUtils.copy(is, os);
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        IOUtils.closeQuietly(is);
    }
}

From source file:com.aurel.track.admin.customize.lists.BlobBL.java

/**
 * Prepares the response/*from  w  w w.  j a v  a2 s  .  co m*/
 * 
 * @param request
 * @param response
 * @param fileName
 * @param fileLength
 * @param inline
 */
private static void prepareResponse(HttpServletRequest request, HttpServletResponse response, String fileName,
        String fileLength, boolean inline) {
    String contentType = null;
    if (fileName != null) {
        int mid = fileName.lastIndexOf(".");
        if (mid != -1) {
            String ext = fileName.substring(mid + 1, fileName.length());
            if (ext != null) {
                contentType = "image/" + ext.toLowerCase();
                response.setHeader("Content-Type", contentType);
            }
        }
    }
    DownloadUtil.prepareResponse(request, response, fileName, contentType, fileLength, inline);
}

From source file:com.google.gsa.valve.modules.utils.HTTPAuthZProcessor.java

/**
 * Includes the HTML document in the response
 * //w w  w  .j a v a 2 s .  c o m
 * @param response HTTP response
 * @param method HTTP method
 * @param url document url
 * @param loginUrl login url
 * @param contentType content type
 * 
 * @throws IOException
 */
public static void returnHTML(HttpServletResponse response, HttpMethodBase method, String url, String loginUrl,
        String contentType) throws IOException {

    logger.debug("Returning an HTML document");

    //Get writer
    PrintWriter out = null;

    try {
        out = response.getWriter();
        if (out != null) {
            //set content
            out.print(method.getResponseBodyAsString());
            //close writer
            out.close();
            response.setHeader("Content-Type", contentType);
        }
    } catch (Exception e) {
        logger.error("Error when returning HTML content: " + e.getMessage(), e);
        //protection
        if (out != null) {
            out.close();
        }
    }

}

From source file:com.charity.core.controller.Servlets.java

/**
 * ??Header./*w  ww. j av a  2 s.c o m*/
 * 
 * @param fileName ???.
 */
public static void setFileDownloadHeader(HttpServletRequest request, HttpServletResponse response,
        String fileName) {
    // ???
    String encodedfileName;
    // ??firefox??,???+?
    fileName = fileName.trim().replaceAll(" ", "_");

    String agent = request.getHeader("User-Agent");
    boolean isMSIE = (agent != null && agent.toUpperCase().contains("MSIE"));
    if (isMSIE) {
        encodedfileName = Encodes.urlEncode(fileName);
    } else {
        encodedfileName = new String(fileName.getBytes(), Charsets.ISO_8859_1);
    }

    response.setHeader(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=\"" + encodedfileName + "\"");

}