Example usage for javax.servlet.http HttpServletResponse addHeader

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

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  4. javax.servlet.http.*
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  6. addHeader

Introduction

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

Prototype

public void addHeader(String name, String value);

Source Link

Document

Adds a response header with the given name and value.

Usage

From source file:mx.edu.um.mateo.rh.web.DependienteController.java

private void generaReporte(String tipo, List<Dependiente> dependientes, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(dependientes);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=Dependientes.pdf");
        break;/*from ww w  .  ja va  2  s  .  c  o m*/
    case "CSV":
        archivo = generaCsv(dependientes);
        response.setContentType("text/csv");
        response.addHeader("Content-Disposition", "attachment; filename=Dependientes.csv");
        break;
    case "XLS":
        archivo = generaXls(dependientes);
        response.setContentType("application/vnd.ms-excel");
        response.addHeader("Content-Disposition", "attachment; filename=Dependientes.xls");
    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}

From source file:gov.nih.nci.ncicb.cadsr.ocbrowser.struts.actions.ObjectClassAction.java

/**
 *
 *
 * @param mapping The ActionMapping used to select this instance.
 * @param form The optional ActionForm bean for this request.
 * @param request The HTTP Request we are processing.
 * @param response The HTTP Response we are processing.
 *
 * @return//from  ww  w  .  j  a  va2 s  . co m
 *
 * @throws IOException
 * @throws ServletException
 */
public ActionForward viewReferenceDocAttchment(ActionMapping mapping, ActionForm form,
        HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {

    OutputStream out = null;

    InputStream is = null;
    out = response.getOutputStream();
    String attachmentName = request.getParameter(CaDSRConstants.REFERENCE_DOC_ATTACHMENT_NAME);
    response.addHeader("Content-Disposition", "inline;filename=" + attachmentName);
    response.addHeader("Pragma", "cache");
    response.addHeader("Cache-Control", "private");
    response.addHeader("Expires", "0");

    // first find out if the attachment is new and saved in the session

    Map attMap = (Map) getSessionObject(request, CaDSRConstants.REFDOC_ATTACHMENT_MAP);
    Attachment attachment = getAttachmentFromSession(attMap, attachmentName);

    if (attachment != null) {
        FormFile attFile = (FormFile) attMap.get(attachment);

        is = attFile.getInputStream();
        response.setContentType(attachment.getMimeType());
    } else {
        Blob theBlob = null;

        Connection conn = null;
        ResultSet rs = null;
        PreparedStatement ps = null;
        try {
            DBUtil dbUtil = new DBUtil();

            //String dsName = CDEBrowserParams.getInstance("cdebrowser").getSbrDSN();
            dbUtil.getOracleConnectionFromContainer();

            String sqlStmt = "SELECT blob_content, mime_type, doc_size from reference_blobs where name = ?";
            log.info(sqlStmt);
            conn = dbUtil.getConnection();
            ps = conn.prepareStatement(sqlStmt);
            ps.setString(1, attachmentName);
            rs = ps.executeQuery();
            boolean exists = false;

            if (rs.next()) {
                exists = true;

                String mimeType = rs.getString(2);
                //    (mimeType);

                response.setContentType(mimeType);
                //theBlob = ((OracleResultSet)rs).getBLOB(1);
                theBlob = rs.getBlob(1);
                is = theBlob.getBinaryStream();
                response.setContentLength(rs.getInt(3));
                response.setBufferSize(4 * 1024);

                //Writing to the OutputStream
                if (is != null) {
                    byte[] buf = new byte[4 * 1024]; // 4K buffer

                    int bytesRead;

                    while ((bytesRead = is.read(buf)) != -1) {
                        out.write(buf, 0, bytesRead);
                    }
                }
                response.setStatus(HttpServletResponse.SC_OK);
            }
        } catch (Exception ex) {
            log.error("Exception Caught in ObjectClassAction.viewReferenceDocAttchment:", ex);
        } finally {
            try {
                if (is != null)
                    is.close();

                if (out != null)
                    out.close();

                try {
                    if (ps != null)
                        ps.close();
                } catch (Exception e) {
                }
                try {
                    if (rs != null)
                        rs.close();
                } catch (Exception e) {
                }
                try {
                    if (conn != null)
                        conn.close();
                } catch (Exception e) {
                }
                //if (db != null) db.closeDB();
            } catch (Exception ex) {
                log.error("Exception Caught in ObjectClassAction during cleaning up :", ex);
            }
        }
    }
    return null;
}

From source file:io.wcm.caravan.commons.cors.impl.CorsServletFilter.java

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)
        throws IOException, ServletException {
    if (!enabled) {
        chain.doFilter(servletRequest, servletResponse);
        return;/*w w  w.j  a  va 2  s.c  om*/
    }

    HttpServletRequest request = (HttpServletRequest) servletRequest;
    HttpServletResponse response = (HttpServletResponse) servletResponse;

    String origin = request.getHeader(HttpHeader.ORIGIN);
    if (StringUtils.isNotEmpty(origin)) {
        if (allowAllHosts) {
            response.setHeader(HttpHeader.ACCESS_CONTROL_ALLOW_ORIGIN, "*");
        } else if ((hostWhitelist.isEmpty() || hostWhitelist.contains(origin))
                && (hostBlacklist.isEmpty() || !hostBlacklist.contains(origin))) {
            response.setHeader(HttpHeader.ACCESS_CONTROL_ALLOW_ORIGIN, origin);
            response.addHeader(HttpHeader.VARY, HttpHeader.ORIGIN);
        }
    }

    chain.doFilter(request, response);
}

From source file:net.sf.j2ep.responsehandlers.ResponseHandlerBase.java

/**
 * Will write all response headers received in the method to the response.
 * One header, connection, is however omitted since we will only want the 
 * client to keep his connection to the proxy not to the backing server.
 * /*w  w  w.  j a v  a2  s  .c  om*/
 * @param response The response that will have headers written to it
 */
protected void setHeaders(HttpServletResponse response) {
    Header[] headers = method.getResponseHeaders();

    for (int i = 0; i < headers.length; i++) {
        Header header = headers[i];
        String name = header.getName();
        boolean contentLength = name.equalsIgnoreCase("content-length");
        boolean connection = name.equalsIgnoreCase("connection");
        boolean transferEncoding = name.equalsIgnoreCase("transfer-encoding");
        if (!contentLength && !connection && !transferEncoding) {

            response.addHeader(name, header.getValue());

        }
    }

    setViaHeader(response);
}

From source file:net.shopxx.interceptor.TokenInterceptor.java

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
        throws Exception {
    String token = WebUtils.getCookie(request, TOKEN_COOKIE_NAME);
    if (StringUtils.equalsIgnoreCase(request.getMethod(), "POST")) {
        if (StringUtils.isNotEmpty(token)) {
            String requestType = request.getHeader("X-Requested-With");
            if (StringUtils.equalsIgnoreCase(requestType, "XMLHttpRequest")) {
                if (StringUtils.equals(token, request.getHeader(TOKEN_PARAMETER_NAME))) {
                    return true;
                } else {
                    response.addHeader("tokenStatus", "accessDenied");
                }/*from  w w w  . j  av  a  2s . com*/
            } else {
                if (StringUtils.equals(token, request.getParameter(TOKEN_PARAMETER_NAME))) {
                    return true;
                }
            }
        } else {
            WebUtils.addCookie(request, response, TOKEN_COOKIE_NAME,
                    DigestUtils.md5Hex(UUID.randomUUID() + RandomStringUtils.randomAlphabetic(30)));
        }
        response.sendError(HttpServletResponse.SC_FORBIDDEN, ERROR_MESSAGE);
        return false;
    } else {
        if (StringUtils.isEmpty(token)) {
            token = DigestUtils.md5Hex(UUID.randomUUID() + RandomStringUtils.randomAlphabetic(30));
            WebUtils.addCookie(request, response, TOKEN_COOKIE_NAME, token);
        }
        request.setAttribute(TOKEN_ATTRIBUTE_NAME, token);
        return true;
    }
}

From source file:com.edgenius.wiki.webapp.action.BaseAction.java

/**
 * @param dFile//  w w w .  ja va2s  . c  om
 */
protected void downloadFile(String name, File dFile) {
    HttpServletResponse response = getResponse();
    response.setContentType("application/octet-stream");
    response.setHeader("Content-Disposition", "attachment;filename=\"" + name + "\"");
    response.setHeader("Cache-control", "must-revalidate");
    response.addHeader("Content-Description", name);

    InputStream in = null;
    try {
        in = new BufferedInputStream(new FileInputStream(dFile));
        OutputStream out = response.getOutputStream();
        int count = 0;

        int len = 0;
        byte[] ch = new byte[10240];
        while ((len = in.read(ch)) != -1) {
            out.write(ch, 0, len);
            count += len;
        }
        response.setContentLength(count);
    } catch (IOException e) {
        log.error("Exception occured writing out file:" + name, e);
    } finally {
        try {
            if (in != null)
                in.close(); // very important
        } catch (IOException e) {
            log.error("Error Closing file. File already written out - no exception being thrown.", e);
        }
    }
}

From source file:it.cilea.osd.jdyna.web.controller.ExportConfigurazioneAnagrafica.java

/**
 * Esporta la configurazione anagrafica corrente di un oggetto in un file
 * xml//from   w w w.ja v  a2  s .com
 * 
 */
@Override
protected ModelAndView onSubmit(HttpServletRequest request, HttpServletResponse response, Object object,
        BindException errors) throws RuntimeException, IOException {
    response.setContentType("application/xml");
    response.addHeader("Content-Disposition", "attachment; filename=" + filename);
    PrintWriter writer = response.getWriter();
    writer.print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
            + "<!DOCTYPE beans PUBLIC \"-//SPRING//DTD BEAN//EN\"\n"
            + "\"http://www.springframework.org/dtd/spring-beans.dtd\">\n\n\n");
    writer.print("<beans>\n");
    writer.print("   <!-- Configurazioni per il tool di import (NON MODIFICARE) -->\n");
    writer.print(
            "      <bean id=\"customEditorConfigurer\" class=\"org.springframework.beans.factory.config.CustomEditorConfigurer\">\n");
    writer.print("         <property name=\"customEditors\">\n");
    writer.print("              <map>\n");
    writer.print("               <entry key=\"" + tpClass.getCanonicalName() + "\">\n");
    writer.print("                    <ref bean=\"configurazione" + tpClass.getSimpleName() + "Editor\"/>\n");
    writer.print("                </entry>\n");
    writer.print("               <entry key=\"it.cilea.osd.jdyna.model.Soggettario\">\n");
    writer.print("                    <ref bean=\"configurazioneSoggettarioEditor\"/>\n");
    writer.print("                </entry>\n");
    writer.print("               <entry key=\"it.cilea.osd.jdyna.model.AlberoClassificatorio\">\n");
    writer.print("                    <ref bean=\"configurazioneAlberoClassificatorioEditor\"/>\n");
    writer.print("                </entry>\n");
    writer.print("             </map>\n");
    writer.print("          </property>\n");
    writer.print("       </bean>\n");

    // Tipologie di proprieta'
    List<TP> allTP = applicationService.getList(tpClass);
    for (TP tp : allTP) {

        toXML(writer, tp);

    }

    // Aree
    Class<H> areaClass = boxClass;
    List<H> allAree = applicationService.getList(areaClass);
    for (H area : allAree) {
        toXML(writer, area);
    }

    // Tipologia di oggetto
    if (typeClass != null) {
        List<TY> allType = applicationService.getList(typeClass);
        for (TY type : allType) {
            toXML(writer, type);
        }
    }

    response.getWriter().print("</beans>");
    return null;
}

From source file:com.ctb.prism.report.api.CustomViewerServlet.java

/**
 *
 *///from  w  w  w  .  j ava  2s.c  o m
public void service(HttpServletRequest request, HttpServletResponse response)
        throws IOException, ServletException {
    response.setContentType("text/html; charset=UTF-8");

    // Set to expire far in the past.
    response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
    // 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");

    PrintWriter out = response.getWriter();

    WebReportContext webReportContext = WebReportContext.getInstance(request);

    try {
        render(request, webReportContext, out);
    } catch (Exception e) {
        log.error("Error on report execution", e);

        out.println("<html>");//FIXMEJIVE do we need to render this? or should this be done by the viewer?
        out.println("<head>");
        out.println("<title>JasperReports - Web Application Sample</title>");
        out.println("<link rel=\"stylesheet\" type=\"text/css\" href=\"../stylesheet.css\" title=\"Style\">");
        out.println("</head>");

        out.println("<body bgcolor=\"white\">");

        out.println("<span class=\"bnew\">JasperReports encountered this error :</span>");
        out.println("<pre>");

        e.printStackTrace(out);

        out.println("</pre>");

        out.println("</body>");
        out.println("</html>");
    }

}

From source file:com.ikon.servlet.admin.MimeTypeServlet.java

/**
 * Export mime types//from  ww  w.  j  a  v a 2  s .  c o m
 */
private void export(String userId, HttpServletRequest request, HttpServletResponse response)
        throws DatabaseException, IOException {
    log.debug("export({}, {}, {})", new Object[] { userId, request, response });

    // Disable browser cache
    response.setHeader("Expires", "Sat, 6 May 1971 12:00:00 GMT");
    response.setHeader("Cache-Control", "max-age=0, must-revalidate");
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    String fileName = "ikon_" + WarUtils.getAppVersion().getVersion() + "_MimeTypes.sql";

    response.setHeader("Content-disposition", "inline; filename=\"" + fileName + "\"");
    response.setContentType("text/x-sql; charset=UTF-8");
    PrintWriter out = new PrintWriter(new OutputStreamWriter(response.getOutputStream(), "UTF8"), true);
    out.println("DELETE FROM ikon_MIME_TYPE;");
    out.println("DELETE FROM ikon_MIME_TYPE_EXTENSION;");

    for (MimeType mimeType : MimeTypeDAO.findAll("mt.id")) {
        StringBuffer insertMime = new StringBuffer(
                "INSERT INTO ikon_MIME_TYPE (MT_ID, MT_NAME, MT_IMAGE_CONTENT, MT_IMAGE_MIME) VALUES (");
        insertMime.append(mimeType.getId()).append(", '");
        insertMime.append(mimeType.getName()).append("', '");
        insertMime.append(mimeType.getImageContent()).append("', '");
        insertMime.append(mimeType.getImageMime()).append("');");
        out.println(insertMime);

        for (String ext : mimeType.getExtensions()) {
            StringBuffer insertExtension = new StringBuffer(
                    "INSERT INTO ikon_MIME_TYPE_EXTENSION (MTE_ID, MTE_NAME) VALUES (");
            insertExtension.append(mimeType.getId()).append(", '");
            insertExtension.append(ext).append("');");
            out.println(insertExtension);
        }
    }
    out.flush();
    log.debug("export: sql-file");
}

From source file:mx.edu.um.mateo.rh.web.ClaveEmpleadoController.java

private void generaReporte(String tipo, List<ClaveEmpleado> claveEmpleados, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(claveEmpleados);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=clavesEmpleado.pdf");
        break;/*from w  ww  .  j a v  a2s .c o  m*/
    case "CSV":
        archivo = generaCsv(claveEmpleados);
        response.setContentType("text/csv");
        response.addHeader("Content-Disposition", "attachment; filename=clavesEmpleado.csv");
        break;
    case "XLS":
        archivo = generaXls(claveEmpleados);
        response.setContentType("application/vnd.ms-excel");
        response.addHeader("Content-Disposition", "attachment; filename=clavesEmpleado.xls");
    }
    if (archivo != null) {
        response.setContentLength(archivo.length);
        try (BufferedOutputStream bos = new BufferedOutputStream(response.getOutputStream())) {
            bos.write(archivo);
            bos.flush();
        }
    }

}