Example usage for javax.servlet.http HttpServletResponse addHeader

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

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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:net.sf.ginp.GinpPictureServlet.java

/**
 * Handle missing picture handles the case where the image being linked
 * to does not exist. It returns the image "/img/nofile.jpg" and sets
 * the image to not cache so that if the image does appear later the
 * image will reload.  If the image exists it returns the origional
 * image passed.//from   ww w.j  av a 2s  . c  o m
 * @param req servlet request
 * @param res servlet response
 * @param fl file
 * @return the file to use as the image source file
 */
private File handleMissingPicture(final HttpServletRequest req, final HttpServletResponse res, File fl) {
    if (!(fl.exists())) {
        log.info("File not found: " + fl.getAbsolutePath());

        fl = new File(req.getSession().getServletContext().getRealPath("/img/nofile.jpg"));

        // DO NOT cache this picture.
        res.setHeader("Expires", "-1");
        res.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
        res.addHeader("Cache-Control", "post-check=0, pre-check=0");
        res.setHeader("Pragma", "no-cac`he");
    }

    return fl;
}

From source file:net.sf.jasperreports.web.servlets.ViewerServlet.java

@Override
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 {/*from  w  ww  .j ava 2 s.  c  o  m*/
        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:eu.comvantage.dataintegration.QueryDistributionServiceImpl.java

private void print(HttpResponse in, HttpServletResponse out) throws IOException {
    //writing binary response stream
    for (Header h : in.getAllHeaders()) {
        out.addHeader(h.getName(), h.getValue());
    }//from   www .j a va  2  s.  co  m
    out.setStatus(in.getStatusLine().getStatusCode());
    out.setLocale(in.getLocale());
    out.setContentType("text/html");

    ServletOutputStream outstream = out.getOutputStream();
    int c;
    while ((c = in.getEntity().getContent().read()) != -1) {
        outstream.write(c);
    }
    outstream.flush();
}

From source file:at.gv.egovernment.moa.id.auth.servlet.VerifyIdentityLinkServlet.java

/**
 * GET requested by security layer implementation to verify
 * that data URL resource is available.//  ww w .j  a  v  a 2s .  c o m
 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest, HttpServletResponse)
 */
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

    Logger.debug("GET VerifyIdentityLink");

    resp.setHeader(MOAIDAuthConstants.HEADER_EXPIRES, MOAIDAuthConstants.HEADER_VALUE_EXPIRES);
    resp.setHeader(MOAIDAuthConstants.HEADER_PRAGMA, MOAIDAuthConstants.HEADER_VALUE_PRAGMA);
    resp.setHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL, MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL);
    resp.addHeader(MOAIDAuthConstants.HEADER_CACHE_CONTROL, MOAIDAuthConstants.HEADER_VALUE_CACHE_CONTROL_IE);
}

From source file:io.fabric8.maven.impl.MavenProxyServletSupportTest.java

@Test
@Ignore("[https://jira.codehaus.org/browse/WAGON-416][FABRIC-171] Wait for wagon-http-lightweight fixes")
public void testDownloadUsingAuthenticatedProxy() throws Exception {
    testDownload(new AbstractHandler() {
        @Override//www. jav  a  2 s  .c o m
        public void handle(String target, Request baseRequest, HttpServletRequest request,
                HttpServletResponse response) throws IOException, ServletException {
            String proxyAuth = request.getHeader("Proxy-Authorization");
            if (proxyAuth == null || proxyAuth.trim().equals("")) {
                response.setStatus(HttpServletResponse.SC_PROXY_AUTHENTICATION_REQUIRED);
                response.addHeader("Proxy-Authenticate", "Basic realm=\"Proxy Server\"");
                baseRequest.setHandled(true);
            } else {
                response.setStatus(HttpServletResponse.SC_OK);
                baseRequest.setHandled(true);
                response.getOutputStream().write(new byte[] { 0x42 });
                response.getOutputStream().close();
            }
        }
    });
}

From source file:net.sourceforge.fenixedu.presentationTier.Action.base.FenixDispatchAction.java

protected void writeFile(final HttpServletResponse response, final String filename, final String contentType,
        final byte[] content) throws IOException {

    response.setContentLength(content.length);
    response.setContentType(contentType);
    response.addHeader("Content-Disposition", "attachment; filename=\"" + filename + "\"");

    try (ServletOutputStream outputStream = response.getOutputStream()) {
        outputStream.write(content);/*  ww w.  j  av a  2 s. c o m*/
        outputStream.flush();
        response.flushBuffer();
    }
}

From source file:net.sourceforge.fenixedu.presentationTier.Action.externalServices.epfl.ExportPhdIndividualProgramProcessInformation.java

private void downloadCandidateDocuments(HttpServletRequest request, HttpServletResponse response)
        throws IOException {
    final String candidateOid = request.getParameter("candidateOid");
    final PhdProgramPublicCandidacyHashCode code = FenixFramework.getDomainObject(candidateOid);
    final byte[] documents = ExportPhdIndividualProgramProcessesInHtml.createZip(code);
    final String email = code.getEmail().substring(0, code.getEmail().indexOf("@"));
    final String documentName = email + "-documents.zip";
    response.addHeader("Content-Disposition", "attachment; filename=" + documentName);
    writeResponse(response, documents, "application/zip");
}

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

private void generaReporte(String tipo, List<JefeSeccion> jefeSeccions, HttpServletResponse response)
        throws JRException, IOException {
    log.debug("Generando reporte {}", tipo);
    byte[] archivo = null;
    switch (tipo) {
    case "PDF":
        archivo = generaPdf(jefeSeccions);
        response.setContentType("application/pdf");
        response.addHeader("Content-Disposition", "attachment; filename=clavesEmpleado.pdf");
        break;/*from   w w w .j  a  v  a  2s  . c  o m*/
    case "CSV":
        archivo = generaCsv(jefeSeccions);
        response.setContentType("text/csv");
        response.addHeader("Content-Disposition", "attachment; filename=clavesEmpleado.csv");
        break;
    case "XLS":
        archivo = generaXls(jefeSeccions);
        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();
        }
    }

}

From source file:com.jaspersoft.jasperserver.rest.utils.Utils.java

public void sendFile(DataSource ds, HttpServletResponse response) {
    response.setContentType(ds.getContentType());

    if (ds.getName() != null && ds.getName().length() > 0) {
        response.addHeader("Content-Disposition", "attachment; filename=" + ds.getName());
    }//  w ww . j ava2 s  .co m

    OutputStream outputStream = null;
    BufferedInputStream bufferedInputStream = null;
    try {
        outputStream = response.getOutputStream();

        bufferedInputStream = new BufferedInputStream(ds.getInputStream());
        int readBytes = 0;

        while ((readBytes = bufferedInputStream.read()) != -1) {
            outputStream.write(readBytes);
        }

        if (log.isDebugEnabled()) {
            log.debug("finished sending bytes");
        }

    } catch (IOException ex) {
        log.error("Error serving a file: " + ex.getMessage(), ex);
    } finally {
        if (outputStream != null)
            try {
                outputStream.close();
            } catch (Exception ex) {
            }
        if (bufferedInputStream != null)
            try {
                bufferedInputStream.close();
            } catch (Exception ex) {
            }
    }
}

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

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

}