Example usage for javax.servlet.http HttpServletResponse setHeader

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:org.gwtwidgets.server.spring.ServletUtils.java

/**
 * Adjusts HTTP headers so that browsers won't cache response.
 * @param response//  www . ja  v  a  2s .co  m
 * For more background see <a href="http://www.onjava.com/pub/a/onjava/excerpt/jebp_3/index2.html">this</a>.
 */
public static void disableResponseCaching(HttpServletResponse response) {
    response.setHeader("Expires", "Sat, 1 January 2000 12:00:00 GMT");
    response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
    response.addHeader("Cache-Control", "post-check=0, pre-check=0");
    response.setHeader("Pragma", "no-cache");
}

From source file:Main.java

/**
 * Add headers to prevent browsers and proxies from caching this reply.
 * @param resp The response to add headers to
 *///from  w w w  .j a  v  a  2 s . c o  m
public static void addNoCacheHeaders(HttpServletResponse resp) {
    // Set standard HTTP/1.1 no-cache headers.
    resp.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");

    // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
    resp.addHeader("Cache-Control", "post-check=0, pre-check=0");

    // Set standard HTTP/1.0 no-cache header.
    resp.setHeader("Pragma", "no-cache");

    // Set to expire far in the past. Prevents caching at the proxy server
    resp.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
}

From source file:cz.cas.lib.proarc.authentication.utils.AuthUtils.java

/**
 * Writes the authentication required status to the HTTP response.
 * @param response response//  w w  w  .j ava2 s  .c o  m
 * @throws IOException failure
 * @see #HEADER_AUTHENTICATE_TYPE
 * @see <a href='http://www.smartclient.com/smartgwt/javadoc/com/smartgwt/client/docs/Relogin.html'>SmartGWT Relogin</a>
 */
public static void setLoginRequiredResponse(HttpServletResponse response) throws IOException {
    response.setHeader(HEADER_AUTHENTICATE_TYPE, Authenticators.getInstance().getLoginType());
    response.setStatus(HttpServletResponse.SC_FORBIDDEN);
    response.setContentType(MediaType.TEXT_HTML);
    InputStream res = ProarcAuthFilter.class.getResourceAsStream("loginRequiredMarker.html");
    try {
        IOUtils.copy(res, response.getOutputStream());
        res.close();
    } finally {
        IOUtils.closeQuietly(res);
    }
}

From source file:org.myjerry.util.ResponseUtil.java

public static final void setNoCache(HttpServletResponse response, boolean isHttp11) {
    if (isHttp11) {
        response.setHeader("Cache-Control", "no-cache");
    } else {/*from   ww w  .  ja v  a 2 s .com*/
        response.setHeader("Pragma", "no-cache");
        response.addDateHeader("Expires", 0L);
        response.setHeader("Cache-Control", "no-store");
    }
}

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);/*from   w  w  w  .  jav  a 2s.c o  m*/
    try {
        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:org.lightadmin.core.web.util.ResponseUtils.java

public static void addImageResourceHeaders(HttpServletResponse response, HttpHeaders httpHeaders) {
    for (String httpHeaderKey : httpHeaders.keySet()) {
        response.setHeader(httpHeaderKey, httpHeaders.get(httpHeaderKey).get(0));
    }//  www .ja v a2 s  .c  o  m
}

From source file:de.itsvs.cwtrpc.core.CwtRpcUtils.java

public static void addNoCacheResponseHeaders(HttpServletRequest request, HttpServletResponse response) {
    response.setHeader("Cache-Control", "no-cache, no-store, no-transform");
    response.setDateHeader("Expires", -1L);
    response.setHeader("Pragma", "no-cache");
}

From source file:com.kwoksys.framework.util.HttpUtils.java

public static void setDownloadResponseHeaders(HttpServletResponse response, String fileName) {
    // To work around file download problems on IE
    response.setHeader("Pragma", "public"); // For HTTP/1.0 backward compatibility.
    response.setHeader("Cache-Control", "public"); // For HTTP/1.1.

    // Set filename
    response.setHeader("Content-Disposition", "attachment; filename=\"" + fileName + "\"");
}

From source file:dk.dma.msinm.common.util.WebUtils.java

/**
 * Add headers to the response to ensure no caching takes place
 * @param response the response//from  ww  w  .j a v  a 2s.  com
 * @return the response
 */
public static HttpServletResponse nocache(HttpServletResponse response) {
    response.setHeader("Cache-Control", "no-cache");
    response.setHeader("Cache-Control", "no-store");
    response.setHeader("Pragma", "no-cache");
    response.setDateHeader("Expires", 0);
    return response;
}

From source file:net.hj2eplatform.core.component.CustomAuthenticationSuccessHandler.java

public static void sendJsonResponse(HttpServletResponse response, String key, String message) {
    response.setContentType("application/json;charset=UTF-8");
    response.setHeader("Cache-Control", "no-cache");
    try {/*from w  w w. j  a v  a2  s. co  m*/
        response.getWriter().write(String.format(JSON_VALUE, key, message));
    } catch (IOException e) {
        LOGGER.error("error writing json to response", e);
    }
}