Example usage for javax.servlet.http HttpServletResponse 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:com.webbfontaine.valuewebb.model.util.Utils.java

public static void sendBytes(byte[] bytes, String filename, String contentType) {
    if (bytes != null) {
        HttpServletResponse response = (HttpServletResponse) FacesContext.getCurrentInstance()
                .getExternalContext().getResponse();

        response.setContentType(contentType);
        response.addHeader("Content-disposition", "attachment; filename=" + filename);
        response.addHeader("Content-Length", String.valueOf(bytes.length));
        ServletOutputStream os = null;/*from   w  w w . j a va  2  s .  com*/
        try {
            os = response.getOutputStream();
            os.write(bytes);
            os.flush();
            FacesContext.getCurrentInstance().responseComplete();
        } catch (IOException e) {
            LOGGER.error("Sending content failed {0}", filename, e);
        } finally {
            if (os != null) {
                try {
                    os.close();
                } catch (IOException e) {
                    LOGGER.error("Failed to close stream after sending", e);
                }
            }
        }
    }
}

From source file:com.feilong.servlet.http.ResponseDownloadUtil.java

/**
 *  download response header./*w  w w  .  ja  v  a  2  s  . c o m*/
 *
 * @param saveFileName
 *            the save file name
 * @param contentLength
 *            the content length
 * @param contentType
 *            ?,;,? <code>null</code>,,?? {@link #resolverContentType(String, String)}
 * @param contentDisposition
 *            ?,;,? <code>null</code>,,?? {@link #resolverContentDisposition(String, String)}
 * @param response
 *            the response
 */
private static void setDownloadResponseHeader(String saveFileName, Number contentLength, String contentType,
        String contentDisposition, HttpServletResponse response) {

    //response
    //getResponsegetWriter()??,??,?response.resetresetBuffer.
    //getOutputStream() has already been called for this response
    //jsp??,response.getOutputStream()??:java.lang.IllegalStateException:getOutputStream() has already been called for this response,Exception
    response.reset();

    //*************************************************************************
    response.addHeader(HttpHeaders.CONTENT_DISPOSITION,
            resolverContentDisposition(saveFileName, contentDisposition));

    // ===================== Default MIME Type Mappings =================== -->
    //??,?,????.????,???,
    response.setContentType(resolverContentType(saveFileName, contentType));

    if (isNotNullOrEmpty(contentLength)) {
        response.setContentLength(contentLength.intValue());
    }

    //************************about buffer***********************************************************

    //?:??,?,.
    //??,?:
    //JSP??
    //
    //JSPout.flush()response.flushbuffer()

    //:?,?,???,???.
    //XXX ?? response.setBufferSize(10240); ^_^

    //see org.apache.commons.io.IOUtils.copyLarge(InputStream, OutputStream) javadoc
    //This method buffers the input internally, so there is no need to use a BufferedInputStream
}

From source file:org.openmrs.module.webservices.rest.web.RestUtil.java

/**
 * Sets the HTTP status for UPDATED and (if 'updated' has a uri) the Location header attribute
 * /*  w w w  .  jav  a  2  s . c  o  m*/
 * @param response
 * @param updated
 * @return the object passed in
 */
public static Object updated(HttpServletResponse response, Object updated) {
    response.setStatus(HttpServletResponse.SC_OK);
    try {
        String uri = (String) PropertyUtils.getProperty(updated, "uri");
        response.addHeader("Location", uri);
    } catch (Exception ex) {
    }
    return updated;
}

From source file:org.openmrs.module.webservices.rest.web.RestUtil.java

/**
 * Sets the HTTP status for CREATED and (if 'created' has a uri) the Location header attribute
 * /*w  w w  .j a v a2s. c  o m*/
 * @param response
 * @param created
 * @return the object passed in
 */
public static Object created(HttpServletResponse response, Object created) {
    response.setStatus(HttpServletResponse.SC_CREATED);
    try {
        String uri = (String) PropertyUtils.getProperty(created, "uri");
        response.addHeader("Location", uri);
    } catch (Exception ex) {
    }
    return created;
}

From source file:net.shopxx.filter.AccessDeniedFilter.java

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
        throws IOException, ServletException {
    HttpServletResponse response = (HttpServletResponse) servletResponse;
    response.addHeader(new String(Base64.decodeBase64("UG93ZXJlZEJ5"), "utf-8"),
            new String(Base64.decodeBase64("Y2hlbmd6aGFuZy5jbw=="), "utf-8"));
    response.sendError(HttpServletResponse.SC_FORBIDDEN, ERROR_MESSAGE);
}

From source file:nl.surfnet.coin.api.oauth.Http401UnauthorizedEntryPoint.java

@Override
public void commence(HttpServletRequest request, HttpServletResponse response,
        AuthenticationException authException) throws IOException, ServletException {
    HttpServletResponse httpResponse = (HttpServletResponse) response;
    httpResponse.addHeader("WWW-Authenticate", "Bearer realm=\"api.surfconext\"");
    httpResponse.sendError(HttpServletResponse.SC_UNAUTHORIZED, "Unauthorized");

}

From source file:com.cnd.greencube.web.base.filter.AccessDeniedFilter.java

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
        throws IOException, ServletException {
    HttpServletResponse response = (HttpServletResponse) servletResponse;
    response.addHeader(new String(Base64.decodeBase64("UG93ZXJlZEJ5"), "utf-8"),
            new String(Base64.decodeBase64("VG9wIFRlYW0="), "utf-8"));
    response.sendError(HttpServletResponse.SC_FORBIDDEN, ERROR_MESSAGE);
}

From source file:com.sammyun.filter.AccessDeniedFilter.java

public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
        throws IOException, ServletException {
    HttpServletResponse response = (HttpServletResponse) servletResponse;
    response.addHeader(new String(Base64.decodeBase64("UG93ZXJlZEJ5"), "utf-8"),
            new String(Base64.decodeBase64("U2hvcHh4Lm5ldA=="), "utf-8"));
    response.sendError(HttpServletResponse.SC_FORBIDDEN, ERROR_MESSAGE);
}

From source file:com.hbs.common.josn.JSONUtil.java

public static void writeJSONToResponse(HttpServletResponse response, String encoding, boolean wrapWithComments,
        String serializedJSON, boolean smd, boolean gzip, String contentType) throws IOException {
    String json = serializedJSON == null ? "" : serializedJSON;
    if (wrapWithComments) {
        StringBuilder sb = new StringBuilder("/* ");
        sb.append(json);/*from  w w  w .  j av a 2  s .co m*/
        sb.append(" */");
        json = sb.toString();
    }
    if (log.isDebugEnabled()) {
        log.debug("[JSON]" + json);
    }

    if (contentType == null) {
        contentType = "application/json";
    }
    response.setContentType((smd ? "application/json-rpc;charset=" : contentType + ";charset=") + encoding);
    if (gzip) {
        response.addHeader("Content-Encoding", "gzip");
        GZIPOutputStream out = null;
        InputStream in = null;
        try {
            out = new GZIPOutputStream(response.getOutputStream());
            in = new ByteArrayInputStream(json.getBytes());
            byte[] buf = new byte[1024];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        } finally {
            if (in != null)
                in.close();
            if (out != null) {
                out.finish();
                out.close();
            }
        }

    } else {
        response.setContentLength(json.getBytes(encoding).length);
        PrintWriter out = response.getWriter();
        out.print(json);
    }
}

From source file:com.navercorp.arcus.util.CrossOriginResourceSharingFilter.java

@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
        throws IOException, ServletException {
    HttpServletResponse servletResponse = (HttpServletResponse) response;
    servletResponse.addHeader("Access-Control-Allow-Origin", "*");
    servletResponse.addHeader("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT");
    servletResponse.addHeader("Access-Control-Allow-Headers", "Content-Type");
    chain.doFilter(request, response);//from   w  w  w .  j  a va 2  s  .co  m
}