Java Code Examples for javax.servlet.http.HttpServletResponse#setIntHeader()

@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) {
    response.setHeader("One", "abc");
    response.setHeader("one", "ab");
    response.addHeader("one", "xy");
    response.setHeader("Two", "1");
    response.setHeader("Three", "xyz");

    response.setDateHeader("Date-One", 1393553211832L);
    response.setDateHeader("Date-one", 1393553212832L);
    response.addDateHeader("Date-one", 1393553213832L);
    response.setDateHeader("Date-Two", 1393553214832L);
    response.setDateHeader("Date-Thr", 1393553215832L);
    response.addDateHeader("Date-Four", 1393553215832L);

    response.setIntHeader("Int-One", 1);
    response.setIntHeader("Int-one", 2);
    response.addIntHeader("Int-one", 3);
    response.setIntHeader("Int-Two", 4);
    response.setIntHeader("Int-Thr", 5);
    response.addIntHeader("Int-Four", 6);

    response.addHeader("X-One", "xy");
    response.addDateHeader("X-one", 1393553216832L);
    response.addIntHeader("X-one", 6);
}
 

public static void addSecurityHeaders(final HttpServletResponse resp) {
    if (resp.containsHeader("X-Content-Type-Options")) {
        resp.setHeader("X-Content-Type-Options", "nosniff");
    }
    else {
        resp.addHeader("X-Content-Type-Options", "nosniff");
    }
    if (resp.containsHeader("X-XSS-Protection")) {
        resp.setHeader("X-XSS-Protection", "1;mode=block");
    }
    else {
        resp.addHeader("X-XSS-Protection", "1;mode=block");
    }

    if (resp.containsHeader("content-security-policy")) {
        resp.setIntHeader("content-security-policy", 1);
    }else {
        resp.addIntHeader("content-security-policy", 1);
    }
    resp.addHeader("content-security-policy","default-src=none");
    resp.addHeader("content-security-policy","script-src=self");
    resp.addHeader("content-security-policy","connect-src=self");
    resp.addHeader("content-security-policy","img-src=self");
    resp.addHeader("content-security-policy","style-src=self");
}
 

/**
 * 设置响应的Header
 * 
 * @param name 名
 * @param value 值，可以是String，Date， int
 */
public static void setHeader(String name, Object value) {
	HttpServletResponse response = getResponse();
	if (value instanceof String) {
		response.setHeader(name, (String) value);
	} else if (Date.class.isAssignableFrom(value.getClass())) {
		response.setDateHeader(name, ((Date) value).getTime());
	} else if (value instanceof Integer || "int".equals(value.getClass().getSimpleName().toLowerCase())) {
		response.setIntHeader(name, (int) value);
	} else {
		response.setHeader(name, value.toString());
	}
}
 

@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
  resp.setContentType("text/html;charset=utf-8");
  req.setCharacterEncoding("utf-8");
  resp.setStatus(HttpServletResponse.SC_OK);
  resp.setIntHeader("refresh", 300);
  PrintWriter out = resp.getWriter();
  out.print(page.render());
  out.flush();
  out.close();
}
 

private boolean doResponseRedirectOrNotModifiedLogic(HttpProxyContext proxyContext,
                                                     HttpResponse proxyResponse,
                                                     int statusCode) throws ServletException, IOException {
    HttpServletResponse servletResponse = proxyContext.getResponse();
    // Check if the proxy response is a redirect
    // The following code is adapted from org.tigris.noodle.filters.CheckForRedirect
    if (statusCode >= HttpServletResponse.SC_MULTIPLE_CHOICES /* 300 */
            && statusCode < HttpServletResponse.SC_NOT_MODIFIED /* 304 */) {
        Header locationHeader = proxyResponse.getLastHeader(HttpHeaders.LOCATION);
        if (locationHeader == null) {
            throw new ServletException("Received status code: " + statusCode
                    + " but no " + HttpHeaders.LOCATION + " header was found in the response");
        }
        // Modify the redirect to go to this proxy servlet rather that the proxied host
        String locStr = rewriteUrlFromResponse(proxyContext, locationHeader.getValue());

        servletResponse.sendRedirect(locStr);
        return true;
    }
    // 304 needs special handling.  See:
    // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304
    // We get a 304 whenever passed an 'If-Modified-Since'
    // header and the data on disk has not changed; server
    // responds w/ a 304 saying I'm not going to send the
    // body because the file has not changed.
    if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
        servletResponse.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
        servletResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return true;
    }
    return false;
}
 

protected void forwardResponse(final Routes.Route route, final Response response,
                               final HttpServletRequest request, final HttpServletResponse resp,
                               final Function<InputStream, InputStream> responseRewriter) throws IOException {
    final int status = response.getStatus();
    resp.setStatus(status);
    forwardHeaders(route, response, resp);
    if (status == HttpServletResponse.SC_NOT_MODIFIED && resp.getHeader(HttpHeaders.CONTENT_LENGTH) == null) {
        resp.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
    }
    forwardCookies(route, response, resp);
    writeOutput(resp, responseRewriter.apply(response.readEntity(InputStream.class)));
}
 

@Override
public IView addIntHeader(String name, int value) {
    HttpServletResponse _response = WebContext.getResponse();
    if (_response.containsHeader(name)) {
        _response.addIntHeader(name, value);
    } else {
        _response.setIntHeader(name, value);
    }
    return this;
}
 

/**
 * @param response    HttpServletResponse对象
 * @param templateUrl JSP等模板文件URL
 * @param time        间隔时间
 * @param url         页面URL地址，空为当前页面
 * @return 通过设置Header的Refresh属性执行页面刷新或跳转，若url参数为空，则仅向Header添加time时间后自动刷新当前页面
 */
public static String doRedirectHeaderRefresh(HttpServletResponse response, String templateUrl, int time, String url) {
    if (StringUtils.isBlank(url)) {
        response.setIntHeader("REFRESH", time);
    } else {
        String _content = time + ";URL=" + url;
        response.setHeader("REFRESH", _content);
    }
    return templateUrl;
}
 

@Override
protected void service(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
    String responseStr = "hello";
    response.setIntHeader("Content-Length", responseStr.length());
    response.getOutputStream().print(responseStr);
}
 

protected boolean doResponseRedirectOrNotModifiedLogic(HttpServletRequest servletRequest,
        HttpServletResponse servletResponse, HttpResponse proxyResponse, int statusCode) throws ServletException, IOException {
    // Check if the proxy response is a redirect
    // The following code is adapted from org.tigris.noodle.filters.CheckForRedirect
    if (statusCode >= HttpServletResponse.SC_MULTIPLE_CHOICES /* 300 */
            && statusCode < HttpServletResponse.SC_NOT_MODIFIED /* 304 */) {
        Header locationHeader = proxyResponse.getLastHeader(HttpHeaders.LOCATION);
        if (locationHeader == null) {
            throw new ServletException("Received status code: " + statusCode + " but no " + HttpHeaders.LOCATION
                    + " header was found in the response");
        }
        // Modify the redirect to go to this proxy servlet rather that the proxied host
        String locStr = rewriteUrlFromResponse(servletRequest, locationHeader.getValue());

        servletResponse.sendRedirect(locStr);
        return true;
    }
    // 304 needs special handling. See:
    // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304
    // We get a 304 whenever passed an 'If-Modified-Since'
    // header and the data on disk has not changed; server
    // responds w/ a 304 saying I'm not going to send the
    // body because the file has not changed.
    if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
        servletResponse.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
        servletResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return true;
    }
    return false;
}
 

protected boolean doResponseRedirectOrNotModifiedLogic(
        HttpServletRequest servletRequest, HttpServletResponse servletResponse,
        HttpResponse proxyResponse, int statusCode)
        throws ServletException, IOException {
    // Check if the proxy response is a redirect
    // The following code is adapted from org.tigris.noodle.filters.CheckForRedirect
    if (statusCode >= HttpServletResponse.SC_MULTIPLE_CHOICES /* 300 */
            && statusCode < HttpServletResponse.SC_NOT_MODIFIED /* 304 */) {
        Header locationHeader = proxyResponse.getLastHeader(HttpHeaders.LOCATION);
        if (locationHeader == null) {
            throw new ServletException("Received status code: " + statusCode
                    + " but no " + HttpHeaders.LOCATION + " header was found in the response");
        }
        // Modify the redirect to go to this proxy servlet rather that the proxied host
        String locStr = rewriteUrlFromResponse(servletRequest, locationHeader.getValue());

        servletResponse.sendRedirect(locStr);
        return true;
    }
    // 304 needs special handling.  See:
    // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304
    // We get a 304 whenever passed an 'If-Modified-Since'
    // header and the data on disk has not changed; server
    // responds w/ a 304 saying I'm not going to send the
    // body because the file has not changed.
    if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) {
        servletResponse.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0);
        servletResponse.setStatus(HttpServletResponse.SC_NOT_MODIFIED);
        return true;
    }
    return false;
}
 

/**
 * 扫码支付 - 统一下单
 * 相当于支付不的电脑网站支付
 *
 * <a href="https://pay.weixin.qq.com/wiki/doc/api/native.php?chapter=9_1">扫码支付API</a>
 */
@PostMapping("/order")
public void precreate(HttpServletRequest request, HttpServletResponse response) throws Exception {
    Map<String, String> reqData = new HashMap<>();
    reqData.put("out_trade_no", String.valueOf(System.nanoTime()));
    reqData.put("trade_type", "NATIVE");
    reqData.put("product_id", "1");
    reqData.put("body", "商户下单");
    // 订单总金额，单位为分
    reqData.put("total_fee", "2");
    // APP和网页支付提交用户端ip，Native支付填调用微信支付API的机器IP。
    reqData.put("spbill_create_ip", "14.23.150.211");
    // 异步接收微信支付结果通知的回调地址，通知url必须为外网可访问的url，不能携带参数。
    reqData.put("notify_url", "http://3sbqi7.natappfree.cc/wxpay/precreate/notify");
    // 自定义参数, 可以为终端设备号(门店号或收银设备ID)，PC网页或公众号内支付可以传"WEB"
    reqData.put("device_info", "");
    // 附加数据，在查询API和支付通知中原样返回，可作为自定义参数使用。
    reqData.put("attach", "");

    /**
     * {
     * code_url=weixin://wxpay/bizpayurl?pr=vvz4xwC,
     * trade_type=NATIVE,
     * return_msg=OK,
     * result_code=SUCCESS,
     * return_code=SUCCESS,
     * prepay_id=wx18111952823301d9fa53ab8e1414642725
     * }
     */
    Map<String, String> responseMap = wxPay.unifiedOrder(reqData);
    log.info(responseMap.toString());
    String returnCode = responseMap.get("return_code");
    String resultCode = responseMap.get("result_code");
    if (WXPayConstants.SUCCESS.equals(returnCode) && WXPayConstants.SUCCESS.equals(resultCode)) {
        String prepayId = responseMap.get("prepay_id");
        String codeUrl = responseMap.get("code_url");

        BufferedImage image = PayUtil.getQRCodeImge(codeUrl);

        response.setContentType("image/jpeg");
        response.setHeader("Pragma","no-cache");
        response.setHeader("Cache-Control","no-cache");
        response.setIntHeader("Expires",-1);
        ImageIO.write(image, "JPEG", response.getOutputStream());
    }

}
 

@GetMapping
public void handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

    User user = securityService.getCurrentUser(request);
    TransferStatus status = null;
    try {

        status = statusService.createDownloadStatus(playerService.getPlayer(request, response, false, false));

        MediaFile mediaFile = getMediaFile(request);

        Integer playlistId = ServletRequestUtils.getIntParameter(request, "playlist");
        Integer playerId = ServletRequestUtils.getIntParameter(request, "player");
        int[] indexes = request.getParameter("i") == null ? null : ServletRequestUtils.getIntParameters(request, "i");

        if (mediaFile != null) {
            response.setIntHeader("ETag", mediaFile.getId());
            response.setHeader("Accept-Ranges", "bytes");
        }

        HttpRange range = HttpRange.valueOf(request.getHeader("Range"));
        if (range != null) {
            response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
            LOG.info("Got HTTP range: " + range);
        }

        if (mediaFile != null) {
            if (!securityService.isFolderAccessAllowed(mediaFile, user.getUsername())) {
                response.sendError(HttpServletResponse.SC_FORBIDDEN,
                        "Access to file " + mediaFile.getId() + " is forbidden for user " + user.getUsername());
                return;
            }

            if (mediaFile.isFile()) {
                downloadFile(response, status, mediaFile.getFile(), range);
            } else {
                List<MediaFile> children = mediaFileService.getChildrenOf(mediaFile, true, false, true);
                String zipFileName = FilenameUtils.getBaseName(mediaFile.getPath()) + ".zip";
                File coverArtFile = indexes == null ? mediaFile.getCoverArtFile() : null;
                downloadFiles(response, status, children, indexes, coverArtFile, range, zipFileName);
            }

        } else if (playlistId != null) {
            List<MediaFile> songs = playlistService.getFilesInPlaylist(playlistId);
            Playlist playlist = playlistService.getPlaylist(playlistId);
            downloadFiles(response, status, songs, null, null, range, playlist.getName() + ".zip");

        } else if (playerId != null) {
            Player player = playerService.getPlayerById(playerId);
            PlayQueue playQueue = player.getPlayQueue();
            playQueue.setName("Playlist");
            downloadFiles(response, status, playQueue.getFiles(), indexes, null, range, "download.zip");
        }

    } finally {
        if (status != null) {
            statusService.removeDownloadStatus(status);
            securityService.updateUserByteCounts(user, 0L, status.getBytesTransfered(), 0L);
        }
    }
}
 

public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {

        User user = securityService.getCurrentUser(request);
        TransferStatus status = null;
        try {

            status = statusService.createDownloadStatus(playerService.getPlayer(request, response, false, false));

            MediaFile mediaFile = getMediaFile(request);

            Integer playlistId = ServletRequestUtils.getIntParameter(request, "playlist");
            String playerId = request.getParameter("player");
            int[] indexes = request.getParameter("i") == null ? null : ServletRequestUtils.getIntParameters(request, "i");

            if (mediaFile != null) {
                response.setIntHeader("ETag", mediaFile.getId());
                response.setHeader("Accept-Ranges", "bytes");
            }

            HttpRange range = HttpRange.valueOf(request.getHeader("Range"));
            if (range != null) {
                response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
                LOG.info("Got HTTP range: " + range);
            }

            if (mediaFile != null) {
                if (!securityService.isFolderAccessAllowed(mediaFile, user.getUsername())) {
                    response.sendError(HttpServletResponse.SC_FORBIDDEN,
                                       "Access to file " + mediaFile.getId() + " is forbidden for user " + user.getUsername());
                    return null;
                }

                if (mediaFile.isFile()) {
                    downloadFile(response, status, mediaFile.getFile(), range);
                } else {
                    List<MediaFile> children = mediaFileService.getChildrenOf(mediaFile, true, false, true);
                    String zipFileName = FilenameUtils.getBaseName(mediaFile.getPath()) + ".zip";
                    File coverArtFile = indexes == null ? mediaFile.getCoverArtFile() : null;
                    downloadFiles(response, status, children, indexes, coverArtFile, range, zipFileName);
                }

            } else if (playlistId != null) {
                List<MediaFile> songs = playlistService.getFilesInPlaylist(playlistId);
                Playlist playlist = playlistService.getPlaylist(playlistId);
                downloadFiles(response, status, songs, null, null, range, playlist.getName() + ".zip");

            } else if (playerId != null) {
                Player player = playerService.getPlayerById(playerId);
                PlayQueue playQueue = player.getPlayQueue();
                playQueue.setName("Playlist");
                downloadFiles(response, status, playQueue.getFiles(), indexes, null, range, "download.zip");
            }

        } finally {
            if (status != null) {
                statusService.removeDownloadStatus(status);
                securityService.updateUserByteCounts(user, 0L, status.getBytesTransfered(), 0L);
            }
        }

        return null;
    }
 

@RequestMapping(value = "/download", method = RequestMethod.GET)
public void download(HttpServletRequest request, HttpServletResponse response) throws IOException {
    UserSession userSession = getSession(request, response);
    if (userSession == null)
        return;

    AppContext.setSecurityContext(new SecurityContext(userSession));
    try {
        File file = null;
        FileDescriptor fd = null;
        if (request.getParameter("p") != null)
            file = getFile(request, response);
        else
            fd = getFileDescriptor(request, response);
        if (fd == null && file == null)
            return;

        response.setHeader("Cache-Control", "no-cache");
        response.setHeader("Pragma", "no-cache");
        response.setIntHeader("Expires", -1);
        response.setHeader("Content-Type", FileTypesHelper.DEFAULT_MIME_TYPE);

        InputStream is = null;
        ServletOutputStream os = null;
        try {
            is = fd != null ? fileStorage.openStream(fd) : FileUtils.openInputStream(file);
            os = response.getOutputStream();
            IOUtils.copy(is, os);
            os.flush();
        } catch (FileStorageException e) {
            log.error("Unable to download file", e);
            response.sendError(e.getType().getHttpStatus());
        } catch (Exception ex) {
            log.error("Unable to download file", ex);
            response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
        } finally {
            IOUtils.closeQuietly(is);
            IOUtils.closeQuietly(os);
        }
    } finally {
        AppContext.setSecurityContext(null);
    }
}