org.springframework.web.servlet.support.RequestContextUtils Java Examples

@GetMapping(value = "/message")
@ResponseBody
public String message(HttpServletRequest request) {
    //获取当前的本地区域信息
    Locale locale = LocaleContextHolder.getLocale();
    //或者
    Locale locale1 = RequestContextUtils.getLocale(request);

    Locale aDefault = Locale.getDefault();

    //不能使用Locale.ENGLISH
    Locale english = Locale.US;
    //不能Locale.CHINESE
    Locale chinese = Locale.CHINA;

    //其中第二个参数为占位符数据
    String welcome = messageSource.getMessage("welcome", null, english);
    String hello = messageSource.getMessage("hello", new String[]{"i18n"}, english);

    String welcome1 = messagesUtil.getMessage("welcome", chinese);
    String hello1 = messagesUtil.getMessage("hello", new String[]{"i18n"}, chinese);
    System.out.println(hello1 + welcome1);

    return hello + welcome;
}
 

/**
 * Find the registered {@link RequestDataValueProcessor}, if any, and allow
 * it to update the redirect target URL.
 * @param targetUrl the given redirect URL
 * @return the updated URL or the same as URL as the one passed in
 */
protected String updateTargetUrl(String targetUrl, Map<String, Object> model,
		HttpServletRequest request, HttpServletResponse response) {

	WebApplicationContext wac = getWebApplicationContext();
	if (wac == null) {
		wac = RequestContextUtils.findWebApplicationContext(request, getServletContext());
	}

	if (wac != null && wac.containsBean(RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME)) {
		RequestDataValueProcessor processor = wac.getBean(
				RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME, RequestDataValueProcessor.class);
		return processor.processUrl(request, targetUrl);
	}

	return targetUrl;
}
 

@RequestMapping(value="/{language}/categories/{id}", method=RequestMethod.POST)
public @ResponseBody DomainObjectUpdatedModel update(
		@Valid CategoryEditForm form,
		BindingResult result,
		@PathVariable long id,
		AuthorizedUser authorizedUser,
		HttpServletRequest request,
		HttpServletResponse response) throws BindException {
	form.setId(id);
	if (result.hasErrors()) {
		throw new BindException(result);
	}
	Category category = categoryService.updateCategory(form.buildCategoryUpdateRequest(), authorizedUser);
	FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
	flashMap.put("updatedCategory", category);
	RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response);
	return new DomainObjectUpdatedModel<>(category);
}
 

/**
 * Convert model to request parameters and redirect to the given URL.
 * @see #appendQueryProperties
 * @see #sendRedirect
 */
@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request,
		HttpServletResponse response) throws IOException {

	String targetUrl = createTargetUrl(model, request);
	targetUrl = updateTargetUrl(targetUrl, model, request, response);

	FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
	if (!CollectionUtils.isEmpty(flashMap)) {
		UriComponents uriComponents = UriComponentsBuilder.fromUriString(targetUrl).build();
		flashMap.setTargetRequestPath(uriComponents.getPath());
		flashMap.addTargetRequestParams(uriComponents.getQueryParams());
		FlashMapManager flashMapManager = RequestContextUtils.getFlashMapManager(request);
		if (flashMapManager == null) {
			throw new IllegalStateException("FlashMapManager not found despite output FlashMap having been set");
		}
		flashMapManager.saveOutputFlashMap(flashMap, request, response);
	}

	sendRedirect(request, response, targetUrl, this.http10Compatible);
}
 

private ModelAndView getModelAndView(ModelAndViewContainer mavContainer,
		ModelFactory modelFactory, NativeWebRequest webRequest) throws Exception {

	modelFactory.updateModel(webRequest, mavContainer);
	if (mavContainer.isRequestHandled()) {
		return null;
	}
	ModelMap model = mavContainer.getModel();
	ModelAndView mav = new ModelAndView(mavContainer.getViewName(), model);
	if (!mavContainer.isViewReference()) {
		mav.setView((View) mavContainer.getView());
	}
	if (model instanceof RedirectAttributes) {
		Map<String, ?> flashAttributes = ((RedirectAttributes) model).getFlashAttributes();
		HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
		RequestContextUtils.getOutputFlashMap(request).putAll(flashAttributes);
	}
	return mav;
}
 

/**
 * Print {@link MvcResult} details.
 */
@Override
public final void handle(MvcResult result) throws Exception {
	this.printer.printHeading("MockHttpServletRequest");
	printRequest(result.getRequest());

	this.printer.printHeading("Handler");
	printHandler(result.getHandler(), result.getInterceptors());

	this.printer.printHeading("Async");
	printAsyncResult(result);

	this.printer.printHeading("Resolved Exception");
	printResolvedException(result.getResolvedException());

	this.printer.printHeading("ModelAndView");
	printModelAndView(result.getModelAndView());

	this.printer.printHeading("FlashMap");
	printFlashMap(RequestContextUtils.getOutputFlashMap(result.getRequest()));

	this.printer.printHeading("MockHttpServletResponse");
	printResponse(result.getResponse());
}
 

private void saveFlashAttributes(ModelAndViewContainer mav, NativeWebRequest request, String location) {
	mav.setRedirectModelScenario(true);
	ModelMap model = mav.getModel();
	if (model instanceof RedirectAttributes) {
		Map<String, ?> flashAttributes = ((RedirectAttributes) model).getFlashAttributes();
		if (!CollectionUtils.isEmpty(flashAttributes)) {
			HttpServletRequest req = request.getNativeRequest(HttpServletRequest.class);
			HttpServletResponse res = request.getNativeResponse(HttpServletResponse.class);
			if (req != null) {
				RequestContextUtils.getOutputFlashMap(req).putAll(flashAttributes);
				if (res != null) {
					RequestContextUtils.saveOutputFlashMap(location, req, res);
				}
			}
		}
	}
}
 

private ModelAndView getModelAndView(ModelAndViewContainer mavContainer,
		ModelFactory modelFactory, NativeWebRequest webRequest) throws Exception {

	modelFactory.updateModel(webRequest, mavContainer);
	if (mavContainer.isRequestHandled()) {
		return null;
	}
	ModelMap model = mavContainer.getModel();
	ModelAndView mav = new ModelAndView(mavContainer.getViewName(), model, mavContainer.getStatus());
	if (!mavContainer.isViewReference()) {
		mav.setView((View) mavContainer.getView());
	}
	if (model instanceof RedirectAttributes) {
		Map<String, ?> flashAttributes = ((RedirectAttributes) model).getFlashAttributes();
		HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
		RequestContextUtils.getOutputFlashMap(request).putAll(flashAttributes);
	}
	return mav;
}
 

/**
 * Find the registered {@link RequestDataValueProcessor}, if any, and allow
 * it to update the redirect target URL.
 * @param targetUrl the given redirect URL
 * @return the updated URL or the same as URL as the one passed in
 */
protected String updateTargetUrl(String targetUrl, Map<String, Object> model,
		HttpServletRequest request, HttpServletResponse response) {

	WebApplicationContext wac = getWebApplicationContext();
	if (wac == null) {
		wac = RequestContextUtils.findWebApplicationContext(request, getServletContext());
	}

	if (wac != null && wac.containsBean(RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME)) {
		RequestDataValueProcessor processor = wac.getBean(
				RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME, RequestDataValueProcessor.class);
		return processor.processUrl(request, targetUrl);
	}

	return targetUrl;
}
 

private void saveFlashAttributes(ModelAndViewContainer mav, NativeWebRequest request, String location) {
	mav.setRedirectModelScenario(true);
	ModelMap model = mav.getModel();
	if (model instanceof RedirectAttributes) {
		Map<String, ?> flashAttributes = ((RedirectAttributes) model).getFlashAttributes();
		if (!CollectionUtils.isEmpty(flashAttributes)) {
			HttpServletRequest req = request.getNativeRequest(HttpServletRequest.class);
			HttpServletResponse res = request.getNativeResponse(HttpServletResponse.class);
			if (req != null) {
				RequestContextUtils.getOutputFlashMap(req).putAll(flashAttributes);
				if (res != null) {
					RequestContextUtils.saveOutputFlashMap(location, req, res);
				}
			}
		}
	}
}
 

/**
 * Print {@link MvcResult} details.
 */
@Override
public final void handle(MvcResult result) throws Exception {
	this.printer.printHeading("MockHttpServletRequest");
	printRequest(result.getRequest());

	this.printer.printHeading("Handler");
	printHandler(result.getHandler(), result.getInterceptors());

	this.printer.printHeading("Async");
	printAsyncResult(result);

	this.printer.printHeading("Resolved Exception");
	printResolvedException(result.getResolvedException());

	this.printer.printHeading("ModelAndView");
	printModelAndView(result.getModelAndView());

	this.printer.printHeading("FlashMap");
	printFlashMap(RequestContextUtils.getOutputFlashMap(result.getRequest()));

	this.printer.printHeading("MockHttpServletResponse");
	printResponse(result.getResponse());
}
 

/**
 * Find the registered {@link RequestDataValueProcessor}, if any, and allow
 * it to update the redirect target URL.
 * @param targetUrl the given redirect URL
 * @return the updated URL or the same as URL as the one passed in
 */
protected String updateTargetUrl(String targetUrl, Map<String, Object> model,
		HttpServletRequest request, HttpServletResponse response) {

	WebApplicationContext wac = getWebApplicationContext();
	if (wac == null) {
		wac = RequestContextUtils.findWebApplicationContext(request, getServletContext());
	}

	if (wac != null && wac.containsBean(RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME)) {
		RequestDataValueProcessor processor = wac.getBean(
				RequestContextUtils.REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME, RequestDataValueProcessor.class);
		return processor.processUrl(request, targetUrl);
	}

	return targetUrl;
}
 

@RequestMapping(value="/{language}/categories", method=RequestMethod.POST)
public @ResponseBody DomainObjectSavedModel save(
		@Valid CategoryCreateForm form,
		BindingResult result,
		AuthorizedUser authorizedUser,
		HttpServletRequest request,
		HttpServletResponse response) throws BindException {
	if (result.hasErrors()) {
		throw new BindException(result);
	}
	Category category = categoryService.createCategory(form.buildCategoryCreateRequest(), authorizedUser);
	FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
	flashMap.put("savedCategory", category);
	RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response);
	return new DomainObjectSavedModel<>(category);
}
 

/**
 * 获得国际化信息
 * 
 * @param request
 *            HttpServletRequest
 * @param code
 *            国际化代码
 * @param args
 *            替换参数
 * @return
 * @see org.springframework.context.MessageSource#getMessage(String,
 *      Object[], Locale)
 */
public static String getMessage(HttpServletRequest request, String code,
		Object... args) {
	WebApplicationContext messageSource = RequestContextUtils
			.getWebApplicationContext(request);
	if (messageSource == null) {
		throw new IllegalStateException("WebApplicationContext not found!");
	}
	LocaleResolver localeResolver = RequestContextUtils
			.getLocaleResolver(request);
	Locale locale;
	if (localeResolver != null) {
		locale = localeResolver.resolveLocale(request);
	} else {
		locale = request.getLocale();
	}
	return messageSource.getMessage(code, args, locale);
}
 

protected MockPageContext createAndPopulatePageContext() throws JspException {
	MockPageContext pageContext = createPageContext();
	MockHttpServletRequest request = (MockHttpServletRequest) pageContext.getRequest();
	((StaticWebApplicationContext) RequestContextUtils.findWebApplicationContext(request))
			.registerSingleton("requestDataValueProcessor", RequestDataValueProcessorWrapper.class);
	extendRequest(request);
	extendPageContext(pageContext);
	RequestContext requestContext = new JspAwareRequestContext(pageContext);
	pageContext.setAttribute(RequestContextAwareTag.REQUEST_CONTEXT_PAGE_ATTRIBUTE, requestContext);
	return pageContext;
}
 

@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
	if (!(RequestContextUtils.findWebApplicationContext(request) instanceof SimpleWebApplicationContext)) {
		throw new ServletException("Incorrect WebApplicationContext");
	}
	if (!(RequestContextUtils.getLocaleResolver(request) instanceof AcceptHeaderLocaleResolver)) {
		throw new ServletException("Incorrect LocaleResolver");
	}
	if (!Locale.CANADA.equals(RequestContextUtils.getLocale(request))) {
		throw new ServletException("Incorrect Locale");
	}
	return null;
}
 

@RequestMapping(value="/{language}/categories/{id}", method= RequestMethod.DELETE)
public @ResponseBody DomainObjectDeletedModel<Long> delete(
		@PathVariable String language,
		@PathVariable long id,
		AuthorizedUser authorizedUser,
		HttpServletRequest request,
		HttpServletResponse response) throws BindException {
	Category category = categoryService.deleteCategory(id, language);
	FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
	flashMap.put("deletedCategory", category);
	RequestContextUtils.getFlashMapManager(request).saveOutputFlashMap(flashMap, request, response);
	return new DomainObjectDeletedModel<>(category);
}
 

protected RequestDataValueProcessor getMockRequestDataValueProcessor() {
	RequestDataValueProcessor mockProcessor = mock(RequestDataValueProcessor.class);
	HttpServletRequest request = (HttpServletRequest) getPageContext().getRequest();
	WebApplicationContext wac = RequestContextUtils.findWebApplicationContext(request);
	wac.getBean(RequestDataValueProcessorWrapper.class).setRequestDataValueProcessor(mockProcessor);
	return mockProcessor;
}
 

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
		throws ServletException {

	String newTheme = request.getParameter(this.paramName);
	if (newTheme != null) {
		ThemeResolver themeResolver = RequestContextUtils.getThemeResolver(request);
		if (themeResolver == null) {
			throw new IllegalStateException("No ThemeResolver found: not in a DispatcherServlet request?");
		}
		themeResolver.setThemeName(request, response, newTheme);
	}
	// Proceed in any case.
	return true;
}
 

@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
		throws ServletException {

	String newLocale = request.getParameter(getParamName());
	if (newLocale != null) {
		if (checkHttpMethod(request.getMethod())) {
			LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(request);
			if (localeResolver == null) {
				throw new IllegalStateException(
						"No LocaleResolver found: not in a DispatcherServlet request?");
			}
			try {
				localeResolver.setLocale(request, response, parseLocaleValue(newLocale));
			}
			catch (IllegalArgumentException ex) {
				if (isIgnoreInvalidLocale()) {
					logger.debug("Ignoring invalid locale value [" + newLocale + "]: " + ex.getMessage());
				}
				else {
					throw ex;
				}
			}
		}
	}
	// Proceed in any case.
	return true;
}
 

/**
 * Create the workbook from an existing XLS document.
 * @param url the URL of the Excel template without localization part nor extension
 * @param request current HTTP request
 * @return the template workbook
 * @throws Exception in case of failure
 */
protected Workbook getTemplateSource(String url, HttpServletRequest request) throws Exception {
	LocalizedResourceHelper helper = new LocalizedResourceHelper(getApplicationContext());
	Locale userLocale = RequestContextUtils.getLocale(request);
	Resource inputFile = helper.findLocalizedResource(url, EXTENSION, userLocale);

	// Create the Excel document from the source.
	if (logger.isDebugEnabled()) {
		logger.debug("Loading Excel workbook from " + inputFile);
	}
	return Workbook.getWorkbook(inputFile.getInputStream());
}
 

@Override
@SuppressWarnings("deprecation")
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
		throws ServletException, IOException {
	if (!(RequestContextUtils.getWebApplicationContext(request) instanceof SimpleWebApplicationContext)) {
		throw new ServletException("Incorrect WebApplicationContext");
	}
	if (!(RequestContextUtils.getLocaleResolver(request) instanceof AcceptHeaderLocaleResolver)) {
		throw new ServletException("Incorrect LocaleResolver");
	}
	if (!Locale.CANADA.equals(RequestContextUtils.getLocale(request))) {
		throw new ServletException("Incorrect Locale");
	}
	return null;
}
 

private List<PlayQueueInfo.Entry> convertMediaFileList(HttpServletRequest request, Player player) {

        String url = NetworkService.getBaseUrl(request);
        Locale locale = RequestContextUtils.getLocale(request);
        PlayQueue playQueue = player.getPlayQueue();

        List<PlayQueueInfo.Entry> entries = new ArrayList<>();
        for (MediaFile file : playQueue.getFiles()) {

            String albumUrl = url + "main.view?id=" + file.getId();
            String streamUrl = url + "stream?player=" + player.getId() + "&id=" + file.getId();
            String coverArtUrl = url + "coverArt.view?id=" + file.getId();

            String remoteStreamUrl = jwtSecurityService.addJWTToken(url + "ext/stream?player=" + player.getId() + "&id=" + file.getId());
            String remoteCoverArtUrl = jwtSecurityService.addJWTToken(url + "ext/coverArt.view?id=" + file.getId());

            String format = formatFormat(player, file);
            String username = securityService.getCurrentUsername(request);
            boolean starred = mediaFileService.getMediaFileStarredDate(file.getId(), username) != null;
            entries.add(new PlayQueueInfo.Entry(file.getId(), file.getTrackNumber(), file.getTitle(), file.getArtist(),
                    file.getAlbumName(), file.getGenre(), file.getYear(), formatBitRate(file),
                    file.getDurationSeconds(), file.getDurationString(), format, formatContentType(format),
                    formatFileSize(file.getFileSize(), locale), starred, albumUrl, streamUrl, remoteStreamUrl,
                    coverArtUrl, remoteCoverArtUrl));
        }

        return entries;
    }
 

/**
 * Retrieves the URL path to use for lookup and delegates to
 * {@link #getViewNameForRequest}. Also adds the content of
 * {@link RequestContextUtils#getInputFlashMap} to the model.
 */
@Override
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) {
	String viewName = getViewNameForRequest(request);
	if (logger.isTraceEnabled()) {
		logger.trace("Returning view name '" + viewName + "'");
	}
	return new ModelAndView(viewName, RequestContextUtils.getInputFlashMap(request));
}
 

@GetMapping
protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) {
    Map<String, Object> map = new HashMap<>();

    List<TransferStatus> streamStatuses = statusService.getAllStreamStatuses();
    List<TransferStatus> downloadStatuses = statusService.getAllDownloadStatuses();
    List<TransferStatus> uploadStatuses = statusService.getAllUploadStatuses();

    Locale locale = RequestContextUtils.getLocale(request);
    List<TransferStatusHolder> transferStatuses = new ArrayList<>();

    for (int i = 0; i < streamStatuses.size(); i++) {
        long minutesAgo = streamStatuses.get(i).getMillisSinceLastUpdate() / 1000L / 60L;
        if (minutesAgo < 60L) {
            transferStatuses.add(new TransferStatusHolder(streamStatuses.get(i), true, false, false, i, locale));
        }
    }
    for (int i = 0; i < downloadStatuses.size(); i++) {
        transferStatuses.add(new TransferStatusHolder(downloadStatuses.get(i), false, true, false, i, locale));
    }
    for (int i = 0; i < uploadStatuses.size(); i++) {
        transferStatuses.add(new TransferStatusHolder(uploadStatuses.get(i), false, false, true, i, locale));
    }

    map.put("transferStatuses", transferStatuses);
    map.put("chartWidth", StatusChartController.IMAGE_WIDTH);
    map.put("chartHeight", StatusChartController.IMAGE_HEIGHT);

    return new ModelAndView("status","model",map);
}
 

/**
 * インフォメーション・メッセージをフラッシュ・スコープにストアします。
 * @param code メッセージ・コード
 * @param replace メッセージのプレースホルダを置換するキーとバリューの{@link Map}
 */
public void saveInformationMessageToFlash(
        String code,
        Map<String, ? extends Object> replace) {
    Args.checkNotNull(code);
    Messages messages = (Messages)RequestContextUtils.getOutputFlashMap(request).get(INFORMATION_MESSAGE_KEY_TO_FLASH);
    if (messages == null) {
        messages = new Messages(MessageType.INFORMATION);
        RequestContextUtils.getOutputFlashMap(request).put(INFORMATION_MESSAGE_KEY_TO_FLASH, messages);
    }
    messages.add(new Message(code, replace));
}
 

@Test
public void nullMessageSource() throws JspException {
	PageContext pc = createPageContext();
	ConfigurableWebApplicationContext ctx = (ConfigurableWebApplicationContext)
			RequestContextUtils.findWebApplicationContext((HttpServletRequest) pc.getRequest(), pc.getServletContext());
	ctx.close();

	MessageTag tag = new MessageTag();
	tag.setPageContext(pc);
	tag.setCode("test");
	tag.setVar("testvar2");
	tag.doStartTag();
	assertEquals("Correct doEndTag return value", Tag.EVAL_PAGE, tag.doEndTag());
}
 

@Test
public void インフォメーションメッセージがフラッシュスコープにセットされ出力されない() throws Exception {

    MessageContext context = new MessageContext(request);
    context.saveInformationMessageToFlash("I-JX_INFORMATIONS_TAG_TEST#0001");
    FlashMap flashMap = RequestContextUtils.getOutputFlashMap(request);
    request.setAttribute(MessageContext.INFORMATION_MESSAGE_KEY_TO_FLASH, flashMap.get(MessageContext.INFORMATION_MESSAGE_KEY_TO_FLASH));
    JseErrorsTag tag = new JseErrorsTag();
    tag.setJspContext(page);
    tag.doTag();

    assertThat(response.getContentAsString(), is(""));
}
 

@SuppressWarnings("deprecation")
protected RequestDataValueProcessor getMockRequestDataValueProcessor() {
	RequestDataValueProcessor mockProcessor = mock(RequestDataValueProcessor.class);
	ServletRequest request = getPageContext().getRequest();
	StaticWebApplicationContext wac = (StaticWebApplicationContext) RequestContextUtils.getWebApplicationContext(request);
	wac.getBean(RequestDataValueProcessorWrapper.class).setRequestDataValueProcessor(mockProcessor);
	return mockProcessor;
}
 

@Override
public Locale resolveLocale(Request request) {
	try {
		HttpServletRequest servletRequest = ServletUtil.getServletRequest(request).getRequest();
		if (servletRequest != null) {
			return RequestContextUtils.getLocale(servletRequest);
		}
	}
	catch (NotAServletEnvironmentException e) {
		// Ignore
	}
	return super.resolveLocale(request);
}