Java Code Examples for org.springframework.web.servlet.support.RequestContextUtils#getLocale()

@RequestMapping(method = RequestMethod.POST)
protected String onSubmit(final HttpServletRequest request,
                                                         final TrackCommand command,
                                                         final Map<String, Object> model,
                                                         final BindingResult bindingResult) {
    new TrackCommandValidator().validate(command, bindingResult);

    final TrackingId trackingId = new TrackingId(command.getTrackingId());
    final Cargo cargo = cargoRepository.find(trackingId);

    if (cargo != null) {
        final Locale locale = RequestContextUtils.getLocale(request);
        final List<HandlingEvent> handlingEvents = handlingEventRepository.lookupHandlingHistoryOfCargo(trackingId).distinctEventsByCompletionTime();
        model.put("cargo", new CargoTrackingViewAdapter(cargo, messageSource, locale, handlingEvents));
    } else {
        bindingResult.rejectValue("trackingId", "cargo.unknown_id", new Object[]{command.getTrackingId()}, "Unknown tracking id");
    }
    return "track";
}
 

@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;
}
 

private Locale resolveLocale(WebRequest request) {
  if (!(request instanceof ServletWebRequest)) {
    return request.getLocale();
  }
  ServletWebRequest servletWebRequest = (ServletWebRequest) request;
  return RequestContextUtils.getLocale(servletWebRequest.getRequest());
}
 

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);
	}
	//POIFSFileSystem fs = new POIFSFileSystem(inputFile.getInputStream());
	return new XSSFWorkbook(inputFile.getInputStream());
}
 

/**
 * Create a Tiles {@link Request}.
 * <p>This implementation creates a {@link ServletRequest}.
 * @param request the current request
 * @param response the current response
 * @return the Tiles request
 */
protected Request createTilesRequest(final HttpServletRequest request, HttpServletResponse response) {
	return new ServletRequest(this.applicationContext, request, response) {
		@Override
		public Locale getRequestLocale() {
			return RequestContextUtils.getLocale(request);
		}
	};
}
 

/**
 * 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());
}
 

/**
 * Create a Tiles {@link Request}.
 * <p>This implementation creates a {@link ServletRequest}.
 * @param request the current request
 * @param response the current response
 * @return the Tiles request
 */
protected Request createTilesRequest(final HttpServletRequest request, HttpServletResponse response) {
	return new ServletRequest(this.applicationContext, request, response) {
		@Override
		public Locale getRequestLocale() {
			return RequestContextUtils.getLocale(request);
		}
	};
}
 

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;
    }
 

/**
 * 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
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);
}
 

/**
 * Creates 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 HSSFWorkbook
 * @throws Exception in case of failure
 */
protected HSSFWorkbook 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 new HSSFWorkbook(inputFile.getInputStream());
}
 

/**
 * 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());
}
 

public int doEndTag() throws JspException {
    Locale locale = RequestContextUtils.getLocale((HttpServletRequest) pageContext.getRequest());
    String result = StringUtil.formatBytes(bytes, locale);

    try {
        pageContext.getOut().print(result);
    } catch (IOException x) {
        throw new JspTagException(x);
    }
    return EVAL_PAGE;
}
 

/**
 * 获取国际化提示信息  ?lang=en_US / zh_CN
 */
protected String getI18nMessage(HttpServletRequest request, String messageKey) {
    Locale locale = RequestContextUtils.getLocale(request);
    return messageSource.getMessage(messageKey, null, locale);
}
 

@Override
public Locale getLocale() {
	return RequestContextUtils.getLocale(getRequest());
}
 

@Override
public Locale getLocale() {
	return RequestContextUtils.getLocale(getRequest());
}
 

@Override
public Locale getLocale() {
	return RequestContextUtils.getLocale(this.request);
}
 

/**
 * Resolves standard method arguments. The default implementation handles {@link NativeWebRequest},
 * {@link ServletRequest}, {@link ServletResponse}, {@link HttpSession}, {@link Principal},
 * {@link Locale}, request {@link InputStream}, request {@link Reader}, response {@link OutputStream},
 * response {@link Writer}, and the given {@code thrownException}.
 * @param parameterType the method parameter type
 * @param webRequest the request
 * @param thrownException the exception thrown
 * @return the argument value, or {@link WebArgumentResolver#UNRESOLVED}
 */
protected Object resolveStandardArgument(Class<?> parameterType, NativeWebRequest webRequest,
		Exception thrownException) throws Exception {

	if (parameterType.isInstance(thrownException)) {
		return thrownException;
	}
	else if (WebRequest.class.isAssignableFrom(parameterType)) {
		return webRequest;
	}

	HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
	HttpServletResponse response = webRequest.getNativeResponse(HttpServletResponse.class);

	if (ServletRequest.class.isAssignableFrom(parameterType)) {
		return request;
	}
	else if (ServletResponse.class.isAssignableFrom(parameterType)) {
		return response;
	}
	else if (HttpSession.class.isAssignableFrom(parameterType)) {
		return request.getSession();
	}
	else if (Principal.class.isAssignableFrom(parameterType)) {
		return request.getUserPrincipal();
	}
	else if (Locale.class == parameterType) {
		return RequestContextUtils.getLocale(request);
	}
	else if (InputStream.class.isAssignableFrom(parameterType)) {
		return request.getInputStream();
	}
	else if (Reader.class.isAssignableFrom(parameterType)) {
		return request.getReader();
	}
	else if (OutputStream.class.isAssignableFrom(parameterType)) {
		return response.getOutputStream();
	}
	else if (Writer.class.isAssignableFrom(parameterType)) {
		return response.getWriter();
	}
	else {
		return WebArgumentResolver.UNRESOLVED;

	}
}
 

/**
 * Resolves standard method arguments. The default implementation handles {@link NativeWebRequest},
 * {@link ServletRequest}, {@link ServletResponse}, {@link HttpSession}, {@link Principal},
 * {@link Locale}, request {@link InputStream}, request {@link Reader}, response {@link OutputStream},
 * response {@link Writer}, and the given {@code thrownException}.
 * @param parameterType the method parameter type
 * @param webRequest the request
 * @param thrownException the exception thrown
 * @return the argument value, or {@link WebArgumentResolver#UNRESOLVED}
 */
protected Object resolveStandardArgument(Class<?> parameterType, NativeWebRequest webRequest,
		Exception thrownException) throws Exception {

	if (parameterType.isInstance(thrownException)) {
		return thrownException;
	}
	else if (WebRequest.class.isAssignableFrom(parameterType)) {
		return webRequest;
	}

	HttpServletRequest request = webRequest.getNativeRequest(HttpServletRequest.class);
	HttpServletResponse response = webRequest.getNativeResponse(HttpServletResponse.class);

	if (ServletRequest.class.isAssignableFrom(parameterType)) {
		return request;
	}
	else if (ServletResponse.class.isAssignableFrom(parameterType)) {
		return response;
	}
	else if (HttpSession.class.isAssignableFrom(parameterType)) {
		return request.getSession();
	}
	else if (Principal.class.isAssignableFrom(parameterType)) {
		return request.getUserPrincipal();
	}
	else if (Locale.class == parameterType) {
		return RequestContextUtils.getLocale(request);
	}
	else if (InputStream.class.isAssignableFrom(parameterType)) {
		return request.getInputStream();
	}
	else if (Reader.class.isAssignableFrom(parameterType)) {
		return request.getReader();
	}
	else if (OutputStream.class.isAssignableFrom(parameterType)) {
		return response.getOutputStream();
	}
	else if (Writer.class.isAssignableFrom(parameterType)) {
		return response.getWriter();
	}
	else {
		return WebArgumentResolver.UNRESOLVED;

	}
}
 

/**
 * Render the FreeMarker view to the given response, using the given model
 * map which contains the complete template model to use.
 * <p>The default implementation renders the template specified by the "url"
 * bean property, retrieved via {@code getTemplate}. It delegates to the
 * {@code processTemplate} method to merge the template instance with
 * the given template model.
 * <p>Adds the standard Freemarker hash models to the model: request parameters,
 * request, session and application (ServletContext), as well as the JSP tag
 * library hash model.
 * <p>Can be overridden to customize the behavior, for example to render
 * multiple templates into a single view.
 * @param model the model to use for rendering
 * @param request current HTTP request
 * @param response current servlet response
 * @throws IOException if the template file could not be retrieved
 * @throws Exception if rendering failed
 * @see #setUrl
 * @see org.springframework.web.servlet.support.RequestContextUtils#getLocale
 * @see #getTemplate(java.util.Locale)
 * @see #processTemplate
 * @see freemarker.ext.servlet.FreemarkerServlet
 */
protected void doRender(Map<String, Object> model, HttpServletRequest request,
		HttpServletResponse response) throws Exception {

	// Expose model to JSP tags (as request attributes).
	exposeModelAsRequestAttributes(model, request);
	// Expose all standard FreeMarker hash models.
	SimpleHash fmModel = buildTemplateModel(model, request, response);

	// Grab the locale-specific version of the template.
	Locale locale = RequestContextUtils.getLocale(request);
	processTemplate(getTemplate(locale), fmModel, response);
}