RequestContextUtils

<init>

Utility class for easy access to request-specific state which has been set by the org.springframework.web.servlet.DispatcherServlet.

Supports lookup of current WebApplicationContext, LocaleResolver, Locale, ThemeResolver, Theme, and MultipartResolver.

REQUEST_DATA_VALUE_PROCESSOR_BEAN_NAME

The name of the bean to use to look up in an implementation of RequestDataValueProcessor has been configured.

findWebApplicationContext

Look for the WebApplicationContext associated with the DispatcherServlet that has initiated request processing, and for the global context if none was found associated with the current request. The global context will be found via the ServletContext or via ContextLoader's current context.

NOTE: This variant remains compatible with Servlet 2.5, explicitly checking a given ServletContext instead of deriving it from the request.

Look for the WebApplicationContext associated with the DispatcherServlet that has initiated request processing, and for the global context if none was found associated with the current request. The global context will be found via the ServletContext or via ContextLoader's current context.

NOTE: This variant requires Servlet 3.0+ and is generally recommended for forward-looking custom user code.

getFlashMapManager

Return the FlashMapManager instance to save flash attributes.

As of 5.0 the convenience method #saveOutputFlashMap may be used to save the "output" FlashMap.

getInputFlashMap

Return read-only "input" flash attributes from request before redirect.

getLocale

Retrieve the current locale from the given request, using the LocaleResolver bound to the request by the DispatcherServlet (if available), falling back to the request's accept-header Locale.

This method serves as a straightforward alternative to the standard Servlet javax.servlet.http.HttpServletRequest#getLocale() method, falling back to the latter if no more specific locale has been found.

Consider using org.springframework.context.i18n.LocaleContextHolder#getLocale() which will normally be populated with the same Locale.

getLocaleResolver

Return the LocaleResolver that has been bound to the request by the DispatcherServlet.

getOutputFlashMap

Return "output" FlashMap to save attributes for request after redirect.

getTheme

Retrieves the current theme from the given request, using the ThemeResolver and ThemeSource bound to the request by the DispatcherServlet.

getThemeResolver

Return the ThemeResolver that has been bound to the request by the DispatcherServlet.

getThemeSource

Return the ThemeSource that has been bound to the request by the DispatcherServlet.

getTimeZone

Retrieve the current time zone from the given request, using the TimeZoneAwareLocaleResolver bound to the request by the DispatcherServlet (if available), falling back to the system's default time zone.

Note: This method returns null if no specific time zone can be resolved for the given request. This is in contrast to #getLocale where there is always the request's accept-header locale to fall back to.

Consider using org.springframework.context.i18n.LocaleContextHolder#getTimeZone() which will normally be populated with the same TimeZone: That method only differs in terms of its fallback to the system time zone if the LocaleResolver hasn't provided a specific time zone (instead of this method's null).

saveOutputFlashMap

Convenience method that retrieves the "output", updates it with the path and query params of the target URL, and then saves it using the FlashMapManager.