org.springframework.web.filter
Class RequestContextFilter

java.lang.Object
  org.springframework.web.filter.GenericFilterBean
      org.springframework.web.filter.OncePerRequestFilter
          org.springframework.web.filter.RequestContextFilter

All Implemented Interfaces:

Filter, BeanNameAware, DisposableBean, InitializingBean, ServletContextAware

public class RequestContextFilter
extends OncePerRequestFilter

Servlet filter that exposes the request to the current thread, through both LocaleContextHolder and RequestContextHolder.

Useful for application objects that need access to the current request. Does not require any configuration parameters.

Alternatively, Spring's RequestContextListener and Spring's DispatcherServlet also expose the same request context to the current thread.

Since:

2.0

Author:

Rod Johnson, Juergen Hoeller

See Also:

LocaleContextHolder, RequestContextHolder, RequestContextListener, DispatcherServlet

Field Summary

Fields inherited from class org.springframework.web.filter.OncePerRequestFilter

ALREADY_FILTERED_SUFFIX

Fields inherited from class org.springframework.web.filter.GenericFilterBean

logger

Constructor Summary

RequestContextFilter()

Method Summary

protected void

doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) Same contract as for doFilter, but guaranteed to be just invoked once per request.

Methods inherited from class org.springframework.web.filter.OncePerRequestFilter

doFilter, getAlreadyFilteredAttributeName, shouldNotFilter

Methods inherited from class org.springframework.web.filter.GenericFilterBean

addRequiredProperty, afterPropertiesSet, destroy, getFilterConfig, getFilterName, getServletContext, init, initBeanWrapper, initFilterBean, setBeanName, setFilterConfig, setServletContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RequestContextFilter

public RequestContextFilter()

Method Detail

doFilterInternal

protected void doFilterInternal(HttpServletRequest request,
                                HttpServletResponse response,
                                FilterChain filterChain)
                         throws ServletException,
                                IOException

Description copied from class: OncePerRequestFilter

Same contract as for doFilter, but guaranteed to be just invoked once per request. Provides HttpServletRequest and HttpServletResponse arguments instead of the default ServletRequest and ServletResponse ones.

Specified by:

doFilterInternal in class OncePerRequestFilter

Throws:

ServletException

IOException