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How do I access Request or Session from Seam?
Written by Mark S.   
JBoss daily recipe
Two ways :
1) Easy way: use ServletContexts.instance().getRequest() in your backing bean.

2) Define a factory in your component descriptor and inject the HttpServletRequest or HttpSession directly into your Seam component.


<factory name="httpRequest"
  value="#{facesContext.externalContext.request}"
  auto-create="true"/>
<factory name="httpSession"
  value="#{facesContext.externalContext.request.session}"
  auto-create="true"/>
@In HttpServletRequest httpRequest;
@In HttpSession httpSession;

If on the other hand you don't need the HttpRequest but only the request parameters, simply use the  @RequestParameter("parameterName") annotation which inject into your component the value of a request parameter
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