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• Ensure that servlet-config Interceptor is included in the Action's stack.
  • The default stack already includes servlet-config.
• Edit the Action so that it implements the ServletResponseAware interface.
  • The ServletResponseAware interface expects a setServletResponse method. You may wish to include a companion getServletResponse method.
• At runtime, call getServletResponse to obtain a reference to the response object.

  Info
  When the servlet-config Interceptor sees that an Action implements ServletResponseAware, it passes a reference to the request the Action's setServletResponse method.

  Tip
  It is more difficult to test Actions with runtime dependencies on HttpServletReponse. Only implement ServletResponseAware as a last resort. A better approach to solving a use case involving the response may be with a custom Result Type.

  @see action-default.xml
  @see org.apache.struts.action2.interceptor.ServletResponseAware
  @see org.apache.struts.action2.interceptor.ServletConfigInterceptor