<result name="success" type="redirect">${originalURL}</result>

        <action name="slogin" class="com.action.LoginAction">
            <param name="defaultURL">/index.action</param>
            <result name="success" type="redirect">${originalURL}</result>
            <result name="error" type="redirect">http://xxx/logout</result>
        </action>


            public String getOriginalURL()
            {
                String orginalURL = (String)ActionContext.getContext().getSession().remove("_ORIGINAL_URL_");
                if(orginalURL == null)
                    orginalURL = defaultURL;
                return orginalURL;
            }

            private String defaultURL;