Using some beans in Filter bean class?

In my filter bean class, I added some beans dependency (with @Autowired annotation). But in the method doFilter(), all my dependency beans have null ...

public class FacebookOAuth implements Filter
{
@Autowired
private BusinessLogger logger;

@Autowired
private IUserSessionInfo userSessionInfo;

@Autowired
private FacebookOAuthHelper oAuthHelper;

public void init(FilterConfig fc) throws ServletException
{
    // Nothing to do
}

public void doFilter(ServletRequest sr, ServletResponse sr1, FilterChain fc) throws   IOException, ServletException
{
    // HttpServletRequest req = (HttpServletRequest)sr;
    HttpServletResponse res = (HttpServletResponse) sr1;

    String code = sr.getParameter("code");

    if (StringUtil.isNotBlankStr(code))
    {
        String authURL = this.oAuthHelper.getAuthURL(code);

this.oAuthHelper is equal at null (and other dependancy beans to) ...

Could you help me ?

In fact I don't use MVC notion on server side (Spring). For my side client I use Flex technology and BlazeDS servlet ton communicate with my server.

So, that is the reason, I use the Filter bean notion.

So, how can I handle my session bean notion in my Filter bean ?

Skaffman,

I implemented your idea, so I update my application.xml with :

<bean id="FacebookOAuthHandler" class="com.xx.FacebookOAuthHandler" />
<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
    <props>
       <prop key="/fbauth">FacebookOAuthHandler</prop>         
    </props>
   </property>
</bean>

and my FacebookOAuthHandler class :

public class FacebookOAuthHandler extends AbstractController
{
@Autowired
private BusinessLogger logger;

@Autowired
private IUserSessionInfo userSessionInfo;

@A