How to integrate wicket frame work with spring

[bhupat parmar]

hi
i need help in integrating wicket frame work with spring frame .i am using
direct approach for this but my dao object is returning null.and the
applicationcontext.xml is

<bean id="wicketApplication" class="project.MyApplication">
    <property name="contactDao" ref="contactDao"/>
</bean>
is throwing exception for undefined bean.
can some body help.

thanks