org.springframework.beans.factory.BeanCreationException: Could not autowire field: private

I got this exception in my project(jsf+Spring+hibernate):

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userBean': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.aa.customer.CustomerService com.aa.customer.UserBean.customerService; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [com.aa.customer.CustomerService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Here is applicationContext.xml:

<?xml version='1.0' encoding='UTF-8' ?>
<!-- was: <?xml version="1.0" encoding="UTF-8"?> -->
<beans  xmlns="http://ift.tt/GArMu6"
        xmlns:xsi="http://ift.tt/ra1lAU"
        xmlns:aop="http://ift.tt/OpNdV1"
        xmlns:c="http://ift.tt/MffYna"
        xmlns:context="http://ift.tt/GArMu7"
        xmlns:flow="http://ift.tt/19rsrif"
        xmlns:jee="http://ift.tt/OpNaZ5"
        xmlns:jms="http://ift.tt/1iMF6wC"
        xmlns:lang="http://ift.tt/OGfeTY"
        xmlns:osgi="http://ift.tt/1apCv6f"
        xmlns:p="http://ift.tt/1jdM0fE"
        xmlns:tx="http://ift.tt/OGfeU2"
        xmlns:util="http://ift.tt/OGfeTW"

        xsi:schemaLocation="http://ift.tt/GArMu6
                            http://ift.tt/18sW2ax
                           http://ift.tt/OpNdV1
                           http://ift.tt/JvbN5c
                            http://ift.tt/GArMu7
                           http://ift.tt/1bGeTcI
                           http://ift.tt/19rsrif
                           http://ift.tt/1iMF6wL
                           http://ift.tt/OpNaZ5
                           http://ift.tt/JvbN5h
                           http://ift.tt/1iMF6wC
                           http://ift.tt/1Fj1J6D
                           http://ift.tt/OGfeTY
                           http://ift.tt/1pFdnVn
                           http://ift.tt/1apCv6f
                           http://ift.tt/VRFjZG
                            http://ift.tt/OGfeU2
                           http://ift.tt/1cKeJ93
                          http://ift.tt/OGfeTW
                           http://ift.tt/1aj0W5e">

    <!-- Activates scanning of @Autowired -->
    <context:annotation-config/>

    <!-- Activates scanning of @Repository and @Service -->
    <context:component-scan base-package="com.aa.customer"/>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          destroy-method="close">
        <property name="driverClassName" value="com.mysql.jdbc.Driver" />
        <property name="url" value="jdbc:mysql://localhost:3306/obs" />
        <property name="username" value="root" />
        <property name="password" value="2323" />
    </bean>

    <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean" 
          p:dataSource-ref="dataSource"
          p:packagesToScan="com.aa.customer"
          p:hibernateProperties-ref="hibernateProperties"/>

    <util:properties id="hibernateProperties">
        <prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
        <prop key="hibernate.max_fetch_depth">3</prop>
        <prop key="hibernate.jdbc.fetch_size">50</prop>
        <prop key="hibernate.jdbc.batch_size">10</prop>
        <prop key="hibernate.hbm2ddl.auto">update</prop> 
        <prop key="hibernate.show_sql">true</prop>
    </util:properties>

    <bean id="transactionManager"
          class="org.springframework.orm.hibernate4.HibernateTransactionManager">
        <property name="sessionFactory" ref="sessionFactory" />
    </bean>
    <!-- Detect @Transactional Annotation -->
    <tx:annotation-driven transaction-manager="transactionManager" />

</beans>

This is web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.0" xmlns="http://ift.tt/nSRXKP" xmlns:xsi="http://ift.tt/ra1lAU" xsi:schemaLocation="http://ift.tt/nSRXKP http://ift.tt/1eWqHMP">

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>

    <context-param>
        <param-name>javax.faces.PROJECT_STAGE</param-name>
        <param-value>Development</param-value>
    </context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <servlet>
        <servlet-name>Faces Servlet</servlet-name>
        <servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>Faces Servlet</servlet-name>
        <url-pattern>*.xhtml</url-pattern>
    </servlet-mapping>

    <welcome-file-list>
        <welcome-file>Registration.xhtml</welcome-file>
    </welcome-file-list>
</web-app>

Now here is UserBean :

@ManagedBean
@SessionScoped
@Component
public class UserBean {

private String username;
private String password;
private String email;
@Autowired
private CustomerService customerService;
//other methods
}

Here is CustomerService class:

@Service
public class CustomerService implements ServiceInterface<Customers, Integer> {

@Autowired
private CustomerDao customerDao;

public CustomerService() {
    customerDao = new CustomerDao();
 }
//other methods
}

And here is CustomerDao class:

@Repository
public class CustomerDao implements DaoInterface<Customers, Integer>, Serializable {

@Autowired
private SessionFactory sessionFactory;

private Session session;
private Transaction transaction;
//other methods
}

What is wrong with my code?