Spring security using JPA. How to configure applicationContext-security.XML file?(using DaoAuthenticationProvider)

I was using JDBC Authentication service for my security. code of authentication provider is ,

<authentication-provider>
    <jdbc-user-service id="userDetailsService" data-source-ref="dataSource" />
</authentication-provider>

And for data source,

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource" >
  <property name="driverClassName" value="com.mysql.jdbc.Driver" /> 
  <property name="url" value="jdbc:mysql://localhost:3306/demodata" /> 
  <property name="username" value="root"/> 
  <property name="password" value="root"/> 
</bean>

Also I was using daoAuthenticationProvider , code of that is,

<beans:bean id="daoAuthenticationProvider" class="org.springframework.security.providers.dao.DaoAuthenticationProvider">
  <property name="userDetail开发者_运维知识库sService" ref="userDetailsService"/>
  <property name="saltSource" ref bean="saltSource"/>
  <property name="passwordEncoder" ref="passwordEncoder"/>
</beans:bean>

And It was working properly. Now I want to use JPA connection instead of JDBC. So I Created new class CustomUserDetailsService which implements UserDetailsService Interface. Now My authentication provider looks like,

<authentication-provider  user-service-ref="CustomUserDetailsService">
</authentication-provider>
<beans:bean id="CustomUserDetailsService" class="com.service.CustomUserDetailsService" />

Authentication manager's code :

<beans:bean id="authenticationManager"
        class="org.springframework.security.providers.ProviderManager">
        <beans:property name="providers"><beans:list>
                <beans:ref local="daoAuthenticationProvider" />
        </beans:list> </beans:property>
        <beans:property name="sessionController"
            ref="defaultConcurrentSessionController" />
</beans:bean>

Problem is that, Now how do I give its reference in daoAuthenticationProvider's property userDetailsService? Thank you in advance. (I can provide more information if needed)

---

??? Just reference the new UserDetailsService by id:

<beans:bean id="daoAuthenticationProvider"
  class="org.springframework.security.providers.dao.DaoAuthenticationProvider">
  <property name="userDetailsService" ref="CustomUserDetailsService"/>
  <property name="saltSource" ref bean="saltSource"/>
  <property name="passwordEncoder" ref="passwordEncoder"/>
</beans:bean>

Or am I missing something?

---

Instead of

<authentication-provider  user-service-ref="CustomUserDetailsService">
</authentication-provider>
<beans:bean id="CustomUserDetailsService" 
    class="com.service.CustomUserDetailsService" />

Can you try the following as suggested here?

<beans:bean id="CustomUserDetailsService" class="com.service.CustomUserDetailsService">
    <custom-authentication-provider/>
</beans>