How to use Remember me in spring security for custom authentication - cookies

Question

Can any one give me idea how to use Remember me check box in spring security for custom authentication,
this is my remember me field in login page
and this is the configuration in secuirty.xml
thanks

Answer 1

As defined in Spring Docs, when one declares a "remember-me", the "user-service-ref" should be:
"The remember-me services implementations require access to a
UserDetailsService, so there has to be one defined in the application
context."
However, in your case, your user-service-ref is a ref to a bean of type MyCustomAuthentication. This is why you get the ClassCastException "MyCustomAuthentication cannot be cast to UserDetailsService".
You should define something like:
<security:user-service id="userDetailsService">
<security:user name="username" password="pass" authorities="ROLE_USER" />
</security:user-service>
and use this id in the "user-service-ref"
P.S. IMHO you will have to fix your authentication-provider as well
HTH
For your request, to be more precise:
<http auto-config="true" use-expressions="true">
...
<remember-me user-service-ref="customUserDetailsManager"/>
</http>
<b:bean id="customUserDetailsManager"
class="com.something.something.MyCustomUserDetailsManager" />
<authentication-manager>
<authentication-provider user-service-ref="customUserDetailsManager">
</authentication-provider>
</authentication-manager>
</b:beans>
Note that MyCustomUserDetailsManager should implement UserDetailsManager
Another important note (from the docs):
Note that both (Spring's) implemementations require a
UserDetailsService. If you are using an authentication provider which
doesn't use a UserDetailsService (for example, the LDAP provider) then
it won't work unless you also have a UserDetailsService bean in your
application context.