How to use userbean in controller-service-dao architecture? - spring-mvc

Question

I have UserBean in my Spring-MVC project to store user.
#Component
#Scope(value="session", proxyMode = ScopedProxyMode.TARGET_CLASS)
public class UserBeanImpl implements UserBean {
private User user;
#Override
public User getUser() {
return user;
}
#Override
public UserBean setUser(User user) {
this.user = user;
return this;
}
}
Can I autowire it into service layer? Should I autowire it only into controllers?
First way (autowire into servise):
#Service
public class MyServiceImpl implements MyService {
#Autowired
UserBean userBean;
#Override
public void doSomething(int id) {
dao.doSomething(id,userBean.getUser());
}
Second way (autowire into cotroller):
#Service
public class MyServiceImpl implements MyService {
#Override
public void doSomething(int id, User user) {
dao.doSomething(id, user);
}
}
#Controller
public class MyController {
#Autowired
UserBean userBean;
#RequestMapping(value = {"/"})
public void do(#RequestParam("id") int id) {
myService.doSomething(id, userBean.getUser());
}
}
What is better in terms of Spring MVC-Service-DAO architecture?

Answer 1

#Service
public class MyServiceImpl implements MyService {
#Autowired
UserBean userBean;
#Override
public void doSomething(int id) {
dao.doSomething(id,userBean.getUser());
}
This is the best way (Service), because the controller layer should be used to get the requests, send responses and call Services to run Business logic. Save a user is a service layer task.