bean的生命周期

public class UserService {
	
	private UserDAO userDAO;  
	
	public void init() {
		System.out.println("init");
	}
	
	public void add(User user) {
		userDAO.save(user);
	}
	public UserDAO getUserDAO() {
		return userDAO;
	}
	public void setUserDAO(UserDAO userDAO) {
		this.userDAO = userDAO;
	}
	
	public UserService(UserDAO userDAO) {
		super();
		this.userDAO = userDAO;
	}
	
	public void destroy() {
		System.out.println("destroy");
	}
}

 

bean.xml

 

 <bean id="userService" class="com.bjsxt.service.UserService" init-method="init"

                                                       destroy-method="destroy" scope="prototype">