EJB3. 0 有状态的会话Bean的生命周期 Does Not Exist Timeout 1. Remove method or Timeout 1. Dependency injection 2. Pre Destroy callbacks if any if any 2. PostConstruct callbacks if any Pre Passivate callbacks. if an Ready Passive PostActivate callbacks, if anyEJB3.0 ◼ 有状态的会话Bean 的生命周期