/**
?*?A?marker?superinterface?indicating?that?a?bean?is?eligible?to?be?notified?by?the
?*?Spring?container?of?a?particular?framework?object?through?a?callback-style?method.
?*?The?actual?method?signature?is?determined?by?individual?subinterfaces?but?should
?*?typically?consist?of?just?one?void-returning?method?that?accepts?a?single?argument.
?*
?*?<p>Note?that?merely?implementing?{@link?Aware}?provides?no?default?functionality.
?*?Rather,?processing?must?be?done?explicitly,?for?example?in?a
?*?{@link?org.springframework.beans.factory.config.BeanPostProcessor}.
?*?Refer?to?{@link?org.springframework.context.support.ApplicationContextAwareProcessor}
?*?for?an?example?of?processing?specific?{@code?*Aware}?interface?callbacks.
?*
?*?@author?Chris?Beams
?*?@author?Juergen?Hoeller
?*?@since?3.1
?*/
public?interface?Aware?{

}

@Service
public?class?UserService?{
????public?void?hello()?{
????????System.out.println("hello?javaboy!");
????}
}

@Component
public?class?BeanUtils?implements?BeanFactoryAware?{
????private?static?BeanFactory?beanFactory?=?null;

????@Override
????public?void?setBeanFactory(BeanFactory?beanFactory)?throws?BeansException?{
????????BeanUtils.beanFactory?=?beanFactory;
????}

????public?static?<T>?T?getBean(String?beanName)?{
????????return?(T)?beanFactory.getBean(beanName);
????}
}

UserService?userService?=?BeanUtils.getBean("userService");
userService.hello();

@Configuration
public?class?ThreadPoolConfig?{

????/**
?????*?執(zhí)行周期性或定時(shí)任務(wù)
?????*/
????@Bean(name?=?"scheduledExecutorService")
????protected?ScheduledExecutorService?scheduledExecutorService()?{
????????return?new?ScheduledThreadPoolExecutor(corePoolSize,
????????????????new?BasicThreadFactory.Builder().namingPattern("schedule-pool-%d").daemon(true).build(),
????????????????new?ThreadPoolExecutor.CallerRunsPolicy())?{
????????????@Override
????????????protected?void?afterExecute(Runnable?r,?Throwable?t)?{
????????????????super.afterExecute(r,?t);
????????????????Threads.printException(r,?t);
????????????}
????????};
????}
}
@Component
public?final?class?SpringUtils?implements?BeanFactoryPostProcessor,?ApplicationContextAware?{
????/**
?????*?Spring應(yīng)用上下文環(huán)境
?????*/
????private?static?ConfigurableListableBeanFactory?beanFactory;

????private?static?ApplicationContext?applicationContext;

????@Override
????public?void?postProcessBeanFactory(ConfigurableListableBeanFactory?beanFactory)?throws?BeansException?{
????????SpringUtils.beanFactory?=?beanFactory;
????}

????@Override
????public?void?setApplicationContext(ApplicationContext?applicationContext)?throws?BeansException?{
????????SpringUtils.applicationContext?=?applicationContext;
????}

????/**
?????*?獲取對(duì)象
?????*
?????*?@param?name
?????*?@return?Object?一個(gè)以所給名字注冊(cè)的bean的實(shí)例
?????*?@throws?org.springframework.beans.BeansException
?????*/
????@SuppressWarnings("unchecked")
????public?static?<T>?T?getBean(String?name)?throws?BeansException?{
????????return?(T)?beanFactory.getBean(name);
????}

????/**
?????*?獲取類型為requiredType的對(duì)象
?????*
?????*?@param?clz
?????*?@return
?????*?@throws?org.springframework.beans.BeansException
?????*/
????public?static?<T>?T?getBean(Class<T>?clz)?throws?BeansException?{
????????T?result?=?(T)?beanFactory.getBean(clz);
????????return?result;
????}
}

public?class?AsyncManager?{
????/**
?????*?操作延遲10毫秒
?????*/
????private?final?int?OPERATE_DELAY_TIME?=?10;

????/**
?????*?異步操作任務(wù)調(diào)度線程池
?????*/
????private?ScheduledExecutorService?executor?=?SpringUtils.getBean("scheduledExecutorService");

????/**
?????*?單例模式
?????*/
????private?AsyncManager()?{
????}

????private?static?AsyncManager?me?=?new?AsyncManager();

????public?static?AsyncManager?me()?{
????????return?me;
????}

????/**
?????*?執(zhí)行任務(wù)
?????*
?????*?@param?task?任務(wù)
?????*/
????public?void?execute(TimerTask?task)?{
????????executor.schedule(task,?OPERATE_DELAY_TIME,?TimeUnit.MILLISECONDS);
????}
}