Spring 中，对象销毁前执行某些处理的方法
通过 @PreDestroy 和 bean 中配置 destroy-method 实现该功能
java 代码中：
1: public class TestClass {
2: private ScheduledExecutorService scheduledExecutorService = Executors.newScheduledThreadPool(1);
3: public TestClass() {
4: scheduledExecutorService.scheduleAtFixedRate(task1, 1, 5, TimeUnit.MINUTES);
5: }
6:
7: Runnable task1 = new Runnable() {
8: public void run() {
9: System.out.println("task1 excuted.");
10: }
11: }
12:
13: @PreDestroy
14: public void DestroyMethod() {
15: scheduledExecutorService.shutdownNow();
16: }
17: }
bean 配置文件中：
1: <beans xmlns="http://www.springframework.org/schema/beans"
2: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
3: xmlns:tx="http://www.springframework.org/schema/tx" xmlns:task="http://www.springframework.org/schema/task"
4: xsi:schemaLocation="
5: http://www.springframework.org/schema/beans
6: http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
7: http://www.springframework.org/schema/tx
8: http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
9: http://www.springframework.org/schema/aop
10: http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
11: http://www.springframework.org/schema/task
12: http://www.springframework.org/schema/task/spring-task-3.0.xsd">
13:
14: <bean id="testClass" class="com.xxx.xxx.TestClass" destroy-method="DestroyMethod">
15: </bean>
16: </beans>
