java spring threadpooltaskexecutor导致tomcat内存泄漏

Question

我知道这个问题被问了好几次，但没有一个能提供正确答案，所以重新发布

我有一个在Tomcat7中运行的Spring4Jersey Web服务

我正在使用Spring的ThreadPoolTaskExecutor来处理队列中的一些消息。我有一个bean，它使用@Scheduled，每1000毫秒向执行者提交一次任务

然而，我注意到当我关闭Tomcat时，它警告我它不能关闭某些任务

    SEVERE: The web application appears to have started a thread named [taskExecutor-9] but has failed to stop it. This is very likely to create a memory leak.
 org.apache.catalina.loader.WebappClassLoader clearReferencesThreads

这是我用来初始化taskExecutor的代码

@Bean(destroyMethod="shutdown")
 public Executor taskExecutor() {
     return Executors.newScheduledThreadPool(100);
 }

http://docs.spring.io/spring/docs/3.2.0.RC1_to_3.2.0.RC2/changes/docdiffs_org.springframework.scheduling.annotation.html

提到spring会处理我创建的线程；但不幸的是，情况似乎并非如此

有人能提供一些建议吗

Answer 1

作为一个web应用程序，您可以尝试以下内容：

您的计划配置类

@Configuration
@EnableScheduling
public class SchedulerConfig implements SchedulingConfigurer {

    /* Beans and Other Stuff */

    @Override
    public void configureTasks(ScheduledTaskRegistrar taskRegistrar) {
        taskRegistrar.setScheduler(workers());
    }

    @Bean(name = "executorService")
    ExecutorService workers() {
        return Executors.newScheduledThreadPool(100);
    }

}

关闭ServletContextListener的contextDestroyed方法中的ExecutorService

@Configuration
public class CustomServletContextListener implements ServletContextListener {

    @Autowired
    private ExecutorService executorService;

    @Override
    public void contextInitialized(ServletContextEvent context) {
        /* Do stuff If Required */
    }

    @Override
    public void contextDestroyed(ServletContextEvent context) {
        executorService.shutdown();
    }

}

为我工作，我使用Tomcat8