Question

Hav spring引导应用程序，在调用Shutdown hook @Predestroy方法时，会发生应用程序关闭。但是，日志不会同时打印在控制台和文件中，而是在打印日志后在sys out行中打印。看来，在应用程序/进程关闭控制台之前，请先将Looger控制台关闭。

建议解决此问题。

关机脚本：

SET / P PID_FROM_FILE =

Gracefulshutdown挂钩类：

@Component
public class GracefulShutdownHook {

private static final Logger LOGGER = LogManager.getLogger(GracefulShutdownHook.class);

@Autowired
@Qualifier("inboundChannel")
MessageChannel inboundChannel;

@Autowired
@Qualifier("pollingExecutor")
ThreadPoolTaskExecutor pollingExecutor;

@PreDestroy 
public void onDestroy() throws Exception {

    LOGGER.log(Level.INFO, "Application shutdown Initiated"); // this log is not printed
    System.out.println(""Application shutdown Initiated""); // Sys out is printed

    LOGGER.log(Level.INFO, "Application shutdown Processing"); // this log is not printed

    inboundChannel.send(new  GenericMessage<String>"@'filesInChannel.adapter'.stop()"));

    pollingExecutor.shutdown();

    LOGGER.log(Level.INFO, "Application shutdown succesfully"); // not printed
}

 @Bean
 public ExitCodeGenerator exitCodeGenerator() {
 return () -> 0;
 }
 }

Answer 1

我怀疑您在日志记录和关闭之间创建了竞争条件；也就是说，在完成日志记录之前会先进行关机。尝试在@PreDestroy方法的末尾添加短暂的睡眠，然后看看会有所作为。

Shutdownhook-控制台/文件@Predestroy方法中未打印日志

1 个答案: