如何在google appengine中实现关闭钩子处理程序

Question

如何在google appengine中实现shutdown hook handler。我在这里不了解他们的文件https://developers.google.com/appengine/docs/java/backends/overview#Shutdown。我需要的是，当后端由于任何原因而停止时，我需要在代码中得到通知。

this is my code
try{        
    while (haveMoreWork() &&
        !LifecycleManager.getInstance().isShuttingDown()) {
            process(); // this is my function to read all the data.if it fails because of termination.i need to be notified.
    }catch(Exception e){
        log.log(Level.SEVERE, e.getMessage(), e);
        log.severe("error occured"+e);
        log.info("failed ");
    }

Answer 1

您需要使用挂钩而不是状态报告：

LifecycleManager.getInstance().setShutdownHook(new ShutdownHook() {
  public void shutdown() {
    // code
  }
});