Java知识点

1. addShutdownHook

Runtime.getRuntime().addShutdownHook(new Thread() {

   @Override
   public void run() {
    try {
     // TODO 关闭服务时回收资源
    } catch (Exception e) {
     logger.error(e.getMessage(), e);
    }
    try {
     super.finalize();
    } catch (Throwable e) {
     StartUp.logger.error("super.finalize() error when stop server", e);
    }
   }
  });

2.

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原文：http://www.cnblogs.com/RoyalRaul/p/3638130.html