Question

有没有办法在控制台应用程序中监听终止信号？是否可以在用户停止之前向用户发送消息？

Answer 1

您可以使用Runtime.html#addShutdownHook(java.lang.Thread)

public class JVMShutdownHookTest {
  public static void main(String[] args) {
    JVMShutdownHook jvmShutdownHook = new JVMShutdownHook();
    Runtime.getRuntime().addShutdownHook(jvmShutdownHook);
    System.out.println("JVM Shutdown Hook Registered.");
    System.out.println("Pre exit.");
    System.exit(0);
    System.out.println("Post exit.");
  }

  private static class JVMShutdownHook extends Thread {
    public void run() {
      System.out.println("JVM Shutdown Hook: Thread initiated.");
    }
  }
}

Output:
JVM Shutdown Hook Registered.
Pre exit.
JVM Shutdown Hook: Thread initiated.

了解更多here

Answer 2

您可以使用java.lang.Runtime.addShutdownHook(Thread)在JVM关闭过程之前运行一些代码......

Answer 3

您可以使用本机代码，如here

所述

如何在java中收听终止应用？

3 个答案: