package com.thread.hook;/*** 給應用程序注入鉤子程序*/ public class ExitCapture {public static void main(String[] args) {Runtime.getRuntime().addShutdownHook(new Thread(()->{System.out.println("程序將要退出");notifyAndRelease();}));int i = 0;while (true){try {Thread.sleep(1_000);System.out.println("working.....");} catch (InterruptedException e) {e.printStackTrace();}i++;if (i==15){throw new RuntimeException("error");}}}public static void notifyAndRelease(){System.out.println("notify to the admin");try {Thread.sleep(1_000);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("線程將要釋放資源");try {Thread.sleep(1_000);} catch (InterruptedException e) {e.printStackTrace();}System.out.println("已經釋放資源");} }

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