springboot 事件监听

定义事件@Getterpublic class TestEvent extends ApplicationEvent { private String msg; public TestEvent(Object source, String msg) { super(source); this.msg = msg; }}定义事件监听(注解方式) @Component public class TestListen { @EventListener public void testListen(TestEvent event) { System.out.println(event.getMsg()); }}注意：@Component 注解发布事件@Autowiredprivate ApplicationContext publiser;@GetMapping(“test-listen”)public void testListen() { for (int i = 0; i < 10; i++) { System.out.println(“i = " + i); } publiser.publishEvent(new TestEvent(this, “测试事件监听”)); for (int j = 0; j < 10; j++) { System.out.println(“j = " + j); }}测试时执行顺序：i循环打印"event = [测试事件监听]“j循环异步监听监听加上@Async注解@Componentpublic class TestListen { @EventListener @Async public void testListen(TestEvent event) { for (int i = 0; i < 10; i++) { System.out.println(“event = [” + event.getMsg() + “]”); } }}测试时执行顺序：i循环j循环打印"event = [测试事件监听]“代码： async