使用Spring @Async异步执行方法的笔记

原创

mb64afcfe51e58c 2023-07-14 08:02:26 ©著作权

文章标签 java 测试 spring xml System 文章分类 HarmonyOS 后端开发

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测试代码：

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration(locations = { "/spring/*.xml" }) public class JobUtilsTest{ @Autowired private DaoService service; @Test public void testAsync() throws Exception { System.out.println("start" ); service.update(); // ★ 假设这个方法会比较耗时，需要异步执行 System.out.println("end"); Thread.sleep(3000); // 因为junit结束会结束jvm，所以让它等会异步线程 } }

@Service
public class DaoService {
	@Async
	public void update() {
		try {
			Thread.sleep(2000);
			// do something
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		System.out.println("operation complete.");
	}
}

applicationContext.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:context="http://www.springframework.org/schema/context"
	xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
    http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd
    http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">

	<context:component-scan base-package="com.chinacache" />
 
	<task:annotation-driven />
	
</beans>

输出结果：