springboot(5)AOP代理

1、启动aop代理

添加maven依赖

<dependency>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-aop</artifactId>
</dependency>

向springboot的入口类添加注解@EnableAspectJAutoProxy，使注解@Aspect生效。

2、aspect代理

@Aspect
@Component
public class TestAspect {

	


	@Before("execution(* com.example.demo.action.*.* (..))")
	public void testBefore() {
		System.out.println("before");
	}
	
	


	@After("execution(* com.example.demo.action.*.* (..))")
	public void testAfter() {
		System.out.println("after");
	}
	
	




	@Around("execution(* com.example.demo.action.*.* (..))")
	public Object testAround(ProceedingJoinPoint pjp) throws Throwable {
		
		System.out.println("before");
		
		Object result = pjp.proceed();
		System.out.println("==========="+result);
		
		System.out.println("after");
		return result;
	}
	
	



	@AfterThrowing(pointcut="execution(* com.example.demo.action.*.* (..))",throwing="e")
	public void testThrowing(Exception e) {
		System.out.println(e.getMessage());
	}
}

3、pointcut表达式

推荐订阅源

祈雨的笔记

1、启动aop代理

2、aspect代理

3、pointcut表达式