關於springboot項目AOP切面不起作用

 首先先檢查自己是否添加了依賴,這個賊坑

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjrt</artifactId>
    <version>1.9.4</version>
</dependency>
<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.9.2</version>
</dependency>



其次 boot啟動類添加 aspect 自動代理以及包的掃描

@SpringBootApplication
@ComponentScan("com.example.demo.*")
@EnableAspectJAutoProxy(proxyTargetClass = true)
public class DemoApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoApplication.class, args);
 }

}

@Target(value = ElementType.METHOD)
@Retention(value = RetentionPolicy.RUNTIME)
@Documented
public @interface syslog {
}

@Aspect
@Component
@Slf4j
public class SysAspect {

    @Pointcut("@annotation(com.example.demo.utils.commons.syslog)")
    public void cutPoint(){}

    @AfterReturning("cutPoint()")
    public void sysNotic(JoinPoint joinPoint){
        log.info("嗚嗚嗚嗚嗚嗚嗚"+joinPoint.toString());
 System.out.println("后");
 }


}

@syslog
@RequestMapping(value = "/controller",method = RequestMethod.GET)
public int controller() throws NoSuchFieldException {
 System.out.println("進入方法了!");
 return 1;
}


最后打印結果
進入方法了!
2019-09-20 15:18:13.409  INFO 8064 --- [nio-8080-exec-1] c.example.demo.utils.commons.SysAspect   : 嗚嗚嗚嗚嗚嗚嗚execution(int com.example.demo.controller.diyAnnotationController.controller())
后