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spring aop切面执行顺序

     

             

                              

切面执行顺序

       

现有切面1、切面2对同一个切点按先后顺序执行（切面1先于切面2执行）

切面1：@Before、@After、@AfterReturnning、@AfterThrowing、@Around 执行前、@Around 正常执行、@Around 异常执行、@Around 执行后切面2：@Before、@After、@AfterReturnning、@AfterThrowing、@Around 执行前、@Around 正常执行、@Around 异常执行、@Around 执行后

         

切点正常执行

# 切点执行前
切面1：@Around 执行前、@Before
切面2：@Around 执行前、@Before切点执行# 切点执行后
切面2：@AfterReturning、@After、@Around 正常执行、@Around 执行后
切面1：@AfterReturning、@After、@Around 正常执行、@Around 执行后

      

切点异常执行

# 切点执行前
切面1：@Around 执行前、@Before
切面2：@Around 执行前、@Before切点执行# 切点执行后
切面2：@AfterThrowing、@After、@Around 异常执行、@Around 执行后
切面1：@AfterThrowing、@After、@Around 异常执行、@Around 执行后

       

              

                              

使用示例

            

                         

            

HelloService

public interface HelloService {String hello();
}

      

HelloServiceImpl

@Service
public class HelloServiceImpl implements HelloService {@Overridepublic String hello() {return "hello";}
}

       

CustomAspect

@Aspect
@Order(-2)
@Component
public class CustomAspect {@Pointcut("execution(* *.hello()) && within(com.example.demo.service..*)")public void fun(){}@Before("fun()")public void before(){System.out.println("CustomAspect before");}@After("fun()")public void after(){System.out.println("CustomAspect after");}@AfterReturning("fun()")public void afterReturning(){System.out.println("CustomAspect afterReturning");}@AfterThrowing("fun()")public void afterThrowing(){System.out.println("CustomAspect afterThrowing");}@Around("fun()")public Object around(ProceedingJoinPoint joinPoint) throws Throwable{Object result = null;System.out.println("CustomAspect around执行前");try {result = joinPoint.proceed();System.out.println("CustomAspect around执行后正常返回");}catch (Throwable e){e.printStackTrace();System.out.println("CustomAspect around执行后抛出异常");throw e;}finally {System.out.println("CustomAspect around执行后");}return result;}
}

        

CustomAspect2

@Aspect
@Order(-1)
@Component
public class CustomAspect2 {@Pointcut("execution(* *.hello()) && within(com.example.demo.service..*)")public void fun(){}@Before("fun()")public void before(){System.out.println("CustomAspect2 before");}@After("fun()")public void after(){System.out.println("CustomAspect2 after");}@AfterReturning("fun()")public void afterReturning(){System.out.println("CustomAspect2 afterReturning");}@AfterThrowing("fun()")public void afterThrowing(){System.out.println("CustomAspect2 afterThrowing");}@Around("fun()")public Object around(ProceedingJoinPoint joinPoint) throws Throwable{Object result = null;System.out.println("CustomAspect2 around执行前");try {result = joinPoint.proceed();System.out.println("CustomAspect2 around执行后正常返回");}catch (Throwable e){e.printStackTrace();System.out.println("CustomAspect2 around执行后抛出异常");throw e;}finally {System.out.println("CustomAspect2 around执行后");}return result;}
}

      

HelloController

@RestController
public class HelloController {@Resourceprivate HelloService helloService;@RequestMapping("/hello")public String hello(){return helloService.hello();}
}

       

            

                              

使用测试

   

localhost:8080/hello，控制台输出：

CustomAspect around执行前
CustomAspect before
CustomAspect2 around执行前
CustomAspect2 before
CustomAspect2 afterReturning
CustomAspect2 after
CustomAspect2 around执行后正常返回
CustomAspect2 around执行后
CustomAspect afterReturning
CustomAspect after
CustomAspect around执行后正常返回
CustomAspect around执行后