案例：测量业务层接口万次执行效率

@Configuration
@ComponentScan("com.xxx")
@PropertySource("classpath:jdbc.properties")
@Import({JdbcConfig.class,MybatisConfig.class})
@EnableAspectJAutoProxy
public class SpringConfig{

}

@Component
@Aspect
public class ProjectAdvice{

    //匹配业务层的所有方法
    @Pointcut("execution(* com.xxx.service.*Service().*(..))")
    private void servicePt(){}

    @Around("ProjectAdvice.servicePt()")
    public void runSpeed(ProceedingJoinPoint pjp) throws Throwable{
        Signature signature = pjp.getSignature();
        String className = signature.getDeclaringTypeName();
        String methodName = signature.getName();

        long start = System.currentTimeMillis();
        for (int i = 0; i < 10000; i++){
            pjp.proceed();
        }
        long end = System.currentTimeMillis();
        System.out.println("万次执行： " + className + "." + methodName + "----->" + (end-start) + "ms");
    }
}

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(classes = SpringConfig.class)
public class AccountServiceTestCase {
    @Autowired
    private AccountService accountService;

    @Test
    public void testFindById(){
        Account as = accountService.findById(2);
    }

    @Test
    public void testFindAll(){
        List<Account> all = accountService.findAll();
    }
}