我想试试aop怎么用，但是写好之后没有调用切面，而IDEA却找到了我的切面和切入点。。

配置类：

@Configuration

@EnableAspectJAutoProxy

@ComponentScan

public class CarConfig {

public static void main(String[] args) {

AnnotationConfigApplicationContext context =

new AnnotationConfigApplicationContext(CarConfig.class);

System.out.println("-------------Spring context loaded-------------");

Ferrari ferrari = context.getBean(Ferrari.class);

Driver driver = new Driver(new License("s3j3"));

int time = driver.drive(ferrari, 1000);

System.out.println("spent " + time + " hours");

System.out.println("-------------Spring context is going to close-----------");

context.close();

}

}

Driver:

public class Driver {

private License license;

public Driver(License license) {

this.license = license;

}

public int drive(Car car, int distance) {

if (license == null) return -1;

if (distance <= 0) return 0;

if (car == null || car.getSpeed() <= 0) return -1;

return distance / car.getSpeed() + 1;

}

}

Aspect:

@Aspect

@Component

public class Monitor {

@Pointcut(value = "execution(int cn.gaoyuexiang.spring.demo.test.aop.driver.Driver" +

".drive(cn.gaoyuexiang.spring.demo.test.aop.car.Car, int)) " +

"&& args(car, distance)")

public void drive(Car car, int distance) {}

@Before("drive(car, distance)")

public void aboard(Car car, int distance) {

String carName = car.getClass().getName();

System.out.println("the driver will drive a " + carName +

" to run " + distance + " kilometers");

}

}

目录结构：

.

├── aop

│   └── Monitor.java

├── car

│   ├── Car.java

│   └── Ferrari.java

├── CarConfig.java

└── driver

├── Driver.java

└── license

└── License.java

Spring输出：

15:53:46.560 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemProperties] PropertySource with lowest search precedence

15:53:46.572 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemEnvironment] PropertySource with lowest search precedence

15:53:46.573 [main] DEBUG org.springframework.core.env.StandardEnvironment - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]

15:53:46.741 [main] INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Refreshing org.springframework.context.annotation.AnnotationConfigApplicationContext@7fbe847c: startup date [Sun Aug 21 15:53:46 CST 2016]; root of context hierarchy

15:53:46.743 [main] DEBUG org.springframework.context.annotation.AnnotationConfigApplicationContext - Bean factory for org.springframework.context.annotation.AnnotationConfigApplicationContext@7fbe847c: org.springframework.beans.factory.support.DefaultListableBeanFactory@204f30ec: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,carConfig]; root of factory hierarchy

15:53:46.766 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'

15:53:46.767 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'

15:53:46.806 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor' to allow for resolving potential circular references

15:53:46.810 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'

15:53:46.868 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemProperties] PropertySource with lowest search precedence

15:53:46.869 [main] DEBUG org.springframework.core.env.StandardEnvironment - Adding [systemEnvironment] PropertySource with lowest search precedence

15:53:46.870 [main] DEBUG org.springframework.core.env.StandardEnvironment - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]

15:53:46.887 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Resolved classpath location [cn/gaoyuexiang/spring/demo/test/aop/] to resources [URL [file:/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/]]

15:53:46.889 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Looking for matching resources in directory tree [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop]

15:53:46.890 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop] for files matching pattern [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/**/*.class]

15:53:46.896 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/aop] for files matching pattern [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/**/*.class]

15:53:46.898 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/car] for files matching pattern [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/**/*.class]

15:53:46.900 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/driver] for files matching pattern [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/**/*.class]

15:53:46.901 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Searching directory [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/driver/license] for files matching pattern [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/**/*.class]

15:53:46.906 [main] DEBUG org.springframework.core.io.support.PathMatchingResourcePatternResolver - Resolved location pattern [classpath*:cn/gaoyuexiang/spring/demo/test/aop/**/*.class] to resources [file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/CarConfig.class], file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/aop/Monitor.class], file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/car/Car.class], file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/car/Ferrari.class], file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/driver/Driver.class], file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/driver/license/License.class]]

15:53:46.947 [main] DEBUG org.springframework.context.annotation.ClassPathBeanDefinitionScanner - Identified candidate component class: file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/aop/Monitor.class]

15:53:46.948 [main] DEBUG org.springframework.context.annotation.ClassPathBeanDefinitionScanner - Identified candidate component class: file [/home/melo/IdeaProjects/spring.demo.test/build/classes/main/cn/gaoyuexiang/spring/demo/test/aop/car/Ferrari.class]

15:53:47.221 [main] DEBUG org.springframework.context.annotation.ConfigurationClassEnhancer - Successfully enhanced cn.gaoyuexiang.spring.demo.test.aop.CarConfig; enhanced class name is: cn.gaoyuexiang.spring.demo.test.aop.CarConfig$$EnhancerBySpringCGLIB$$8c55e143

15:53:47.222 [main] DEBUG org.springframework.context.annotation.ConfigurationClassPostProcessor - Replacing bean definition 'carConfig' existing class 'cn.gaoyuexiang.spring.demo.test.aop.CarConfig' with enhanced class 'cn.gaoyuexiang.spring.demo.test.aop.CarConfig$$EnhancerBySpringCGLIB$$8c55e143'

15:53:47.227 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'

15:53:47.227 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'

15:53:47.229 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor' to allow for resolving potential circular references

15:53:47.229 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'

15:53:47.230 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'

15:53:47.230 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'

15:53:47.231 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor' to allow for resolving potential circular references

15:53:47.231 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'

15:53:47.231 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor'

15:53:47.231 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor'

15:53:47.236 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor' to allow for resolving potential circular references

15:53:47.237 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor'

15:53:47.237 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor'

15:53:47.237 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor'

15:53:47.237 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor' to allow for resolving potential circular references

15:53:47.238 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor'

15:53:47.238 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor'

15:53:47.238 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor'

15:53:47.238 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor' to allow for resolving potential circular references

15:53:47.239 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor'

15:53:47.243 [main] DEBUG org.springframework.context.annotation.AnnotationConfigApplicationContext - Unable to locate MessageSource with name 'messageSource': using default [org.springframework.context.support.DelegatingMessageSource@4450d156]

15:53:47.246 [main] DEBUG org.springframework.context.annotation.AnnotationConfigApplicationContext - Unable to locate ApplicationEventMulticaster with name 'applicationEventMulticaster': using default [org.springframework.context.event.SimpleApplicationEventMulticaster@1dd92fe2]

15:53:47.248 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@204f30ec: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,carConfig,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor,monitor,ferrari]; root of factory hierarchy

15:53:47.249 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.internalConfigurationAnnotationProcessor'

15:53:47.249 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.internalAutowiredAnnotationProcessor'

15:53:47.249 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.internalRequiredAnnotationProcessor'

15:53:47.249 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.internalCommonAnnotationProcessor'

15:53:47.249 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerProcessor'

15:53:47.250 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'

15:53:47.261 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.event.internalEventListenerProcessor' to allow for resolving potential circular references

15:53:47.297 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.event.internalEventListenerProcessor'

15:53:47.298 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'

15:53:47.298 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'

15:53:47.299 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'org.springframework.context.event.internalEventListenerFactory' to allow for resolving potential circular references

15:53:47.306 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'org.springframework.context.event.internalEventListenerFactory'

15:53:47.306 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'carConfig'

15:53:47.306 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'carConfig'

15:53:47.309 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'carConfig' to allow for resolving potential circular references

15:53:47.315 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'carConfig'

15:53:47.315 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor'

15:53:47.315 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor'

15:53:47.316 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'monitor'

15:53:47.316 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'monitor'

15:53:47.324 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'monitor' to allow for resolving potential circular references

15:53:47.327 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'monitor'

15:53:47.328 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating shared instance of singleton bean 'ferrari'

15:53:47.328 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Creating instance of bean 'ferrari'

15:53:47.329 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Eagerly caching bean 'ferrari' to allow for resolving potential circular references

15:53:47.333 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Finished creating instance of bean 'ferrari'

15:53:47.334 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'org.springframework.context.event.internalEventListenerFactory'

15:53:47.398 [main] DEBUG org.springframework.context.annotation.AnnotationConfigApplicationContext - Unable to locate LifecycleProcessor with name 'lifecycleProcessor': using default [org.springframework.context.support.DefaultLifecycleProcessor@436a4e4b]

15:53:47.399 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'lifecycleProcessor'

15:53:47.402 [main] DEBUG org.springframework.core.env.PropertySourcesPropertyResolver - Could not find key 'spring.liveBeansView.mbeanDomain' in any property source

-------------Spring context loaded-------------

15:53:47.406 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'ferrari'

spent 3 hours

-------------Spring context is going to close-----------

15:53:47.408 [main] INFO org.springframework.context.annotation.AnnotationConfigApplicationContext - Closing org.springframework.context.annotation.AnnotationConfigApplicationContext@7fbe847c: startup date [Sun Aug 21 15:53:46 CST 2016]; root of context hierarchy

15:53:47.409 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Returning cached instance of singleton bean 'lifecycleProcessor'

15:53:47.409 [main] DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@204f30ec: defining beans [org.springframework.context.annotation.internalConfigurationAnnotationProcessor,org.springframework.context.annotation.internalAutowiredAnnotationProcessor,org.springframework.context.annotation.internalRequiredAnnotationProcessor,org.springframework.context.annotation.internalCommonAnnotationProcessor,org.springframework.context.event.internalEventListenerProcessor,org.springframework.context.event.internalEventListenerFactory,carConfig,org.springframework.context.annotation.ConfigurationClassPostProcessor.importAwareProcessor,org.springframework.context.annotation.ConfigurationClassPostProcessor.enhancedConfigurationProcessor,monitor,ferrari]; root of factory hierarchy

Process finished with exit code 0

从Spring的输出发现Monitor已经被扫描到了，但是切面却没有执行，不知道是为什么