春天 + spectj，定义一个切面@Around
我想为我的 @Entity 的方法定义一个 @Around 方面
我的所有实体都在包 data.entity 中
A 定义这样的方面：
@Aspect
public class TestAspect {
@Around("execution(* data.entity..*(..))")
public Object aroundAdvice(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("INTERCEPT: "+pjp.toLongString());
return pjp.proceed();
}
}
但永远不会被拦截...我的错误在哪里？
在 spring xml 中我有这个：
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation=
"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<context:component-scan base-package="data.dao, data.service" />
<tx:annotation-driven proxy-target-class="true"/>
<aop:aspectj-autoproxy/>
<bean id="testAspect" class="spring.TestAspect" />
... datasource and other ...
</beans>
我也尝试
@Around("target(data.entity.MyEntity)")
但
@Around("target(data.entity..)")
仍然不起作用。
谢谢。
i want to define an @Around aspect for a method of my @Entity
All my entities are in package data.entity
A define an aspect like this:
@Aspect
public class TestAspect {
@Around("execution(* data.entity..*(..))")
public Object aroundAdvice(ProceedingJoinPoint pjp) throws Throwable {
System.out.println("INTERCEPT: "+pjp.toLongString());
return pjp.proceed();
}
}
But never is intercepted... where is my error?
In spring xml i have this:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation=
"http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
<context:component-scan base-package="data.dao, data.service" />
<tx:annotation-driven proxy-target-class="true"/>
<aop:aspectj-autoproxy/>
<bean id="testAspect" class="spring.TestAspect" />
... datasource and other ...
</beans>
I try also
@Around("target(data.entity.MyEntity)")
and
@Around("target(data.entity..)")
but still not work.
Thanks.
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看起来你使用的是 spring-proxy-aop 。仅当该类是 spring manged bean，并且必须从其他对象调用建议的方法时，这才有效。
尝试使用真正的aspectJ而不是spring-proxy-aop。
It looks like you use spring-proxy-aop. This works only if the class is a spring manged bean, and the adviced method must be invoked from an other object.
Try to use real aspectJ instead of spring-proxy-aop.
我刚刚开始使用 AOP，下面是我级别的发现
我假设您有必要的 jar 文件，aspectjweaver-1.6.10.jar 和 org.springframework.aop-3.0.5.RELEASE.jar 存在于您的应用程序类路径。
您当前定义的 aroundAdvice 方法是完美的。
您可以删除下面的行并尝试吗？
I have just started using AOP and below are the findings at my level
i am assuming you have necessary jar files, aspectjweaver-1.6.10.jar and org.springframework.aop-3.0.5.RELEASE.jar present in your apps classpath.
The method aroundAdvice, as you have defined currently is perfect.
Could you remove the below line and try.
<context:component-scan base-package="data.dao, data.service" />