5

不知道出了什么问题,但 AOP 似乎在我的 spring boot (v1.1.6) 设置中不起作用。

@Configuration
@ComponentScan
@EnableJpaRepositories
@EnableTransactionManagement
@EnableAutoConfiguration
@EnableCaching
@EnableLoadTimeWeaving
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

在方面类

@Aspect
public class MyAspect {
  @AfterReturning(pointcut = "execution(private * com.myapp.service.MyService.test(..)) && args(str1,str2)", argNames = "str1,str2")
    public void advice(String str1, String str2) throws IOException {
        System.out.println("Advising after returning");
    }
}

在需要建议的服务类中

@Service
public class MyService {
  public void test(String str1, String str2) throws IOException {
    System.out.println("Test method in service");
    //rest of the implementation
  }
}

我也有这样的 META-INF/aop.xml

<!DOCTYPE aspectj PUBLIC "-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj/dtd/aspectj.dtd">
<aspectj>
    <weaver>
        <!-- only weave classes in our application-specific packages -->
        <include within="com.myapp.*"/>
    </weaver>

    <aspects>
        <!-- weave in just this aspect -->
        <aspect name="com.myapp.aspect.MyAspect"/>
    </aspects>

</aspectj>

当我使用 -javaagent:path/to/spring-instrument-4.1.0.RELEASE.jar 运行应用程序时

我在控制台上收到此消息

2014-09-05 08:42:12.500  INFO 65053 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
[AppClassLoader@58644d46] warning javax.* types are not being woven because the weaver option '-Xset:weaveJavaxPackages=true' has not been specified
2014-09-05 08:42:13.114  INFO 65053 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2014-09-05 08:42:13.156  INFO 65053 --- [           main] o.s.b.a.e.jmx.EndpointMBeanExporter      : Registering beans for JMX exposure on startup
[AppClassLoader@58644d46] error can't determine implemented interfaces of missing type org.springframework.security.config.http.SessionCreationPolicy
when weaving type org.springframework.boot.actuate.autoconfigure.ManagementServerProperties$Security
when weaving classes 
when weaving 
 [Xlint:cantFindType]
[AppClassLoader@58644d46] error can't determine implemented interfaces of missing type org.springframework.security.config.http.SessionCreationPolicy
when weaving type org.springframework.boot.actuate.autoconfigure.ManagementServerProperties$Security
when weaving classes 
when weaving 
 [Xlint:cantFindType]

但是,建议没有任何反应。它不会着火。

难道我做错了什么?

4

3 回答 3

1

为了建议私有方法,您需要使用特权方面:

public privileged aspect MyAspect {
    // ...
}

但是AspectJ 文档说:

限制:注释样式不支持特权方面。

所以请使用本机语法,而不是@AspectJ 风格。但是,在您这样做之前,请测试非特权、注释样式的方面是否与公共方法按预期工作,以便排除您的方面被编织的其他原因。

于 2014-09-08T09:15:09.440 回答
1

将以下更改添加到您的代码中,它应该可以工作。不需要创建 aop.xml。这些更改会将方面添加到容器并编织它。

阅读——启用 Spring AOP 或 AspectJ

@Configuration
@ComponentScan
@EnableJpaRepositories
@EnableTransactionManagement
@EnableAutoConfiguration
@EnableCaching
@EnableAspectJAutoProxy -- Use this instead of @EnableLoadTimeWeaving

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

@Aspect
 @Component/@Configurable -- Both of them work
 public class MyAspect {
     ...
 }
于 2018-10-04T21:45:28.793 回答
1

我有同样的问题。在我的例子中,我必须用注解 @Component 来注解我的切面类。

 @Aspect
 @Component
 public class MyAspect {
     ...
 }

以下链接有一个对我有帮助的 spring boot AOP 示例

https://github.com/spring-projects/spring-boot/tree/master/spring-boot-samples/spring-boot-sample-aop

于 2016-03-08T08:37:24.597 回答