在 OSGi 包中使用 Spring AOP

Question

我正在尝试使用Spring AOP 进行日志记录。我已经设置了日志包，并在其中设置了 OSGi 服务。

我还有其他 OSGi 捆绑包，它使用来自日志记录捆绑包的服务作为 OSGi 参考。

日志包部署到Apache Karaf 并运行。我无法部署其他捆绑包。

我的bundle里面的spring配置是这样的：

<osgi:reference id="loggingIterceptor" interface="com.groupgti.commons.log.LoggingInterceptorAdvice"/>
<aop:config>
    <aop:pointcut id="logger" expression="@annotation(com.groupgti.esb.assessments.kenexa.log.InOutLogger)"/>
    <aop:advisor pointcut-ref="logger" advice-ref="loggingIterceptor"/>
</aop:config>

当我尝试启动我的捆绑包时，它给了我：

java.lang.NoClassDefFoundError: org/aspectj/weaver/reflect/ReflectionWorld$ReflectionWorldException
    at java.lang.Class.getDeclaredMethods0(Native Method)[:1.6.0_33]
    at java.lang.Class.privateGetDeclaredMethods(Class.java:2427)[:1.6.0_33]
    at java.lang.Class.getDeclaredMethods(Class.java:1791)[:1.6.0_33]
    at org.springframework.core.type.StandardAnnotationMetadata.hasAnnotatedMethods(StandardAnnotationMetadata.java:136)
    at org.springframework.context.annotation.ConfigurationClassBeanDefinitionReader.checkConfigurationClassCandidate(ConfigurationClassBeanDefinitionReader.java:318)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:175)
    at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanFactory(ConfigurationClassPostProcessor.java:161)
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.invokeBeanFactoryPostProcessors(AbstractDelegatedExecutionApplicationContext.java:479)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.invokeBeanFactoryPostProcessors(AbstractDelegatedExecutionApplicationContext.java:467)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.invokeBeanFactoryPostProcessors(AbstractDelegatedExecutionApplicationContext.java:395)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext$3.run(AbstractDelegatedExecutionApplicationContext.java:281)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.util.internal.PrivilegedUtils.executeWithCustomTCCL(PrivilegedUtils.java:85)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.startRefresh(AbstractDelegatedExecutionApplicationContext.java:247)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.stageOne(DependencyWaiterApplicationContextExecutor.java:214)[71:org.springframework.osgi.extender:1.2.1]
    at org.springframework.osgi.extender.internal.dependencies.startup.DependencyWaiterApplicationContextExecutor.refresh(DependencyWaiterApplicationContextExecutor.java:169)[71:org.springframework.osgi.extender:1.2.1]
    at org.springframework.osgi.context.support.AbstractDelegatedExecutionApplicationContext.refresh(AbstractDelegatedExecutionApplicationContext.java:175)[70:org.springframework.osgi.core:1.2.1]
    at org.springframework.osgi.extender.internal.activator.ContextLoaderListener$2.run(ContextLoaderListener.java:716)[71:org.springframework.osgi.extender:1.2.1]
    at java.lang.Thread.run(Thread.java:662)[:1.6.0_33]
Caused by: java.lang.ClassNotFoundException: org.aspectj.weaver.reflect.ReflectionWorld$ReflectionWorldException not found by org.springframework.aop [57]
    at org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:787)
    at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
    at org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)[:1.6.0_33]

我已将 maven 依赖项添加到我的 pom.xml:

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>aspectjweaver</artifactId>
    <version>1.6.2</version>
</dependency>

仍然没有解决问题。我在这里缺少什么？

Answer 1

问题是您要导入的 Maven 依赖项没有正确的 OSGI 清单。清单中缺少所有其他 OSGI 标记旁边的 Export-Package 标记。

因此，org.aspectj.weaver.reflect 包没有被导出，在 OSGI 中，这意味着该包中的类不会被其他包知道。 因此出现 ClassNotFoundException。

要解决您的问题，请将您的依赖项替换为以下内容：

<dependency>
    <groupId>org.aspectj</groupId>
    <artifactId>com.springsource.org.aspectj.weaver</artifactId>
    <version>1.6.2.RELEASE</version>
</dependency>

springsource jars 基本上是官方版本的重新打包，但带有适当的 osgi 清单。