AspectJ LTW（编织）不适用于 Spring Boot

Question

我在 Spring Boot 2.1.2.RELEASE - Java 11 - Fat JAR

根据文档，我有：

将所需的依赖项添加到 Gradle 构建

implementation 'org.springframework.boot:spring-boot-starter-aop'
implementation 'org.aspectj:aspectjrt:1.9.2'
implementation 'org.aspectj:aspectjweaver:1.9.2'

启用LoadTimeWeaving

@SpringBootApplication
@EnableLoadTimeWeaving
public class MyApplication { ... }

提供 aop.xml 在 META-INF

下

<!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="my.base.package.*" />
    </weaver>

    <aspects>
        <!-- weave in just this aspect -->
        <aspect name="my.base.package.spring.aop.MyAspects" />
    </aspects>
</aspectj>

创建了新的 @Aspect class

@Aspect
public class MyAspects {
    @Around("methodsToBeProfiled()")
    public Object profile(final ProceedingJoinPoint pjp) throws Throwable {
        final var sw = new StopWatch(getClass().getSimpleName());
        try {
            sw.start(pjp.getSignature().getName());
            return pjp.proceed();
        } finally {
            sw.stop();
            System.out.println(sw.prettyPrint());
        }
    }

    @Pointcut("execution(* my.base.package.other.MyClass.*(..))")
    public void methodsToBeProfiled() {}
}

添加了用于检测的 Jar

-javaagent:/home/myuser/spring-instrument-5.1.5.RELEASE.jar

日志，如您所见，显示 MyAspects 已被识别

[AppClassLoader@2c13da15] info AspectJ Weaver Version 1.9.2 built on Wednesday Oct 24, 2018 at 15:43:33 GMT
[AppClassLoader@2c13da15] info register classloader jdk.internal.loader.ClassLoaders$AppClassLoader@2c13da15
[AppClassLoader@2c13da15] info using configuration /home/edoardo/IdeaProjects/scheduler/scheduler-engine/out/production/resources/META-INF/aop.xml
[AppClassLoader@2c13da15] info using configuration file:/home/edoardo/.gradle/caches/modules-2/files-2.1/org.springframework/spring-aspects/5.1.5.RELEASE/3bb95e05b646ef93e2a4cf0b600924c2979fc723/spring-aspects-5.1.5.RELEASE.jar!/META-INF/aop.xml
[AppClassLoader@2c13da15] info register aspect my.base.package.spring.aop.MyAspects
[AppClassLoader@2c13da15] info register aspect org.springframework.beans.factory.aspectj.AnnotationBeanConfigurerAspect
[AppClassLoader@2c13da15] info register aspect org.springframework.scheduling.aspectj.AnnotationAsyncExecutionAspect
[AppClassLoader@2c13da15] info register aspect org.springframework.transaction.aspectj.AnnotationTransactionAspect
[AppClassLoader@2c13da15] info register aspect org.springframework.transaction.aspectj.JtaAnnotationTransactionAspect
[AppClassLoader@2c13da15] info deactivating aspect 'org.springframework.transaction.aspectj.JtaAnnotationTransactionAspect' as it requires type 'javax.transaction.Transactional' which cannot be found on the classpath
[AppClassLoader@2c13da15] info register aspect org.springframework.cache.aspectj.AnnotationCacheAspect
[AppClassLoader@2c13da15] info register aspect org.springframework.cache.aspectj.JCacheCacheAspect
[AppClassLoader@2c13da15] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'org.springframework.cache.jcache.interceptor.JCacheAspectSupport' which cannot be found on the classpath
[AppClassLoader@2c13da15] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'javax.cache.annotation.CacheResult' which cannot be found on the classpath
[AppClassLoader@2c13da15] warning javax.* types are not being woven because the weaver option '-Xset:weaveJavaxPackages=true' has not been specified

但是 MyAspects 从未实例化（因此没有调试），并且方法没有与我的方面代码编织在一起。

我是不是漏掉了什么？

编辑：似乎需要 Jars，aspectjweaver 和 spring-instrument 作为代理。这正常吗？

Answer 1

您确实需要 aspectjweaver 代理 jar。你不需要 spring-instrument（对于一个胖罐子 - AFAIK 它被用于应用程序服务器来解决他们的 class 加载器的一些历史问题）。您也不需要 @EnableLoadTimeWeaving（也是应用程序服务器功能，如果您控制代理则多余）。另外（小问题）aspectjrt 是 aspectjweaver 的传递依赖，因此您不需要两者。所以你看起来好像在工作，即使你做了比你需要的更多的工作。示例 Spring 使用各种编织选项启动应用程序：here。

AspectJ LTW（编织）不适用于 Spring Boot

AspectJ LTW (weaving) not working with Spring Boot

spring

aspectj

spring-boot