Spring Aspects：指定要编织的包

Question

我有一个 Spring / Hibernate 应用程序。 Hibernate 创建的自定义类型需要 Spring 上下文，所以我使用 Spring Aspects 来提供。

@Configurable(preConstruction = true)
public class EncryptedStringUserType implements EnhancedUserType {
...

@EnableSpringConfigured
@EnableLoadTimeWeaving
public class RootConfiguration {
...

添加 Spring Security 后，我在 stderr 中收到如下消息：

[AppClassLoader@14dad5dc] error can't determine implemented interfaces of missing type org.springframework.security.ldap.authentication.LdapAuthenticationProvider
when weaving type org.springframework.security.config.annotation.authentication.configurers.ldap.LdapAuthenticationProviderConfigurer
when weaving classes 
when weaving 
 [Xlint:cantFindType]

是否可以指定应该编织的类的包并避免尝试编织其他类？

解决方案

将 META-INF/aop.xml 放到资源根目录下，排除不必要的包：

<!DOCTYPE aspectj PUBLIC "-//AspectJ//DTD//EN" "http://www.eclipse.org/aspectj/dtd/aspectj.dtd">
<aspectj>
    <weaver>
        <exclude within="org.springframework.security.config.annotation.authentication.configurers.ldap.*"/>
        <exclude within="org.springframework.security.config.annotation.web.configurers.openid.*"/>
    </weaver>
</aspectj>

Answer 1

您可以通过在类路径中的META-INF/aop.xml 文件中添加<include within="your.package.here.*"/> 标记来限制编织范围。下面是来自Spring documentation 的META-INF/aop.xml 的完整示例：

<!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="foo.*"/>
    </weaver>

    <aspects>
        <!-- weave in just this aspect -->
        <aspect name="foo.ProfilingAspect"/>
    </aspects>

</aspectj>