Programmatic Creation of @AspectJ Proxies

除了使用 <aop:config> 或 <aop:aspectj-autoproxy> 在你的配置中声明方面之外，还可以以编程方式创建建议目标对象的代理。有关 Spring 的 AOP API 的详细信息，请参见 next chapter。在这里，我们要关注使用 @AspectJ 方面自动创建代理的能力。

您可以使用`org.springframework.aop.aspectj.annotation.AspectJProxyFactory`类为由一个或多个@AspectJ切面建议的目标对象创建一个代理。此类的基本用法非常简单，如下例所示：

  • Java

  • Kotlin

// create a factory that can generate a proxy for the given target object
AspectJProxyFactory factory = new AspectJProxyFactory(targetObject);

// add an aspect, the class must be an @AspectJ aspect
// you can call this as many times as you need with different aspects
factory.addAspect(SecurityManager.class);

// you can also add existing aspect instances, the type of the object supplied
// must be an @AspectJ aspect
factory.addAspect(usageTracker);

// now get the proxy object...
MyInterfaceType proxy = factory.getProxy();
// create a factory that can generate a proxy for the given target object
val factory = AspectJProxyFactory(targetObject)

// add an aspect, the class must be an @AspectJ aspect
// you can call this as many times as you need with different aspects
factory.addAspect(SecurityManager::class.java)

// you can also add existing aspect instances, the type of the object supplied
// must be an @AspectJ aspect
factory.addAspect(usageTracker)

// now get the proxy object...
val proxy = factory.getProxy<Any>()

有关详细信息，请参见https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/aop/aspectj/annotation/AspectJProxyFactory.html[javadoc]。