# 5.9. @AspectJ 代理的程序化创建

除了使用`<aop:config>` 或`<aop:aspectj-autoproxy>`声明配置中的切面之外，还可以以编程方式创建通知目标对象的代理。有关 Spring AOP API 的完整详细信息，请参阅 [下一章](https://docs.spring.io/spring-framework/docs/current/reference/html/core.html#aop-api)。在这里，我们希望专注于使用@AspectJ 切面自动创建代理的能力。

您可以使用`org.springframework.aop.aspectj.annotation.AspectJProxyFactory`该类为一个或多个@AspectJ 切面通知的目标对象创建代理。这个类的基本用法很简单，如下例所示：

```java
// 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();
```

有关更多信息，请参阅[javadoc](https://docs.spring.io/spring-framework/docs/5.3.22/javadoc-api/org/springframework/aop/aspectj/annotation/AspectJProxyFactory.html)。


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