# 5.9程序创建@AspectJ代理

除了使用\<aop:config>或\<aop:aspectj-autoproxy>在配置中声明方面之外，还可以通过编程方式创建通知目标对象的代理。有关Spring的AOP API的完整详细信息，请参阅下一章。在这里，我们将重点介绍使用@Aspectj特性自动创建代理的能力。

可以使用org.springframework.aop.aspectj.annotation.AspectJProxyFactory类为一个或多个@Aspectj方面建议的目标对象创建代理。这个类的基本用法非常简单，如下示例所示：

```
// 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();
```


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