如何为ProxyFactoryBean设置许多目标? [英] how to set many targets to ProxyFactoryBean?

问题描述

我正在使用Spring 4 AOP，现在，我将ProxyFactoryBean配置如下:

I am working with Spring 4 AOP and right now, i have my ProxyFactoryBean configured like this:

@Bean
@Primary
public ProxyFactoryBean proxyFactoryBean() {
    ProxyFactoryBean proxyFactoryBean = new ProxyFactoryBean();
    proxyFactoryBean.setTarget(new ClientService());
    proxyFactoryBean.addAdvice(new LoggingAdvice());
    proxyFactoryBean.addAdvice(new DebugInterceptor());
    return proxyFactoryBean;
}

这有效，但是目标只是ClientService对象.

This works, but the target is just the ClientService object.

是否可以设置许多目标，而不仅仅是一个?如果可能的话，我想将这些建议设置在整个程序包中.否则，设置具体目标，但不仅要设置一个.你怎么能做到这一点 ?预先感谢

Is it possible to set many targets and not just one ? I want to set those advices to an entire package, if it is possible. Otherwise, set specifics targets, but again, not just one. How could you do that ? Thanks in advance

推荐答案

使用Spring的 AbstractAutoProxyCreator子类化这样我就可以用Java代码表示切入点.

Proxying all beans in an application context that match certain criteria is easiest done with Spring's AutoProxy-Facility. Alas, the pointcut api is somewhat cumbersome to use in java based config; I usually subclass the AbstractAutoProxyCreator so I can express the pointcut in java code.

例如，我会做类似的事情:

For instance, I'd do something like:

@Bean
AbstractAutoProxyCreator autoProxyCreator() {
    return new AbstractAutoProxyCreator() {
        @Override 
        protected Object[] getAdvicesAndAdvisorsForBean(Class<?> beanClass, String beanName, TargetSource customTargetSource) {
            if (BusinessService.class.isAssignableFrom(beanClass)) {
                return new Object[] {loggingAdvice()};
            } else {
                return DO_NOT_PROXY;
            }
        }
    };
}

@Bean
LoggingAdvice loggingAdvice() {
    return new LoggingAdvice();
}

@Bean
public PersonService personService() {
    return new PersonService();
}

此代码未经测试，因为我手头没有带有Spring(或Maven)的IDE，但是要旨应该可以.

This code is untested, as I don't have an IDE with Spring (or Maven) at hand, but the gist should work.

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