Java编程—Spring AOP本质(6)

/**
* 业务组件：BeanOne
*/
public class BeanOne {
    public void foo() {
        System.out.println("BeanOne的foo()被调用!");
    }    
    public void bar() {
        System.out.println("BeanOne的bar()被调用!");
    }
}

/**
* 业务组件：BeanTwo
*/
public class BeanTwo {
    public void foo() {
        System.out.println("BeanTwo的foo()被调用!");
    }    
    public void bar() {
        System.out.println("BeanTwo的bar()被调用!");
    }
}

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

/**
* 自定义通知：Advice
*/
public class SimpleAdvice implements MethodInterceptor {
    public Object invoke(MethodInvocation invocation) throws Throwable {
        System.out.println(">> 业务方法调用前动作，被代理调用目标方法是： " + invocation.getMethod().getName());
        Object retVal = invocation.proceed();
        System.out.println(">> 业务方法调用结束后动作！");
        return retVal;
    }
}

import java.lang.reflect.Method;
import org.springframework.aop.ClassFilter;
import org.springframework.aop.support.StaticMethodMatcherPointcut;

/**
* 自定义静态切入点：Pointcut
*/
public class SimpleStaticPointcut extends StaticMethodMatcherPointcut {

    public boolean matches(Method method, Class cls) {
        //类方法名为foo时候匹配
        System.out.println("切入点方法匹配,正在匹配"+cls.getName()+"的"+method.getName()+"方法!");
        return ("foo".equals(method.getName()));
    }

    public ClassFilter getClassFilter() {
        return new ClassFilter() {
            public boolean matches(Class cls) {
                System.out.println("切入点类匹配,正在匹配"+cls.getName()+"类!");
                //BeanOne类匹配
                return (cls == BeanOne.class);
            }
        };
    }
}