spring揭秘07-aop01-aop基本要素及代理模式3种实现

// 引入Spring框架相关类
import org.springframework.aop.MethodBeforeAdvice;
import org.springframework.aop.framework.ProxyFactory;
import java.lang.reflect.Method;

public class BeforeAdviceExample implements MethodBeforeAdvice {
    // 实现前置通知的逻辑
    @Override
    public void before(Method method, Object[] args, Object target) throws Throwable {
        System.out.println("Before: 执行方法 " + method.getName());
    }

    public static void main(String[] args) {
        BeforeAdviceExample advice = new BeforeAdviceExample();

        // 创建代理工厂
        ProxyFactory proxyFactory = new ProxyFactory();
        // 设置代理目标接口
        proxyFactory.setInterfaces(TargetInterface.class);
        // 添加通知
        proxyFactory.addAdvice(advice);

        // 创建代理实例
        TargetInterface proxy = (TargetInterface) proxyFactory.getProxy();

        // 通过代理实例调用目标方法
        proxy.targetMethod();
    }
}

interface TargetInterface {
    void targetMethod();
}

class Target implements TargetInterface {
    @Override
    public void targetMethod() {
        System.out.println("Target: targetMethod");
    }
}