Spring_aop_xml配置文件方式_AspectJ

目录结构

1.Book,java

public class Book {
    public void buy(){
        System.out.println("buy.......");
    }
}

2.aop:BookProxy.java

@Aspect
public class BookProxy {
    @Pointcut("execution(* com.atguigu.spring5.aopxml.*.*(..))")
    public void pointCut(){}
    @Before("pointCut()")
    public void before(){
        System.out.println("before........");
    }
}

bean2.xml

       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
                        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">

    
    

    
        
        
        
        
            
        
    

1.在容器中注册两个组件
2.配置aop
1.切入点 2.切面
切入点为需要增强的方法
切面为增强的方向,是前方还是后方还是环绕还是异常还是返回

test

    @Test
    public void test2(){
        ApplicationContext context = new ClassPathXmlApplicationContext("bean2.xml");
        Book book = context.getBean( Book.class);
        book.buy();
    }

结果为在开始增强。