Spring高级教程（15）：SpringAOP（3）——使用注解配置切面（1）：方法执行前后的增强处理

       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-4.0.xsd
       http://www.springframework.org/schema/context
       http://www.springframework.org/schema/context/spring-context-4.0.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">
   
   
                                  expression="org.aspectj.lang.annotation.Aspect"/>
   
   
   

package before_package;
import org.springframework.stereotype.Component;
@Component("hello")
public class Hello {
    public void sayHello(String a, String b) {
        System.out.println(a + ", " + b);
    }
}

@Aspect
public class AuthAspect {
    @Before("execution(* before_package.*.*(..))")
    public void before() {
        System.out.println("before");
    }
}

package test_spring_aop_package;
import before_package.Hello;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class SpringTest {
    public static void main(String[] args) {
        ApplicationContext applicatiOnContext= new ClassPathXmlApplicationContext("beans.xml");
        Hello hello = applicationContext.getBean("hello", Hello.class);
        hello.sayHello("Hello", "World");
    }
}