spring aop的最简单的例子

下面先写一个简单的spring aop例子

package com.eroadsf.springdemo.aop;

import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;

@Aspect
public class AspectJTest {
    @Pointcut("execution(* *.say(..))")
    public void say(){

    }

    @Before("say()")
    public void beforeSay(){
        System.out.println("beforeSay");
    }

    @After("say()")
    public void afterSay(){
        System.out.println("afterSay");
    }

}

package com.eroadsf.springdemo;

import java.util.Date;

public class ServiceA {

    private Date date;


    private String name;

//  private ServiceB serviceB;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

//  public ServiceB getServiceB() {
//      return serviceB;
//  }
//
//  public void setServiceB(ServiceB serviceB) {
//      this.serviceB = serviceB;
//  }

    public Date getDate() {
        return date;
    }

    public void setDate(Date date) {
        this.date = date;
    }

    public void say(){
        System.out.println("输出:"+this.name);
    }


}

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    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/aop
      http://www.springframework.org/schema/aop/spring-aop-4.0.xsd">

    <bean id="serviceA" class="com.eroadsf.springdemo.ServiceA" scope="singleton">
        <property name="name" value="何"></property>
    </bean>
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>
    <bean class="com.eroadsf.springdemo.aop.AspectJTest"></bean>
</beans>

package com.eroadsf.springdemo;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
/**
 * 测试类
 * @author hepei
 * @date 2017年9月24日 下午11:37:43
 */
public class Test {
    @SuppressWarnings("deprecation")
    public static void main(String[] args) {
        ApplicationContext ctx=new ClassPathXmlApplicationContext("spring-context.xml");
        ServiceA serviceA=(ServiceA) ctx.getBean("serviceA");
        serviceA.say();
    }

}

最后的打印结果:

beforeSay
输出:何
afterSay