目录

4-1 基于注解开发Spring AOP

4-3 自由编程

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​​​​​​​4-1 基于注解开发Spring AOP

 实例

 这个训练素材基础上加入注解

设置依赖

 打开xml增加注解设置

 

 这样就不用zaixml中在进行配置了

此注解说明当前对象用于持久化

 

 

 

 因为service依赖于dao要对其进行注入

两种注入方式

会将private改为public直接对其赋值

或者采用set方法对这个属性进行设置

 userservice同上

 新增方法切面类

 

 方法同，如何配置切面类呢？

 这样ioc就会对她进行实例化和管理

 

 配置完成

创建springApplication

 睡眠三秒

调用

 

 说明aop配置已生效

4-3 自由编程

 

"1.0" encoding="UTF-8"?>
<beans 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"
       xmlns="http://www.springframework.org/schema/beans"
       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">
    
    <context:component-scan base-package="com.imooc"/>
    
    <aop:aspectj-autoproxy/>
beans>
package com.imooc.spring.aop.dao;
 
import org.springframework.stereotype.Repository;
 
/**
 * 书店表dao
 */
@Repository
public class BookShop {
    public void sellingBooks(){
        System.out.println("卖出一本java基础书籍");
    }
}
package com.imooc.spring.aop.aspect;
 
import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.springframework.stereotype.Component;
 
@Component
@Aspect
public class MethodPro {
    @Before("execution(* com.imooc..*.*(..))")
    public void preSales(){
        System.out.println("=========售前服务=========");
    }
 
    @After(("execution(* com.imooc..*.*(..))"))
    public void afterSale(){
        System.out.println("=========售后服务==========");
    }
 
}
package com.imooc.spring.aop;
 
import com.imooc.spring.aop.dao.BookShop;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
 
public class SpringApplication {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");
        
        BookShop bookShop = context.getBean("bookShop", BookShop.class);
        bookShop.sellingBooks();
    }
}