Spring 基于AspectJ的AOP

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原创最新推荐文章于 2026-06-20 13:28:45 发布 243 阅读 AI 写同款· GEO 优化 ›

比较Spring AOP和AspectJ 它与我现有的或新的应用程序兼容吗？在哪里可以实施AOP？它与我的应用程序集成的速度有多快？性能开销是多少？在本文中，我们将着眼于回答这些问题，并介绍Spring AOP和AspectJ（这两种最流行的Java AOP框架）。下表概述了Spring AOP和AspectJ之间的主要区别：Spring AOPAspectJImplemented in pure Java-- 用纯Java实现。阅读详情

Spring基于AspectJ的AOP

execution表达式

execution(<访问修饰符>?<返回类型><方法名>(<参数>)<异常>)

匹配所有类的public方法：execution(public * * (..))
匹配指定包下面所有类的方法（不包含子包）：execution(* com.zhangxin9727.*(..))
匹配指定包下面所有类的方法（包含子包）：execution(* com.zhangxin9727..*(..))
匹配到指定类所有方法：execution(* com.zhangxin9727.Demo.*(..))
匹配实现特定接口所有类方法：execution(* com.zhangxin9727.Demo+.*(..))
匹配所有demo开头的方法：execution(* demo*(..))

五种常用通知类型

通知类型	说明
before	前置通知
after-returning	后置通知
around	环绕通知
after-throwing	异常通知
after	最终通知

简单案例

目录结构

aspectJDemo
- src
- - main
- - - java
- - - - com.zhangxin9727
- - - - - annotation
- - - - - - AnnotationAspect.java
- - - - - - UserDao1.java
- - - - - xml
- - - - - - UserDao2.java
- - - - - - UserDao2Imp.java
- - - - - - XMLAspect.java
- - - resources
- - - - applicationContext1.xml
- - - - applicationContext2.xml
- - test
- - - java
- - - - MyTest1.java
- - - - MyTest2.java
- pom.xml

主要文件

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>11</maven.compiler.source>
        <maven.compiler.target>11</maven.compiler.target>
    </properties>

    <groupId>com.zhangxin9727</groupId>
    <artifactId>aspectJDemo</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>5.1.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>5.1.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>5.1.5.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter-api</artifactId>
            <version>5.4.0</version>
        </dependency>
        <dependency>
            <groupId>javax.annotation</groupId>
            <artifactId>javax.annotation-api</artifactId>
            <version>1.3.2</version>
        </dependency>
    </dependencies>
</project>

UserDao1.java

package com.zhangxin9727.annotation;

import org.springframework.stereotype.Component;

@Component("userDao1")
public class UserDao1 {
    public void save() {
        System.out.println("增加···");
    }

    public String delete() {
        System.out.println("删除···");
        return "删除成功";
    }

    public void update() {
        System.out.println("修改···");
    }

    public void find() {
        System.out.println("查询单个···");
    }

    public void findAll() {
        System.out.println("查询所有···");
    }
}

AnnotationAspect.java

package com.zhangxin9727.annotation;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;

@Aspect
@Component
public class AnnotationAspect {
    //定义切点
    @Pointcut(value = "execution(* com.zhangxin9727.annotation.UserDao1.save())")
    private void pointcut() {
    }

    @Before(value = "pointcut()")
    public void before(JoinPoint joinPoint) {
        System.out.println("===前置通知===" + joinPoint);
    }

    @AfterReturning(value = "execution(* com.zhangxin9727.annotation.UserDao1.delete())", returning = "result")
    public void afterReturning(Object result) {
        System.out.println("===后置通知===" + result);
    }

    @Around(value = "execution(* com.zhangxin9727.annotation.UserDao1.update())")
    public Object around(ProceedingJoinPoint joinPoint) {
        System.out.println("===环绕前通知===");
        Object obj = null;//执行目标方法
        try {
            obj = joinPoint.proceed();
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        System.out.println("===环绕后通知===");
        return obj;
    }

    @AfterThrowing(value = "execution(* com.zhangxin9727.annotation.UserDao1.find())", throwing = "e")
    public void afterThrowing(Throwable e) {
        System.out.println("===异常抛出通知===" + e.getMessage());
    }

    @After(value = "execution(* com.zhangxin9727.annotation.UserDao1.findAll())")
    public void after() {
        System.out.println("===最终通知===");
    }
}

applocationContext1.xml

<?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"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
    <!--开启AspectJ自动代理-->
    <aop:aspectj-autoproxy/>
    <context:component-scan base-package="com.zhangxin9727.annotation"/>
</beans>

MyTest1.java

import com.zhangxin9727.annotation.UserDao1;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;

import javax.annotation.Resource;

@ExtendWith(SpringExtension.class)
@ContextConfiguration("classpath:applicationContext1.xml")
public class MyTest1 {
    @Resource(name = "userDao1")
    private UserDao1 userDao;

    @Test
    public void test() {
        userDao.save();
        userDao.delete();
        userDao.update();
        userDao.find();
        userDao.findAll();
    }
}

UserDao2.java

package com.zhangxin9727.xml;

public interface UserDao2 {
    void save();

    String delete();

    void update();

    void find();

    void findAll();
}

UserDao2Imp.java

package com.zhangxin9727.xml;

public class UserDao2Impl implements UserDao2 {
    @Override
    public void save() {
        System.out.println("增加···");
    }

    @Override
    public String delete() {
        System.out.println("删除···");
        return "删除成功";
    }

    @Override
    public void update() {
        System.out.println("修改···");
    }

    @Override
    public void find() {
        System.out.println("查询单个···");
    }

    @Override
    public void findAll() {
        System.out.println("查询所有···");
    }
}

XMLAspect.java

package com.zhangxin9727.xml;

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;

public class XMLAspect {
    //前置通知
    public void before(JoinPoint joinPoint) {
        System.out.println("===前置通知===" + joinPoint);
    }

    //后置通知
    public void afterReturning(Object result) {
        System.out.println("===后置通知===" + result);
    }

    //环绕通知
    public Object around(ProceedingJoinPoint joinPoint) {
        System.out.println("===环绕前通知===");
        Object obj = null;
        try {
            obj = joinPoint.proceed();
        } catch (Throwable throwable) {
            throwable.printStackTrace();
        }
        System.out.println("===环绕后通知===");
        return obj;
    }

    //异常通知
    public void afterThrowing(Throwable e) {
        System.out.println("异常抛出通知" + e.getMessage());
    }

    //最终通知
    public void after() {
        System.out.println("最终通知");
    }
}

applicationContext2.xml

<?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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    <!--配置目标类-->
    <bean class="com.zhangxin9727.xml.UserDao2Impl" id="userDao2"/>
    <!--配置切面类-->
    <bean class="com.zhangxin9727.xml.XMLAspect" id="xmlAspect"/>
    <!--aop的相关配置-->
    <aop:config>
        <!--配置切入点-->
        <aop:pointcut id="ponitcut" expression="execution(* com.zhangxin9727.xml.UserDao2.save())"/>
        <!--配置AOP的切面-->
        <aop:aspect ref="xmlAspect">
            <aop:before method="before" pointcut-ref="ponitcut"/>
            <aop:after-returning method="afterReturning" pointcut="execution(* com.zhangxin9727.xml.UserDao2.delete())"
                                 returning="result"/>
            <aop:around method="around" pointcut="execution(* com.zhangxin9727.xml.UserDao2.update())"/>
            <aop:after-throwing method="afterThrowing" pointcut="execution(* com.zhangxin9727.xml.UserDao2.find())"
                                throwing="e"/>
            <aop:after method="after" pointcut="execution(* com.zhangxin9727.xml.UserDao2.findAll())"/>
        </aop:aspect>
    </aop:config>
</beans>

MyTest2.java

import com.zhangxin9727.xml.UserDao2;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit.jupiter.SpringExtension;

import javax.annotation.Resource;

@ExtendWith(SpringExtension.class)
@ContextConfiguration("classpath:applicationContext2.xml")
public class MyTest2 {
    @Resource(name = "userDao2")
    private UserDao2 userDao;

    @Test
    public void test() {
        userDao.save();
        userDao.delete();
        userDao.update();
        userDao.find();
        userDao.findAll();
    }
}