修改别人写的利用AOP实现日志监控的问题

时间：2022-04-23 22:20:16

原文链接

http://blog.csdn.net/jaune161/article/details/51476138

想法

看到原文博主写的这篇文章，我感觉写的很好，可以在我们的项目中使用AOP来监控用户的操作，后台管理员根据AOP记录的内容来实现统计功能，进行绩效考核

流程

Created with Raphaël 2.1.0开始编写User实体类编写业务逻辑接口类编写业务逻辑实现类编写AOP业务逻辑类编写而junit测试类

AOP应用参考文章

  1. http://www.cnblogs.com/wayfarer/articles/241024.html
  2. http://blog.csdn.net/moreevan/article/details/11977115/
  3. http://www.infoq.com/cn/articles/Orchestration-Oleg-Zhurakousky/

下面的内容主要是修复原博主文章中的不足的地方

User类

package com.springinaction.springidol;

public class User {

    private String username;

    private String password;

    public User() {

        super();

    }

    public User(String username, String password) {

        super();

        this.username = username;

        this.password = password;

    }

    public String getUsername() {

        return username;

    }

    public String getPassword() {

        return password;

    }

}

UserService 接口类

package com.springinaction.springidol;

//接口

public interface UserService {

    public void login(User user) throws AuthenticationException;

}

UserServiceImp （实现类）

package com.springinaction.springidol;

//实现类

public class UserServiceImpl implements UserService {

    public void login(User user) throws AuthenticationException {

        if("admin".equals(user.getUsername()) && "admin".equals(user.getPassword())){

            System.out.println("登录成功");

        }else{

            throw new AuthenticationException("用户名密码错误!");

        }

    }

}

织入点声明

这个类是实现登陆监控的主要业务逻辑实现.

1. 该类声明了一个切点loginPointcut， 使用aspect的语法来声明一个织入点

2. Around等注解的使用，请参考其他文章

package com.springinaction.springidol;

import org.aspectj.lang.ProceedingJoinPoint;

import org.aspectj.lang.annotation.Around;

import org.aspectj.lang.annotation.Aspect;

import org.aspectj.lang.annotation.Pointcut;

@Aspect

public class LoginMonitor {

    @Pointcut("execution(* com.springinaction.springidol.UserService.login(..))")

    public void loginPointcut(){};

    @Around("loginPointcut()")

    public Object afterLogin(ProceedingJoinPoint point) throws Throwable{

        User user = (User) point.getArgs()[0];

        System.out.println(user.getUsername()+"请求登录系统");

        Object obj ;

        try {

            obj = point.proceed();

        } catch (Throwable e) {

            System.out.println(user.getUsername()+"登录失败！"+e.getMessage());

            throw e;

        }

        System.out.println(user.getUsername()+"已登录系统");

        return obj;

    }

}

Spring的配置文件

<?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: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">

    <context:annotation-config></context:annotation-config>

    <bean id="userService" class="com.springinaction.springidol.UserServiceImpl"/>

    <bean class="com.springinaction.springidol.LoginMonitor"/>

    <aop:aspectj-autoproxy/> <!-- 支持@Aspect注解 -->

</beans>

Junit测试类

package com.springinaction.springidol;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.test.context.ContextConfiguration;

import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

/**

 * Created by shugen on 16-6-2.

 */

@RunWith(SpringJUnit4ClassRunner.class)

@ContextConfiguration("spring-idol.xml")

public class TestCLass {

    @Autowired

    private UserService userService;

    @Test

    public void testLogin() throws AuthenticationException {

        User user = new User("admin","admin");

        userService.login(user);

    }

}

POM.xml(这里使用maven进行项目管理)

<?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>

  <groupId>com.example</groupId>

  <artifactId>rmb</artifactId>

  <version>0.0.1-SNAPSHOT</version>

    <dependencies>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>3.1.1.RELEASE</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-test</artifactId>

            <version>3.1.1.RELEASE</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>junit</groupId>

            <artifactId>junit</artifactId>

            <version>4.12</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-beans</artifactId>

            <version>3.1.1.RELEASE</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjrt</artifactId>

            <version>1.6.2</version>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjrt</artifactId>

            <version>1.6.2</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-aop</artifactId>

            <version>3.1.1.RELEASE</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-beans</artifactId>

            <version>3.1.1.RELEASE</version>

        </dependency>

        <dependency>

            <groupId>commons-logging</groupId>

            <artifactId>commons-logging</artifactId>

            <version>1.1.1</version>

        </dependency>

        <dependency>

            <groupId>org.springframework</groupId>

            <artifactId>spring-context</artifactId>

            <version>3.1.1.RELEASE</version>

            <scope>test</scope>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjweaver</artifactId>

            <version>1.8.2</version>

        </dependency>

        <dependency>

            <groupId>org.aspectj</groupId>

            <artifactId>aspectjrt</artifactId>

            <version>1.8.2</version>

        </dependency>

        <dependency>

            <groupId>aopalliance</groupId>

            <artifactId>aopalliance</artifactId>

            <version>1.0</version>

        </dependency>

        <dependency>

            <groupId>asm</groupId>

            <artifactId>asm</artifactId>

            <version>3.2</version>

        </dependency>

        <dependency>

            <groupId>asm</groupId>

            <artifactId>asm-commons</artifactId>

            <version>3.2</version>

        </dependency>

        <dependency>

            <groupId>asm</groupId>

            <artifactId>asm-util</artifactId>

            <version>3.2</version>

        </dependency>

    </dependencies>

    <packaging>war</packaging>

  <build>

    <finalName>Vue</finalName>

  </build>

</project>

注意问题

如果使用了1.6.2 的aspectjweaver和aspectjrt可能会导致一下错误

Caused by: java.lang.IllegalArgumentException: error at ::0 can't find referenced pointcut loginPointcut

详细错误信息

Caused by: java.lang.IllegalArgumentException: error at ::0 can't find referenced pointcut loginPointcut

    at org.aspectj.weaver.tools.PointcutParser.parsePointcutExpression(PointcutParser.java:317)

    at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:207)

    at org.springframework.aop.aspectj.AspectJExpressionPointcut.buildPointcutExpression(AspectJExpressionPointcut.java:193)

    at org.springframework.aop.aspectj.AspectJExpressionPointcut.checkReadyToMatch(AspectJExpressionPointcut.java:182)

    at org.springframework.aop.aspectj.AspectJExpressionPointcut.getClassFilter(AspectJExpressionPointcut.java:163)

    at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:209)

    at org.springframework.aop.support.AopUtils.canApply(AopUtils.java:263)

    at org.springframework.aop.support.AopUtils.findAdvisorsThatCanApply(AopUtils.java:295)

    at org.springframework.aop.framework.autoproxy.AbstractAdvisorAutoProxyCreator.findAdvisorsThatCanApply

解决办法,使用高版本的aspectjweaver和aspectjrt

<dependency>

 <groupId>org.aspectj</groupId>

   <artifactId>aspectjweaver</artifactId>

   <version>1.8.2</version>

</dependency>

<dependency>

   <groupId>org.aspectj</groupId>

   <artifactId>aspectjrt</artifactId>

   <version>1.8.2</version>

</dependency>

程序运行验证

修改别人写的利用AOP实现日志监控的问题

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