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【spring】aop切面通知，日志处理

技术 2022年11月15日
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1.spring的切面编程

概念原理可以看这里：http://blog.csdn.net/moreevan/article/details/11977115

2.所需要的jar包

maven引入jar包(aspectj+aopalliance+cglib+spring):另外还有log日志jar包

<properties>
      <spring.version>4.1.6.RELEASE</spring.version>
      <aspectj.version>1.8.4</aspectj.version>
      <aopalliance.version>1.0</aopalliance.version>
      <cglib.version>3.1</cglib.version>
  </properties>  <dependencies>
      <!--Spring 系列-->
      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context-support</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-beans</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-expression</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aspects</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aop</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-orm</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-tx</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-web</artifactId>
          <version>${spring.version}</version>
      </dependency>      <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>${spring.version}</version>
      </dependency>
    <dependency>      <!--log4j 2-->
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-api</artifactId>
          <version>2.4.1</version>
      </dependency>
      <dependency>
          <groupId>org.apache.logging.log4j</groupId>
          <artifactId>log4j-core</artifactId>
          <version>2.4.1</version>
      </dependency>      <!--aspect,织入库，Spring依赖-->
      <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjweaver</artifactId>
          <version>${aspectj.version}</version>
      </dependency>      <!--aspect库，Spring依赖-->
      <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjrt</artifactId>
          <version>${aspectj.version}</version>
      </dependency>      <!-- aop联盟定义的一组关于AOP的公共接口,Spring Aop依赖它 -->
      <dependency>
          <groupId>aopalliance</groupId>
          <artifactId>aopalliance</artifactId>
          <version>${aopalliance.version}</version>
      </dependency>      <!--Cglib代理，Spring依赖-->
      <dependency>
          <groupId>cglib</groupId>
          <artifactId>cglib</artifactId>
          <version>${cglib.version}</version>
      </dependency>
  </dependencies>

3.自己写的hello World（不知道这里写的@Before前置通知并没有运行，还请懂得指点一下）

编写一个切面bean用于管理切面（基于注解）  HelloWorldAspact ：

package com.raipeng.work.spring.aspact;import org.apache.logging.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;/**
 * Created by 111 on 2015/11/21.
 */
@Aspect
@Component
public class HelloWorldAspact {    //使用的是log4j2
    private Logger logger = org.apache.logging.log4j.LogManager.getLogger(HelloWorldAspact.class);    @Pointcut("execution(* com.raipeng.work.spring.model.HelloWorldServiceImp.*(..))")
    private void anyMethod(){
    }    @Before("anyMethod()")
    public void Advice(JoinPoint joinPoint){
        System.out.println("this is before Advice");
    }    @Around("anyMethod()")
    public void aroundAdvice(ProceedingJoinPoint joinPoint){
        System.out.println("this is around Advice");
        logger.info("the method  {}.{}() run", joinPoint.getTarget().getClass().getSimpleName(), joinPoint.getSignature().getName());
    }    @After("anyMethod()")
    public void afterAdvice(){
        System.out.println("this is after Advice");
    }    @AfterReturning("anyMethod()")
    public void afterReturningAdvice(){
        System.out.println("this is afterReturning Advice");
    }
}

在spring的配置文件中配置如下（必须加上<aop:aspectj-autoproxy/>）：

<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns="http://www.springframework.org/schema/beans"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:p="http://www.springframework.org/schema/p"
       xmlns:util="http://www.springframework.org/schema/util"
       xmlns:aop="http://www.springframework.org/schema/aop"
       xmlns:task="http://www.springframework.org/schema/task"
       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/util http://www.springframework.org/schema/util/spring-util-4.1.xsd
            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
            http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.1.xsd">    <aop:aspectj-autoproxy/>
    <context:component-scan base-package="com.raipeng.work.spring.aspact"/>
    <bean id="helloWorld" class="com.raipeng.work.spring.model.HelloWorldServiceImp">
    </bean>    <!--<bean id="helloWorldAspact" class="com.raipeng.work.spring.aspact.HelloWorldAspact"></bean>--扫描包加入了@Component就不需>
</beans>

需要aop监控的类的接口  HelloWorldService

package com.raipeng.work.spring.model;/**
 * Created by 111 on 2015/11/21.
 */
public interface HelloWorldService {
    void hello(String name);
}

上面接口的实现类  HelloWorldServiceImp：

package com.raipeng.work.spring.model;/**
 * Created by 111 on 2015/10/26.
 */
public class HelloWorldServiceImp implements HelloWorldService {    @Override
    public void hello(String name){
        System.out.println(name+",hello！");
    }}

测试方法如下：

package com.raipeng.work.spring.test;import com.raipeng.work.spring.model.HelloWorldService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;/**
 * Created by 111 on 2015/11/19.
 */
public class MainTest {
    public static void main(String[]args){
        ApplicationContext applicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        HelloWorldService helloWorld = (HelloWorldService)applicationContext.getBean("helloWorld");
        helloWorld.hello("xl");
    }
}

控制台信息：

"D:\Program Files\Java\jdk1.7.0_13\bin\java" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:60621,suspend=y,server=n -Dfile.encoding=UTF-8 -classpath "D:\Program Files\Java\jdk1.7.0_13\jre\lib\charsets.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\deploy.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\javaws.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\jce.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\jfr.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\jfxrt.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\jsse.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\management-agent.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\plugin.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\resources.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\rt.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\access-bridge-64.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\dnsns.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\jaccess.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\localedata.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\sunec.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\sunjce_provider.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\sunmscapi.jar;D:\Program Files\Java\jdk1.7.0_13\jre\lib\ext\zipfs.jar;D:\cxlwork\STSworkspace\work-test\target\classes;D:\app\repository\org\springframework\spring-core\4.1.6.RELEASE\spring-core-4.1.6.RELEASE.jar;D:\app\repository\commons-logging\commons-logging\1.2\commons-logging-1.2.jar;D:\app\repository\org\springframework\spring-context\4.1.6.RELEASE\spring-context-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-context-support\4.1.6.RELEASE\spring-context-support-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-beans\4.1.6.RELEASE\spring-beans-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-expression\4.1.6.RELEASE\spring-expression-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-aspects\4.1.6.RELEASE\spring-aspects-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-aop\4.1.6.RELEASE\spring-aop-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-jdbc\4.1.6.RELEASE\spring-jdbc-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-orm\4.1.6.RELEASE\spring-orm-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-tx\4.1.6.RELEASE\spring-tx-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-web\4.1.6.RELEASE\spring-web-4.1.6.RELEASE.jar;D:\app\repository\org\springframework\spring-webmvc\4.1.6.RELEASE\spring-webmvc-4.1.6.RELEASE.jar;D:\app\repository\mysql\mysql-connector-java\5.1.9\mysql-connector-java-5.1.9.jar;D:\app\repository\org\apache\logging\log4j\log4j-api\2.4.1\log4j-api-2.4.1.jar;D:\app\repository\org\apache\logging\log4j\log4j-core\2.4.1\log4j-core-2.4.1.jar;D:\app\repository\org\aspectj\aspectjweaver\1.8.4\aspectjweaver-1.8.4.jar;D:\app\repository\org\aspectj\aspectjrt\1.8.4\aspectjrt-1.8.4.jar;D:\app\repository\aopalliance\aopalliance\1.0\aopalliance-1.0.jar;D:\app\repository\cglib\cglib\3.1\cglib-3.1.jar;D:\app\repository\org\ow2\asm\asm\4.2\asm-4.2.jar;D:\Program Files (x86)\JetBrains\IntelliJ IDEA 14.0.3\lib\idea_rt.jar" com.raipeng.work.spring.test.MainTest
Connected to the target VM, address: '127.0.0.1:60621', transport: 'socket'
十一月 21, 2015 3:02:45 下午 org.springframework.context.support.ClassPathXmlApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@648ee94b: startup date [Sat Nov 21 15:02:45 CST 2015]; root of context hierarchy
十一月 21, 2015 3:02:45 下午 org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from class path resource [applicationContext.xml]
this is around Advice
2015-11-21 15:02:47.479 INFO [main][HelloWorldAspact.java:33] - the method  HelloWorldServiceImp.hello() run
this is after Advice
this is afterReturning Advice
Disconnected from the target VM, address: '127.0.0.1:60621', transport: 'socket'Process finished with exit code 0
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  • [ 技术 ] python开发_常用的python模块及安装方法
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