Spring AOP 记录日志

   去年的时候由于业务量快速上升,导致我们提供的很多接口或者第三方的接口都出现性能问题,请求处理时间都特别长,为了能够快速检查出哪些接口或者业务方法响应时间特别长,PM让我们记录下每个接口或方法的处理时长。就一句MMP,要在每个方法之前之后都加上当前时间然后在相减?特么的想想都要死人了,这特么没法工作了。但是在程序员的思维里是:重复的东西我们要让程序去做,我们负责实现这个程序。

好了,废话不说。

框架:Maven+Spring

一、通过XML配置实现AOP 记录方法执行时间

   1、引入jar

     <!-- AOP JAR -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.8.9</version>
        </dependency>
        <!-- Spring JAR -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>${spring.version}</version>
        </dependency>
        <!-- 测试使用的JAR -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>${spring.version}</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.12</version>
            <!-- 表示开发的时候引入,发布的时候不会加载此包 -->
            <scope>test</scope>
        </dependency>

 

    

   2、编写通知类

package com.ssm.interf;

import
org.aopalliance.intercept.MethodInterceptor; import org.aopalliance.intercept.MethodInvocation; import org.springframework.util.StopWatch; import org.springframework.util.StringUtils; public class MethodTimeAdvice implements MethodInterceptor { @Override public Object invoke(MethodInvocation invocation) throws Throwable { StopWatch clock = new StopWatch(); clock.start(); // 计时开始 Object result = invocation.proceed(); clock.stop(); // 计时结束 // 方法参数类型,转换成简单类型 Class[] params = invocation.getMethod().getParameterTypes(); String[] simpleParams = new String[params.length]; for (int i = 0; i < params.length; i++) { simpleParams[i] = params[i].getSimpleName(); } System.out.println("Takes:" + clock.getTotalTimeMillis() + " ms [" + invocation.getThis().getClass().getName() + "." + invocation.getMethod().getName() + "(" + StringUtils.arrayToDelimitedString(simpleParams, ",") + ")]"); return result; } }

 

 StopWatch 是Spring 提供的一个计时类。

  3、spring的xml配置

<?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:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context"
    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
   http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
   http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
    <context:component-scan base-package="com.ssm" />
    <!-- 日志时间打印 -->
    <aop:config>
        <aop:pointcut id="runTimePc" expression="execution(* com.ssm.service.impl.*.*(..))" />
        <!-- Spring 2.0 可以用 AspectJ 的语法定义 Pointcut,这里拦截 service 包中的所有方法 -->
        <aop:advisor advice-ref="methodTimeAdvice" pointcut-ref="runTimePc" />
        <!--<aop:advisor id="methodTimeLog" advice-ref="methodTimeAdvice" pointcut="execution(* 
            com.tmg.perfomance.service.impl.*.*(..))"/> -->

    </aop:config>
    <!-- 默认使用JDK动态代理,对于Schema风格配置切面使用如下方式来指定使用CGLIB代理。 <aop:config proxy-target-class="true"></aop:config> -->
    <bean id="methodTimeAdvice" class="com.ssm.interf.MethodTimeAdvice" />
</beans>

 

expression="execution(* com.ssm.service.impl.*.*(..))" 代表切入点,意思是com.ssm.service.impl包下的所有方法都会被切入 时间记录
  4、测试的类
package com.ssm.service.impl;

import org.springframework.stereotype.Service;

import com.ssm.service.AopLogService;

@Service("aopLogService")
public class AopLogServiceImpl implements AopLogService {

    public void operation1() {
        System.out.println("运行方法:operation1");
        try {
            Thread.sleep(1000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

    public void operation2() {
        System.out.println("运行方法:operation2");
        try {
            Thread.sleep(2000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }

    public void operation3() {
        System.out.println("运行方法:operation3");
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }

}

 

5、junit 运行测试
 
package org.logRumTime;

import org.BaseTest;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;

import com.ssm.service.AopLogService;

public class RumTimeTest extends BaseTest {
    @Autowired
    private AopLogService aopLogService;

    @Test
    public void testOperation() {
        aopLogService.operation1();
        aopLogService.operation2();
        aopLogService.operation3();
    }

    public AopLogService getAopLogService() {
        return aopLogService;
    }

    public void setAopLogService(AopLogService aopLogService) {
        this.aopLogService = aopLogService;
    }
}
BaseTest 类代码
package org;

import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)//使用junit4进行测试
@ContextConfiguration(locations= {"classpath:app-context-core.xml"})
public class BaseTest {

}

 

运行结果:

 

 


 

posted @ 2022-05-31 17:34  薛大坑  阅读(173)  评论(0编辑  收藏  举报