基本配置使用：

1. 在 pom.xml 中增加基础类库引用

        <!-- HH: 引入 spring-boot-aop 模块 --><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-aop</artifactId></dependency>

2. 配置文件 application.yml 中增加参数配置

spring:application:name: HAVENT-SPRING-BOOT-DEMOaop:auto: true#proxy-target-class: true

3. 新增 KafkaLogAspect.java 拦截器类

package com.havent.demo.aop.aspect;import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;import java.util.Arrays;@Aspect
@Component
public class KafkaLogAspect {/*** 环绕通知：目标方法执行前后分别执行一些代码，发生异常的时候执行另外一些代码* @return*/@Around(value="execution(* com.havent.demo..*(..))")public Object aroundMethod(ProceedingJoinPoint joinPoint){long beginTime = System.currentTimeMillis();//请求的方法名String className = joinPoint.getTarget().getClass().getName();String methodName = joinPoint.getSignature().getName();String loggerType = className + "." + methodName;Object result = null;try {System.out.println("【前置通知】：the method 【" + loggerType + "】 begins with " + Arrays.asList(joinPoint.getArgs()));//执行目标方法result = joinPoint.proceed();System.out.println("【返回通知】：the method 【" + loggerType + "】 ends with " + result);} catch (Throwable e) {System.out.println("【异常通知】：the method 【" + loggerType + "】 occurs exception " + e);}// 执行时长(毫秒)long time = System.currentTimeMillis() - beginTime;System.out.println("【后置通知】：-----------------end.---------------------- time:" + time);return result;}}

注意代码中 execution(* com.havent.demo..*(..)) 表示监控范围为 com.havent.demo 下面的所有方法

调用 com.havent.demo 下面的方法，捕获日志如下：

进阶操作，监控 controller 操作，获取 web 请求信息：

package com.havent.demo.aop.aspect;import com.havent.demo.logger.service.KafkaService;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;@Aspect
@Component
public class KafkaLogAspect {@Autowiredprivate KafkaService logger;@Pointcut("execution(public * com.havent.demo.controller.*.*(..))")public void webLog(){}@Before("webLog()")public void deBefore(JoinPoint joinPoint) throws Throwable {// 接收到请求，记录请求内容ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();HttpServletRequest request = attributes.getRequest();// 记录下请求内容System.out.println("URL : " + request.getRequestURL().toString());System.out.println("HTTP_METHOD : " + request.getMethod());System.out.println("IP : " + request.getRemoteAddr());System.out.println("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());System.out.println("ARGS : " + Arrays.toString(joinPoint.getArgs()));//logger.trace("");}@AfterReturning(returning = "ret", pointcut = "webLog()")public void doAfterReturning(Object ret) throws Throwable {// 处理完请求，返回内容System.out.println("方法的返回值 : " + ret);//logger.trace("");}//后置异常通知@AfterThrowing("webLog()")public void throwss(JoinPoint jp){System.out.println("方法异常时执行.....");//logger.trace("");}//后置最终通知,final增强，不管是抛出异常或者正常退出都会执行@After("webLog()")public void after(JoinPoint jp){System.out.println("方法最后执行.....");}//环绕通知,环绕增强，相当于MethodInterceptor@Around("webLog()")public Object arround(ProceedingJoinPoint pjp) {System.out.println("方法环绕start.....");try {Object o =  pjp.proceed();System.out.println("方法环绕proceed，结果是 :" + o);return o;} catch (Throwable e) {e.printStackTrace();return null;}}}

执行结果如下：