SpringBoot实现Aop切面日志

1、导入aop依赖 (springboot已经默认开启了aop,只用导入相关依赖即可)

 <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-aop</artifactId>
</dependency>

2、编写切面类

import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.*;
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;

/**
 * aop 日志
 */
@Aspect
@Component
@Slf4j
public class LogAspect {
    /**
     * 两个..代表所有子目录，最后括号里的两个..代表所有参数
     * cn.yan 换成自己的包路径
     */
    @Pointcut("execution(* cn.yan..controller.*.*(..))")
    public void logPointCut() {
    }

    /**
     * 执行前操作
     * @param joinPoint
     */
    @Before("logPointCut()")
    public void doBefore(JoinPoint joinPoint){
        // 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
        log.info("请求地址 : " + request.getRequestURL().toString());
        log.info("HTTP METHOD : " + request.getMethod());
        log.info("CLASS_METHOD : " + joinPoint.getSignature().getDeclaringTypeName() + "."
                + joinPoint.getSignature().getName());
        log.info("参数 : " + Arrays.toString(joinPoint.getArgs()));
    }

    /**
     * 执行后打印日志
     * returning的值和doAfterReturning的参数名一致
     * @param ret
     */
    @AfterReturning(returning = "ret", pointcut = "logPointCut()")
    public void doAfterReturning(Object ret) {
        // 处理完请求，返回内容(返回值太复杂时，打印的是物理存储空间的地址)
        log.info("返回值 : " + ret);
    }

    /**
     * 环绕通知做打印耗时
     * 也可以把上面的2个合到这里来
     * @param pjp
     * @return
     * @throws Throwable
     */
    @Around("logPointCut()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        long startTime = System.currentTimeMillis();
        // ob 为方法的返回值
        Object ob = pjp.proceed();
        log.info("耗时 : " + (System.currentTimeMillis() - startTime));
        return ob;
    }
}

3、测试,新建controller,并访问

    @PostMapping(value = "/testAspect",produces = "application/json;charset=UTF-8")
    public User testAspect(@RequestBody User user){
        return user;
    }

4、日志打印结果如下

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