springboot-WebLogAspect用于记录请求和响应日志的实现方法

package xxx.xxx.xxx;

import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestAttributes;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 * 用于记录web请求/响应日志
 */
@Component
@Aspect
@Slf4j
public class WebLogAspect {
    /**
     * 切面, xxx.xxx.xxx.web.ctl是Controller包名
     */
    @Pointcut("execution(* xxx.xxx.xxx.web.ctl..*.*(..))")
    private void parameterPointCut() {
    }

    /**
     * 方法执行前，记录请求
     * @param joinPoint
     */
    @Before("parameterPointCut()")
    public void requestLog(JoinPoint joinPoint){
        RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();//这个RequestContextHolder是Springmvc提供来获得请求的东西
        HttpServletRequest request = ((ServletRequestAttributes)requestAttributes).getRequest();
        String queryStr = request.getQueryString();
        if(StringUtils.isNotEmpty(queryStr)){
            log.info("请求地址: [{}] {}",  request.getMethod(), request.getRequestURI());
        }else{
            log.info("请求地址: [{}] {}?{} ", request.getMethod(), request.getRequestURI(), queryStr);
        }

        printRequestArgs(joinPoint);
    }

    private void printRequestArgs(JoinPoint joinPoint){
        log.info("请求方法: {}", joinPoint.toString());

        Object[] reqArgs = joinPoint.getArgs();
        if(null == reqArgs){
            return;
        }

        int c = 0;
        ObjectMapper mapper = new ObjectMapper();
        for(Object arg: reqArgs){
            try{
                log.info("请求入参[{}]: {}", c, mapper.writeValueAsString(arg));
            }catch (Exception ex){
                log.error("请求入参转换异常", ex);
            }
            c++;
        }
    }

    /**
     * 方法执行后,记录响应
     * @param joinPoint
     * @param ret 方法执行结果注入对象
     * @return
     */
    @AfterReturning(returning = "ret",pointcut = "parameterPointCut()")
    public Object responeLog(JoinPoint joinPoint, Object ret){
        try {
            ObjectMapper mapper = new ObjectMapper();
            log.info("响应出参: {}", mapper.writeValueAsString(ret));
        } catch (Throwable ex) {
            log.error("响应异常", ex);
        }
        return ret;
    }
}