关于aspectj:使用切片注解-打印日志

• 注解类

package com.two.elements.annontation;

import java.lang.annotation.*;

/**
 * 查看参数
 *
 * @author
 * @version 1.0
 * @date 2019-03-03 02:14:00
 */
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Inherited
public @interface CheckParameter {

    /**
     * 接口名称
     */
    String apiName() default "";}

代码

package com.two.elements.annontation;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.two.elements.util.IpUtil;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.util.StopWatch;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Objects;

/**
 * @author
 * @version 2019-02-01
 */
@Aspect
@Component
public class CheckParameterAspect {private static final Logger logger = LoggerFactory.getLogger(CheckParameterAspect.class);

    @Around("@annotation(checkParameter)")
    public Object checkParameter(ProceedingJoinPoint joinPoint, CheckParameter checkParameter) throws Throwable {StopWatch watch = new StopWatch();
        watch.start();

        HttpServletRequest request = ((ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes())).getRequest();

        String apiName = checkParameter.apiName();

        String method = request.getMethod();
        String url = request.getRequestURL().toString();
        String ip = IpUtil.getIpAddr(request);
        String userAgent = request.getHeader("User-Agent");

        String params = "";
        try {params = new ObjectMapper().writeValueAsString(joinPoint.getArgs()[0]);
        } catch (Exception ex) {ex.printStackTrace();
        }

        logger.info("\n------{}------\nURL：{}\nMethod：{}\nIP：{}\nParams：{}\nUser-Agent：{}\n-------------------- 分割线 --------------------",
                apiName, url, method, ip, params, userAgent);

        Object result = joinPoint.proceed();
        watch.stop();

        logger.info("返回数据：{}", result);
        logger.info("{} 耗时：{} 毫秒", apiName, watch.getTotalTimeMillis());

        return result;
    }

}

切片类
org.aspectj.lang.annotation.Around
org.aspectj.lang.annotation.Aspect

• 调用

@CheckParameter(apiName = “xxx”)
@RequestMapping…