SpringBoot中使用AOP切面机制，统一处理日志

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
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.Enumeration;

@Aspect
@Component
public class WebLogConfig {

    //获取日志信息类
    private static final Logger logger = LoggerFactory.getLogger(WebLogConfig.class);

    @Pointcut("execution(* com.abc.controller.*.*(..))")
    public void weblog(){}

    @Before(value = "weblog()")
    public void doBefore(JoinPoint joinPoint){
        //获取请求request
        ServletRequestAttributes attributes = (ServletRequestAttributes)
                RequestContextHolder.getRequestAttributes();

            //通过servletRequestAttributes获取request
            HttpServletRequest request = attributes.getRequest();
            //获取请求的相应参数
            StringBuffer url = request.getRequestURL();
            //写入请求的url
            logger.info("URL: " + url.toString());
            String method = request.getMethod();
            //写入请求的方法
            logger.info("REQUEST_METHOD: " + method);
            Enumeration<String> params = request.getParameterNames();
            //遍历请求参数
            while(params.hasMoreElements()){
                String name = params.nextElement();
                logger.info("name{},params{}: " + name,request.getParameter(name));
            }
            //获取请求的ip地址
            String ip = request.getRemoteAddr();
            //写入请求的ip地址
            logger.info("IP: " + ip);

    }

    @AfterReturning(pointcut = "weblog()",returning = "ret")
    public void afterRet(Object ret){
        //处理完请求响应内容
        logger.info("RESPONSE: " + ret);
    }
}