(入門SpringBoot)SpringBoot加接口操做日誌好方法(九)

用Spring的切面去作，慕課網上的大神的小妙招,被我拷貝下來了。
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;

/**
 *  做用實現攔截http請求.
 */
@Aspect
@Component //把這個文件引入到Spring容器裏面去.
public class HttpAspect {
    @Pointcut("execution(public * com.account.demo.controller.*.*(..))")
    public void log(){

    }
    /**
     * 攔截那些方法.請求前.
     * JoinPoint 獲取類方法和類名對象.
     */
    @Before("log()")
    public void logBefore(JoinPoint joinPoint){
        System.out.println("攔截了getInfo方法");
        //url,method,ip,類方法,參數.
        //SpringBoot經過RequestContextHolder獲取HttpRequest和HttpResponse
        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        //javax.servlet.http.HttpServletRequest
        HttpServletRequest request = attributes.getRequest();
        System.out.println("url"+request.getRequestURL());
        System.out.println("method"+request.getMethod());
        System.out.println("ip"+request.getRemoteAddr());
        //類方法.
        System.out.println("類方法"+joinPoint.getSignature().getDeclaringTypeName()
                +"."+ joinPoint.getSignature().getName()
        );
        //參數:
        System.out.println("類方法"+joinPoint.getArgs());
    }
    /**
     * 攔截那些方法.請求後.
     */
    @After("log()")
    public void logAfter(){
        System.out.println("攔截了getInfo方法.以後");
    }

    /**
     * 返回參數.
     * @param object 入參
     */
    @AfterReturning(returning = "object",pointcut = "log()")
    public void doAfterReturning(Object object){
        System.out.println(object);
    }
}