功能是對訪問controller的使用者進行列印輸出其資訊及操作

          記錄請求的url、請求了哪個介面controller、請求的地址ip等

          以及記錄請求的引數等資訊

import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.*;
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 HttpAspect
{
    private final static Logger logger = LoggerFactory.getLogger(HttpAspect.class);

    ThreadLocal<Long> startTime = new ThreadLocal<Long>();

    /*
     * 定義一個切入點
     */
    @Pointcut("execution(public * com.dcsoft.controller.*.*(..))")
    public void log()
    {

    }

    /*
     * 通過連線點切入
     */
    @Before("log()")
    public void doBefore(JoinPoint joinPoint)
    {
        // 接收到請求，記錄請求內容

        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();


        // 記錄下請求內容

        logger.info("url={}", request.getRequestURL());

        logger.info("method={}", request.getMethod());

        logger.info("ip={}", request.getRemoteAddr());

        logger.info("class_method={}", joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());

        logger.info("args={}", joinPoint.getArgs());


        //獲取所有引數方法
        Enumeration<String> enu = request.getParameterNames();
        while (enu.hasMoreElements()) {

            String paraName = enu.nextElement();

            System.out.println(paraName + ": " + request.getParameter(paraName));

        }
    }

    @After("log()")
    public void doAfter()
    {
        logger.info("結束");
    }

    @AfterReturning(returning = "object", pointcut = "log()")
    public void doAfterReturning(Object object)
    {
        if (null == object) {
            logger.info("response={}", "空");
        } else {
            logger.info("response={}", object.toString());
        }

        logger.info("WebLogAspect.doAfterReturning()");

        //logger.info("請求耗時（毫秒） : " + (System.currentTimeMillis() - startTime.get()));

    }
}