springboot的切面aop

　　在springboot项目中使用的切面aop，打印各个请求的请求参数和相应参数。

注意：post请求和get请求获取参数的方式不同。request.getQueryString();使用与get请求

import com.fasterxml.jackson.databind.ObjectMapper;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Configuration;
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;
import java.util.Map;

//描述切面类
@Aspect
@Configuration
@Component
public class HttpControllerAop {

    private static final Logger logger = LoggerFactory.getLogger(HttpControllerAop.class);

    /**
     *  定义切点Pointcut
     */
    @Pointcut("execution(* com.hfy..*HttpController.*(..))")
    public void excudeService() {
    }

    @Around("excudeService()")
    public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
        ObjectMapper mapper = new ObjectMapper();

        RequestAttributes ra = RequestContextHolder.getRequestAttributes();
        ServletRequestAttributes sra = (ServletRequestAttributes) ra;
        HttpServletRequest request = sra.getRequest();

        String uri = request.getRequestURI();
        String queryString = request.getQueryString();
        Map<String, String[]> params = request.getParameterMap();
        if (params != null) {
            queryString = mapper.writeValueAsString(params);
        }
        String method = request.getMethod();
        if ("POST".equals(method)) {
            Object[] paramsArray = pjp.getArgs();
            if (paramsArray.length > 0) {
                queryString = mapper.writeValueAsString(paramsArray[0]);
            }
        } else {
            queryString = request.getQueryString();
        }
        logger.info("请求uri: ({}), params: {}", uri, queryString);

        // result的值就是被拦截方法的返回值
        Object result = pjp.proceed();

        // 过滤 高频或数据量大的日志，不打印
        return result;
    }

}