AOP记录日志代码

使用aop环绕增强记录日志

定义LogAnnotation注解

代码

//method代表可以放在方法上
@Target({ElementType.METHOD})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface LogAnnotation { 
    String module() default ""; 
    String operator() default ""; 
}

记录日志代码

import com.alibaba.fastjson.JSON;
import com.xpblog.utils.HttpContextUtils;
import com.xpblog.utils.IpUtils;
import lombok.extern.slf4j.Slf4j;
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.aspectj.lang.reflect.MethodSignature;
import org.springframework.stereotype.Component; 
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
@Component
@Aspect //切面 定义了通知和切点的关系
@Slf4j
public class LogAspect { 
    //需写加强的详细路径
    @Pointcut("@annotation(com.xpblog.common.aop.LogAnnotation)")
    public void pt(){} 
    //环绕通知
    @Around("pt()")
    public Object log(ProceedingJoinPoint point) throws Throwable {
        long beginTime = System.currentTimeMillis();
        //执行方法
        Object result = point.proceed();
        //执行时长(毫秒)
        long time = System.currentTimeMillis() - beginTime;
        //保存日志
        recordLog(point, time);
        return result; 
    } 
    private void recordLog(ProceedingJoinPoint joinPoint, long time) {
        MethodSignature signature = (MethodSignature) joinPoint.getSignature();
        Method method = signature.getMethod();
        LogAnnotation logAnnotation = method.getAnnotation(LogAnnotation.class);
        log.info("=====================log start================================");
        log.info("module:{}",logAnnotation.module());
        log.info("operation:{}",logAnnotation.operator()); 
        //请求的方法名
        String className = joinPoint.getTarget().getClass().getName();
        String methodName = signature.getName();
        log.info("request method:{}",className + "." + methodName + "()"); 
//        //请求的参数
        Object[] args = joinPoint.getArgs();
        String params = JSON.toJSONString(args[0]);
        log.info("params:{}",params);  
        log.info("ip:{}", IpUtils.getIpAddr());
        log.info("excute time : {} ms",time);
        log.info("=====================log end================================");
    } 
}

工具类

import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import javax.servlet.http.HttpServletRequest; 
public class HttpContextUtils {
    public static HttpServletRequest getHttpServletRequest() {
        return ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
    } 
}

port lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils; 
import javax.servlet.http.HttpServletRequest; 
/**
 * 获取Ip
 *
 */
@Slf4j
public class IpUtils { 
    /**
     * 获取IP地址
     * <p>
     * 使用Nginx等反向代理软件， 则不能通过request.getRemoteAddr()获取IP地址
     * 如果使用了多级反向代理的话，X-Forwarded-For的值并不止一个，而是一串IP地址，X-Forwarded-For中第一个非unknown的有效IP字符串，则为真实IP地址
     */
    public static String getIpAddr(HttpServletRequest request) {
        String ip = null, unknown = "unknown", seperator = ",";
        int maxLength = 15;
        try {
            ip = request.getHeader("x-forwarded-for");
            if (StringUtils.isEmpty(ip) || unknown.equalsIgnoreCase(ip)) {
                ip = request.getHeader("Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || ip.length() == 0 || unknown.equalsIgnoreCase(ip)) {
                ip = request.getHeader("WL-Proxy-Client-IP");
            }
            if (StringUtils.isEmpty(ip) || unknown.equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_CLIENT_IP");
            }
            if (StringUtils.isEmpty(ip) || unknown.equalsIgnoreCase(ip)) {
                ip = request.getHeader("HTTP_X_FORWARDED_FOR");
            }
            if (StringUtils.isEmpty(ip) || unknown.equalsIgnoreCase(ip)) {
                ip = request.getRemoteAddr();
            }
        } catch (Exception e) {
            log.error("IpUtils ERROR ", e);
        } 
        // 使用代理，则获取第一个IP地址
        if (StringUtils.isEmpty(ip) && ip.length() > maxLength) {
            int idx = ip.indexOf(seperator);
            if (idx > 0) {
                ip = ip.substring(0, idx);
            }
        } 
        return ip;
    } 
    /**
     * 获取ip地址
     *
     * @return
     */
    public static String getIpAddr() {
        //获取request 设置IP地址
        HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
        return getIpAddr(request);
    }
}