实现Web层的日志切面(方便清晰查看日志)

 

 import org.aspectj.lang.JoinPoint;
 import org.aspectj.lang.Signature;
 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.aspectj.lang.reflect.MethodSignature;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.core.annotation.Order;
 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.io.UnsupportedEncodingException;
 import java.net.URLDecoder;

 /**
  * 实现Web层的日志切面
  * @author lpf
  */
 @Component
 @Aspect
 @Order(1)
 public class WebLogAspect {
     private Logger log = LoggerFactory.getLogger(getClass());
     private ThreadLocal<Long> startTime = new ThreadLocal<>();

     /**
      * 定义一个切入点.
      * 解释下：
      * <p>
      * ~ 第一个 * 代表任意修饰符及任意返回值.
      * ~ 第二个 * 任意包名
      * ~ 第三个 * 定义在web包或者子包
      * ~ 第四个 * 任意方法
      * ~ .. 匹配任意数量的参数.
      */
     // @Pointcut("execution(public * com.kfit.*.web..*.*(..))")
     // use
     // @Pointcut("execution(public * org.zhilan..*Controller.*(..))")

     // @Pointcut("(execution(public * org.zhilan.timer.*Service.*(..)))")
     @Pointcut("(execution(public * com.haoyun..*Controller.*(..))) "
             // + "|| execution(public * com.haoyun.timer.*Service.*(..)) "
             + "&& !execution(* com.haoyun.login.LoginController.getSystemState())"
     )
     public void webLog() {
     }

     @Before("webLog()")
     public void doBefore(JoinPoint joinPoint) throws UnsupportedEncodingException {
         startTime.set(System.currentTimeMillis());

         // 接收到请求，记录请求内容
         log.info("========================= before start =========================");
         Signature signature = joinPoint.getSignature();
         MethodSignature methodSignature = (MethodSignature) signature;

         log.info("CLASS_METHOD : " + methodSignature.getDeclaringTypeName() + "." + methodSignature.getName());

         // 记录下请求内容
         ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
         if(attributes != null){
             HttpServletRequest request = attributes.getRequest();
             log.info("IP : " + request.getRemoteAddr());
         }

         log.info("请求参数:    名称     值");
         String[] argsNameArray  = methodSignature.getParameterNames();
         Object[] argsValueArray = joinPoint.getArgs();
         for (int i = 0; i < argsNameArray.length; i++) {
             log.info("args_name: " + argsNameArray[i]);

             String argValue = argsValueArray[i] != null ? argsValueArray[i].toString() : "";
             if (argsNameArray[i].contains("encode")) {
                 String str = URLDecoder.decode(argValue, "utf-8");
                 log.info("args_value: " + (str.length() > 200 ? str.substring(0, 200) + "..." : str));
             } else {
                 log.info("args_value: " + (argValue.length() > 200 ? argValue.substring(0, 200) + "..." : argValue));
             }
         }

         log.info("========================= before end =========================");
     }

     @AfterReturning(returning="rvt", pointcut="webLog()")
     public void doAfterReturning(JoinPoint joinPoint, Object rvt) {
         // 处理完请求, 返回内容
         log.info("========================= after returning start =========================");
         Signature signature = joinPoint.getSignature();
         log.info("CLASS_METHOD : " + signature.getDeclaringTypeName() + "." + signature.getName());

         if(rvt != null){
             String str = rvt.toString();
             if (str.length() > 200) {
                 str = str.substring(0, 200) + "...";
             }

             log.info("return 返回值:");
             log.info(str);
         }

         log.info("耗时（毫秒） : " + (System.currentTimeMillis() - startTime.get()));

         log.info("========================= after returning end =========================");
     }
 }