• 1.日誌切面註解定義

@Target(ElementType.METHOD) //註解放置的目標位置,METHOD是可註解在方法級別上
@Retention(RetentionPolicy.RUNTIME)  //註解在哪個階段執行
@Documented
public @interface SysLog {
    String value() default "";
}

• 2.日誌切面類

@Aspect
@Component
@Slf4j
public class AspectLog {

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

    @Pointcut("@annotation(com.jysp.core.annotation.SysLog)")
    public void logPointCut() {
    }

    @Before(value = "logPointCut()")
    public void methodBefore(JoinPoint joinPoint) {
        //開始時間
        startTime.set(System.currentTimeMillis());
        ServletRequestAttributes requestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = requestAttributes.getRequest();
        //列印請求內容
        log.info("===============請求內容===============");
        log.info("請求地址:" + request.getRequestURL().toString());
        log.info("請求方式:" + request.getMethod());
        log.info("請求類方法:" + joinPoint.getSignature());
        String args = joinPoint.getArgs() != null ? Arrays.toString(joinPoint.getArgs()) : "";
        log.info("請求類方法引數:" + args);
        log.info("=======================================");
    }

    @AfterReturning(returning = "o", pointcut = "logPointCut()")
    public void methodAfterReturning(Object o) {
        //列印返回內容
        log.info("--------------返回內容----------------");
        String responseContent = o != null ? JSON.toJSONString(o) : "";
        log.info("Response內容:" + responseContent);
        //列印響應時間
        log.info("--------------響應時間----------------");
        log.info("請求處理時間為:" + (System.currentTimeMillis() - startTime.get()) + "毫秒");
        log.info("=======================================");
    }
}

• 3.介面方法上增加註解

　　@SysLog
　　@PostMapping("/test")
　　public ResponseBean<String> test(@RequestBody Test dto) {
　　}