第四百一十六天 how can I 坚持

作者分享了与技术相关人员的感悟,包括对于技术规范重要性的认识、渴望结识技术专家的心情以及对于个人技术成长的期待。此外,还提到了在北京观察到的自然美景和更换手机操作系统的体验。

  我们和好了,真服了自己,哎。

  接口要有规范要不处理起来很费劲。

  好想结识几个技术大牛,非常牛的那种,为什么我不可能成为技术大牛。努力吧。

  睡觉,今天北京有彩虹,而且是两道,晚霞也很美。

  刷机刷成了miui,感觉还挺流畅。不错,又第二天了,抓紧睡觉。

 

转载于:https://www.cnblogs.com/52-it/p/5522041.html

In Spring AOP (Aspect Oriented Programming), the `ProceedingJoinPoint` interface is a powerful tool that allows you to control method execution flow around the pointcut. The `before` advice in AOP is typically used when you want to perform some action before the target method is called. Here's an example of how you might use `before` and `proceedingJoinPoint`: ```java import org.aspectj.lang.JoinPoint; import org.aspectj.lang.annotation.Aspect; import org.aspectj.lang.annotation.Before; import org.springframework.stereotype.Component; @Aspect @Component public class LoggingAspect { @Before("execution(* com.example.service.MyService.*(..))") // Pointcut for methods in MyService public void logMethodCall(JoinPoint joinPoint) throws Throwable { // Before advice: Record the start time or log something before executing the method long startTime = System.currentTimeMillis(); System.out.println("Executing " + joinPoint.getSignature() + " ..."); // ProceedingJoinPoint is passed to access the target method ProceedingJoinPoint pjp = joinPoint.proceed(); try { // Method execution happens here pjp.proceed(); // Call the actual service method // After successful execution, record end time or log completion message long endTime = System.currentTimeMillis(); System.out.println("Completed " + joinPoint.getSignature() + " in " + (endTime - startTime) + "ms"); } catch (Exception e) { // Handle exceptions System.err.println("Error executing " + joinPoint.getSignature() + ": " + e.getMessage()); } } } ``` In this code snippet, we define an aspect that logs the start time of any method in the `MyService`. Then, using `proceedingJoinPoint`, we call the original method (`pjp.proceed()`) after logging. If an exception occurs during method execution, it is caught and handled within the `catch` block.
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