第五百二十九天 how can I 坚持

作者分享了拿到新电脑后的初步使用感受,安装软件的过程遇到了一些困难。

  今天去拿了新电脑,用着感觉一般,装软件确实比较费劲,好折腾啊。

  好纠结,老是把自己想的太过高尚,其实。。哎。

  好冷了。

  睡觉了。

转载于:https://www.cnblogs.com/52-it/p/5944187.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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