第三百七十七天 how can I 坚持

博主分享了自己近期的一些烦恼和困扰,包括犹豫不决导致的心烦意乱、不知所措的状态以及身体不适等问题。

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  老是犹豫不决,这可如何是好。心烦意乱。

  不知该写点啥。乱了心神。

  睡觉吧。真不知道写啥。幼稚。舌头还没好利索,疼死了。

转载于:https://www.cnblogs.com/52-it/p/5393551.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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