Скачать или смотреть How to Log Execution Time and Pass Arguments in Spring AOP/AspectJ

Learn how to track method execution time in a Spring Boot API while passing custom arguments from request bodies to enhance your logs.
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How to Log Execution Time and Pass Arguments in Spring AOP/AspectJ

When developing a Spring Boot API, logging the execution time of methods is a common requirement for performance monitoring and debugging. Using Spring AOP (Aspect-Oriented Programming) or AspectJ, developers can create custom annotations to track the execution time of any method easily. However, one common issue arises: how to pass arguments from method calls into these logging mechanisms. This guide will guide you through the steps to achieve this effectively.

The Problem

You have implemented a method in your Spring Boot API that logs execution time using a custom annotation, @ TrackExecutionTime. Currently, it works well for timing but lacks the ability to attach context-specific data in the logs, especially when your API is hit thousands of times a day. You want to track individual requests by logging unique information such as customer first names, last names, and other relevant data from the JSON request body.

The Solution

Accessing Method Arguments Using ProceedingJoinPoint

To accomplish this, leverage the ProceedingJoinPoint object within your aspect class. ProceedingJoinPoint provides a way to access the method arguments being passed to your annotated method through the getArgs() method. Here's how to set this up:

Define the Aspect Class

Your aspect class already looks good, but we will enhance it to extract customer data from the method arguments.

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Extract Arguments from the Method Call

Inside your aspect method, add logic to retrieve and process the method arguments using point.getArgs(). You can then cast the arguments to the relevant types and log the necessary information.

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Summary

Now you can log additional contextual information alongside your method execution time. This enhancement will help you track and trace requests more effectively. By extracting arguments from the method invocation and utilizing them in your logging, monitoring performance and identifying issues in the flow of your API becomes much easier.

Key Takeaways

Use ProceedingJoinPoint to access method arguments within your aspect advice.

Ensure to conditionally check and cast arguments to prevent runtime exceptions.

Enhance your logs with meaningful data to aid debugging and monitoring.

Implementing this approach will improve your logging capabilities significantly in a busy Spring Boot API environment, making it easier to manage and optimize your application's performance.