Spring Boot: How to Handle Bean Creation Exceptions in @PostConstruct Method Gracefully?
I recently switched to Hey everyone, I'm running into an issue that's driving me crazy. I'm using Spring Boot 2.6.3 and I've encountered a situation where an exception is thrown during the execution of a method annotated with @PostConstruct in one of my configuration classes. The goal of this method is to initialize some resources, but if there's an scenario (like a connectivity question to an external service), I want to handle that gracefully without crashing the entire application. Here's the code snippet of my @PostConstruct method: ```java @Component public class MyInitializer { @PostConstruct public void init() { try { // Simulating a connection to an external service connectToExternalService(); } catch (ExternalServiceException e) { // Log the behavior but do not throw it System.err.println("Failed to connect to external service: " + e.getMessage()); // Is there a way to set a flag to prevent further execution? } } private void connectToExternalService() throws ExternalServiceException { // Simulate an behavior throw new ExternalServiceException("Connection timed out"); } } ``` I've tried wrapping the logic in a try-catch block as shown, but it seems that if an exception is thrown during the initialization phase, the application context fails to start completely. I would like to know if there's a recommended approach to handle such exceptions in a way that allows the application to start successfully, maybe by using a conditional bean or some other pattern? Is there a best practice for handling such scenarios in Spring Boot? Any advice would be greatly appreciated! This is part of a larger CLI tool I'm building. I'd really appreciate any guidance on this. I'm working in a Windows 11 environment. What would be the recommended way to handle this?