Is it possible to make a bean spring aware?
It sounds like exactly what you’re after. The downside is that your bean becomes Spring-aware, but in most applications that’s not so bad. You could deploy a custom BeanPostProcessor in your application context to do it.
How to call a method in spring bean?
You don’t need to remember to add the init-method attribute to your spring bean definition, spring will automatically call the method (assuming you register the annotation-config option somewhere else in the context, anyway). Thanks, this works.
When to call the init method in spring?
This will call the “init” method when the bean is instantiated. To expand on the @PostConstruct suggestion in other answers, this really is the best solution, in my opinion.
Why is the spring bean not yet initialized?
Here, we’re trying to access an autowired field in the constructor. When the constructor is called, the Spring bean is not yet fully initialized. This is problematic because calling not yet initialized fields will of course result in NullPointerExceptions. Spring gives us a few ways of managing this situation.
Can you run logic on startup in spring?
Running Logic on Startup Running logic during/after Spring application’s startup is a common scenario, but one that causes multiple problems.
What happens when the constructor is called in spring?
When the constructor is called, the Spring bean is not yet fully initialized. This is problematic because calling not yet initialized fields will of course result in NullPointerExceptions. Spring gives us a few ways of managing this situation. 2.1. The @PostConstruct Annotation
What is the run method in Spring Boot?
Similar to CommandLineRunner, Spring boot also provides an ApplicationRunner interface with a run() method to be invoked at application startup. However, instead of raw String arguments passed to the callback method, we have an instance of the ApplicationArguments class.
