@ExceptionHandler

@ExceptionHandler is an annotation in Spring Framework that is used to handle exceptions in Spring MVC based web applications. It is used to define a method that will be invoked when a specific type of exception is thrown during the execution of a controller method. The @ExceptionHandler annotation is used to map the method to the exception type it will handle. When an exception is thrown, Spring Framework will search for the appropriate @ExceptionHandler method and invoke it to handle the exception. The @ExceptionHandler method can then perform any necessary actions, such as logging the error, displaying an error message, or redirecting the user to another page.