Hello, I am trying to implement a global exception...

# server

[khan husnain]

Hello,
I am trying to implement a global exception handler in spring boot kotlin, here is my code

import org.springframework.http.HttpStatus
import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.ControllerAdvice
import org.springframework.web.bind.annotation.ExceptionHandler
import org.springframework.web.servlet.mvc.method.annotation.ResponseEntityExceptionHandler



@ControllerAdvice
class GlobalExceptionHandler {

    @ExceptionHandler(Exception::class)
    fun handleGenericException(ex: Exception): ResponseEntity<Any> {
        val errorMessage = "An unexpected error occurred: ${ex.message}"
        return ResponseEntity(errorMessage, HttpStatus.INTERNAL_SERVER_ERROR)
    }

    @ExceptionHandler(value = [ArithmeticException::class])
    fun handleArithmeticException(ex: ArithmeticException): ResponseEntity<Any> {
        val errorMessage = "An arithmetic error occurred: ${ex.message}"
        return ResponseEntity(errorMessage, HttpStatus.INTERNAL_SERVER_ERROR)
    }

    @ExceptionHandler(RuntimeException::class)
    fun handleRuntimeException(exception: RuntimeException): ResponseEntity<Any> {
        return ResponseEntity
            .status(HttpStatus.INTERNAL_SERVER_ERROR)
            .body("abc bab")
    }

}

Issue I am facing right now is that when i throw an exception in my controller, it is not invoking the GlobalExceptionHandler, here is the controller code.

package com.example.balancesservice


import org.apache.http.HttpStatus
import org.springframework.http.HttpStatusCode
import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.GetMapping
import org.springframework.web.bind.annotation.RestController
import org.springframework.web.server.ResponseStatusException

@RestController
class HealthController {

    @GetMapping("/health")
    fun healthCheck(): String {
            throw Exception("Div by zero not all")

    }
}

Can anyone please guide?

[Higor Oliveira]

Hey man, how are you doing ?

I can be wrong but I think all the exceptions caught by the global exception handler should be an inheritance from RuntimeException.

[khan husnain]

i am using @RestController throughout my app so changing the bean from @ControllerAdvice to @RestControllerAdvice solved the issue.

[Higor Oliveira]

Nice