Spring Boot Custom Exception Handling

[meruva surendra]

Hi JavaLovers,

I am trying to display customized error message in the response in spring boot rest . But it's not showing message in the response and handleAllException method is also  not being called at all. Can you please some help me.

Thank in Advance

ProductController.java

@RestController
public class ProductController {

   @RequestMapping(value = "/say/{hello}",method = RequestMethod.GET)
   public void sayHello(@PathVariable String hello) throws ProductNotFoundException {
       if(hello.contains("a")){
           throw new ProductNotFoundException();
       }else{
           System.out.println("Hello..."+hello);
       }
   }
}

ProductExceptionHandler.java

@ControllerAdvice
public class ProductExceptionHandler {

    @ExceptionHandler({ProductNotFoundException.class})
   public ResponseEntity<Object> handleAllExceptions(ProductNotFoundException ex)  {
    return new ResponseEntity<>("Hello Exception", HttpStatus.NOT_FOUND);
   }
}

ProductNotFoundException.java

@ResponseStatus(HttpStatus.NOT_FOUND)
public class ProductNotFoundException extends Exception{
   private static final long serialVersionUID = 1L;

   public ProductNotFoundException() {

   }
}

[Himai Minh]

Try to modify into this:

@ControllerAdvice
 
public class ProductExceptionHandler   {

    @ExceptionHandler({ProductNotFoundException.class})
   public ResponseEntity<Object> handleAllExceptions(ProductNotFoundException ex, final Model model)  {
      model.addAttribute("error", "Hello Exception");
    return new ResponseEntity<>("Hello Exception", HttpStatus.NOT_FOUND);
   }


} 

[Himai Minh]

Maybe, you can commit your code to Github and let us see....