ErrorHandling #spring-web-mvc

ErrorHandling.java

@ExceptionHandler(Exception.class)
public ResponseEntity<String> handleError(HttpServletRequest req, Exception ex) {
    if (ex.getCause() instanceof SocketTimeoutException) {
        return ResponseEntity.status(HttpStatus.GATEWAY_TIMEOUT).body(HttpStatus.GATEWAY_TIMEOUT.getReasonPhrase());
    }
    return ResponseEntity.status(HttpStatus.INTERNAL_SERVER_ERROR).body(HttpStatus.INTERNAL_SERVER_ERROR.getReasonPhrase());
}