Not try catch a runtime exception will be the following code capture
import org.springframework.web.bind.annotation.*; import java.util.HashMap; import java.util.Map; @ControllerAdvice public class EEcontroller { @ExceptionHandler(RuntimeException.class) @ResponseBody public Map<String,String> errorInfo(){ Map<String,String> map=new HashMap<>(); map.put("code","500"); return map; } }