bean to map

public Map<String, String> dtoToMap(EppCommonDto dto) throws ClassNotFoundException {
        Class clazz = Class.forName(dto.getClass().getName());
        // Get all properties of the entity class
        Field[] fields = clazz.getFields();
        Map<String, String> map = new HashMap<>();
        // Traverse dto, get attribute values ​​one by one, splicing parameters
        for (Field fl : fields) {
            Object value = invokeGetMethod(dto, fl.getName());
            if (null == value) {
                map.put(fl.getName(), "");
            } else {
                map.put(fl.getName(), value.toString());
            }
        }
        return map;
    }

private Object invokeGetMethod(Object clazz, String fieldName) {
        String methodName = fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
        Method method = null;
        try {
            method = Class.forName(clazz.getClass().getName()).getMethod("get" + methodName);
            return method.invoke(clazz);
        } catch (Exception e) {
            LOGGER.error("invokeGetMethod class mapping failed",e);
            return "";
        }
    }

  

 

Only the fields in the conditional dto will be put into the map.