实体类转换为Map对象(支持获取实体类的父类的属性)

时间:2025-02-16 10:52:32

实体类转换为Map对象(支持获取实体类的父类的属性)

方法一:将实体类转换为Map对象

 public static Map<String, Object> EntityToMapUtil(Object obj,String   type){
        Map<String, Object> map = new HashMap<String, Object>();
        Class<?> clazz = obj.getClass();
        //获取实体类的全部字段,包括继承的父类的字段
        Field[] Fields= getAllFields(clazz);
        for(Field field : Fields){
            field.setAccessible(true);
            String fieldName = field.getName();
            Object object = null;
            try {
                object = field.get(obj);
            } catch (IllegalArgumentException | IllegalAccessException e) {
               System.out.println("**********************");
                System.out.println("实体类转换Map出错");
                System.out.println("**********************");
            }
             map.put(fieldName, object);
        }
        return map;
    }

方法二:获取实体类及其继承的父类的所有字段

  public static Field[] getAllFields(Class<?> clazz) {
        List<Field> fieldList = new ArrayList<>();
        while (clazz != null){
            fieldList.addAll(new ArrayList<>(Arrays.asList(clazz.getDeclaredFields())));
            clazz = (Class<T>) clazz.getSuperclass();
        }
        Field[] fields = new Field[fieldList.size()];
        return fieldList.toArray(fields);
    }