任意对象转化为字典

import java.io.Serializable;

public class SelectModel  implements Serializable {

    private static final long serialVersionUID = 1L;

    private Integer value;

    private String label;

    private String isValid;

    public Integer getValue() {
        return value;
    }

    public void setValue(Integer value) {
        this.value = value;
    }

    public String getLabel() {
        return label;
    }

    public void setLabel(String label) {
        this.label = label;
    }

    public String getIsValid() {
        return isValid;
    }

    public void setIsValid(String isValid) {
        this.isValid = isValid;
    }
}

protected SelectModel toSelectModel(Object obj, String valueName, String labelName, String... fields) {
        SelectModel selectModel = new SelectModel();
        Class<?> tClass = obj.getClass();
        try {
            Method methodV = tClass.getMethod("get" + StringUtils.capitalize(valueName), null);
            Object value = methodV.invoke(obj, null);
            selectModel.setValue((Integer) Optional.ofNullable(value).orElse(0));

            Method methodL = tClass.getMethod("get" + StringUtils.capitalize(labelName), null);
            Object label = methodL.invoke(obj, null);
            selectModel.setLabel(Optional.ofNullable(label).orElse("").toString());

            if (fields != null && fields.length > 0) {
                BeanWrapper srcWrap = PropertyAccessorFactory.forBeanPropertyAccess(obj);
                BeanWrapper trgWrap = PropertyAccessorFactory.forBeanPropertyAccess(selectModel);

                Arrays.stream(fields).forEach(f -> trgWrap.setPropertyValue(f, srcWrap.getPropertyValue(f)));
            }
            return selectModel;
        } catch (Exception e) {
            logger.error(e.getMessage(), e);
            logger.error("系统异常", e);
        }
        return selectModel;
    }

protected List<SelectModel> toSelectModelList(List data, String valueName, String labelName, String... fields) {
        if (data != null) {
            List<SelectModel> list = new ArrayList<>();
            for (Object obj : data) {
                list.add(toSelectModel(obj, valueName, labelName, fields));
            }
            return list;
        }
        return null;
    }

List<SelectModel> list = toSelectModelList(pageListModel.getList(), "areaCode", "areaName", "isValid");

toSelectModel(item, "itemValue", "itemContent")