Java验证对象的属性值是否都为空

package com.hzrc.apply.utils;

import com.hzrc.entity.user.ApplyTemplate;

import java.lang.reflect.Field;
import java.util.ArrayList;


public class ObjectUtil {

    
    public static boolean allFieldIsNullFlag(Object object) {

        boolean flag = true;

        Class clazz = object.getClass();
        Field[] fields = clazz.getDeclaredFields();

        for (Field field : fields) {
            //设置属性是可以访问的(私有的也可以)
            field.setAccessible(true);
            Object value = null;
            try {
                value = field.get(object);
                // 只要有1个属性不为空,那么就不是所有的属性值都为空
                if (value != null) {
                    flag = false;
                    break;
                }
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }

        return flag;
    }


    public static void main(String[] args) {

        ApplyTemplate applyTemplate = new ApplyTemplate();
        System.out.println(allFieldIsNullFlag(applyTemplate));

        applyTemplate.setBasicInfoConfirmLabel(new ArrayList<>());
        System.out.println(allFieldIsNullFlag(applyTemplate));


    }
}

知是行之始，行是知之成！