@JsonInclude(JsonInclude.Include.NON_EMPTY)

ALWAYS // 默認(rèn)策略，任何情況都執(zhí)行序列化
NON_NULL // 非空
NON_ABSENT // null的不會(huì)序列化，但如果類型是AtomicReference，依然會(huì)被序列化
NON_EMPTY // null、集合數(shù)組等沒有內(nèi)容、空字符串等，都不會(huì)被序列化
NON_DEFAULT // 如果字段是默認(rèn)值，就不會(huì)被序列化
CUSTOM // 此時(shí)要指定valueFilter屬性，該屬性對(duì)應(yīng)一個(gè)類，用來自定義判斷被JsonInclude修飾的字段是否序列化
USE_DEFAULTS // 當(dāng)JsonInclude在類和屬性上都有時(shí)，優(yōu)先使用屬性上的注解，此時(shí)如果在序列化的get方法上使用了JsonInclude，并設(shè)置為USE_DEFAULTS，就會(huì)使用類注解的設(shè)置

package com.bless.wms.utils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.beanutils.PropertyUtilsBean;
import org.springframework.cglib.beans.BeanGenerator;
import org.springframework.cglib.beans.BeanMap;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;
/**
 * 動(dòng)態(tài)添加實(shí)體類字段
 */
@Slf4j
public final class PropertyAppender {
    private static final class DynamicBean {
        private Object target;
        private BeanMap beanMap;
        private DynamicBean(Class superclass, Map<String, Class> propertyMap) {
            this.target = generateBean(superclass, propertyMap);
            this.beanMap = BeanMap.create(this.target);
        }
        private void setValue(String property, Object value) {
            beanMap.put(property, value);
        }
        private Object getValue(String property) {
            return beanMap.get(property);
        }
        private Object getTarget() {
            return this.target;
        }
        /**
         * 根據(jù)屬性生成對(duì)象
         */
        private Object generateBean(Class superclass, Map<String, Class> propertyMap) {
            BeanGenerator generator = new BeanGenerator();
            if (null != superclass) {
                generator.setSuperclass(superclass);
            }
            BeanGenerator.addProperties(generator, propertyMap);
            return generator.create();
        }
    }
    public static Object generate(Object dest, Map<String, Object> newValueMap) throws InvocationTargetException, IllegalAccessException {
        PropertyUtilsBean propertyUtilsBean = new PropertyUtilsBean();
        //1.獲取原對(duì)象的字段數(shù)組
        PropertyDescriptor[] descriptorArr = propertyUtilsBean.getPropertyDescriptors(dest);
        //2.遍歷原對(duì)象的字段數(shù)組，并將其封裝到Map
        Map<String, Class> oldKeyMap = new HashMap<>();
        for (PropertyDescriptor it : descriptorArr) {
            if (!"class".equalsIgnoreCase(it.getName())) {
                oldKeyMap.put(it.getName(), it.getPropertyType());
                newValueMap.put(it.getName(), it.getReadMethod().invoke(dest));
            }
        }
        //3.將擴(kuò)展字段Map合并到原字段Map中
        newValueMap.forEach((k, v) -> oldKeyMap.put(k, v.getClass()));
        //4.根據(jù)新的字段組合生成子類對(duì)象
        DynamicBean dynamicBean = new DynamicBean(dest.getClass(), oldKeyMap);
        //5.放回合并后的屬性集合
        newValueMap.forEach((k, v) -> {
            try {
                dynamicBean.setValue(k, v);
            } catch (Exception e) {
                log.error("動(dòng)態(tài)添加字段【值】出錯(cuò)", e);
            }
        });
        return dynamicBean.getTarget();
    }
}