JCache只缓存部分字段

项目中使用的JCache缓存实体，发现每次缓存时存进去了实体，取出的时候字段有些是空的。

具体环境为

Springboot v2.01

JCache（ehcache 3.4.0）

jdk 1.8.0_201

maven 3.6.0

最开始以为是取的时候无法取出父类的字段（实体继承了一个父类，空的字段都是父类的字段，所以定位到取的问题）。

 @MappedSuperclass
 @Data
 //@Entity
 public class AlertRuleSuperBean {
     /**
      * 报警规则主键
      */
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)
     @Column(name = "alert_rule_id")
     protected Integer alertRuleId;
 }

决定手动赋值

 @Service
 @EnableCaching
 public class CacheServiceImpl implements CacheService {

     @Override
     @Cacheable(key = "#key",cacheNames = "dtuRule")
     public AlertRuleProjectBean doDtuRule(String key, AlertRuleProjectBean bean) {
         System.out.println("I am a doDtuRule!key is "+ key);
         //只缓存子类bug，所以手动赋值
         AlertRuleProjectBean resultBean=new AlertRuleProjectBean();
         resultBean.setDtuEventTimestamp(bean.getDtuEventTimestamp());
         resultBean.setProjectId(bean.getProjectId());
         resultBean.setAlertRuleMax(bean.getAlertRuleMax());
         resultBean.setAlertRule(bean.getAlertRule());
         resultBean.setAlertRuleStatus(bean.getAlertRuleStatus());
         resultBean.setAlertRuleMin(bean.getAlertRuleMin());
         resultBean.setDtu_data_id(bean.getDtu_data_id());
         resultBean.setAlertConditionType(bean.getAlertConditionType());
         resultBean.setAlertPriority(bean.getAlertPriority());
         resultBean.setAlertRuleId(bean.getAlertRuleId());
         resultBean.setAlertRuleName(bean.getAlertRuleName());
         resultBean.setSmoothTime(bean.getSmoothTime());
         resultBean.setAlertType(bean.getAlertType());
         resultBean.setIsProjectUserVisual(bean.getIsProjectUserVisual());
         resultBean.setRuleStatus(bean.getRuleStatus());
         resultBean.setTimestamp(bean.getTimestamp());
         return resultBean;
     }

     @Override
     @CacheEvict(key="#key",condition = "#key!='mfb'",cacheNames = "dtuRule",allEntries = false)
     public void removeDtuRule(String key) {
         System.out.println("cache removed!key is "+key);

     }
 }

赋值后仍然是部分为空，完全没有效果！

试着取消继承（将继承的一些父类字段手动copy到子类，取消extend），问题解决！