今天要给一个实体类添加一个List集合属性!
private List childList = new ArrayList();
写完后get/set方法一写,启动就报错:
org.hibernate.MappingException: Could not determine type for: java.util.List, at table: T_REVERTS, for columns: [org.hibernate.mapping.Column(childList)]
解决办法:在属性的get方法上加上一段注解标识它是临时属性,不是数据库字段就OK
@Transient
public List getChildList() {
return childList;
}
public void setChildList(List childList) {
this.childList = childList;
}
记得导入的是:
import javax.persistence.Transient;