many方的配置java
@ManyToOne(cascade = CascadeType.REFRESH, optional = true) @JoinColumn(name = "数据库字段", unique = false)
one方的配置数据库
@OneToMany(mappedBy = "对象属性", cascade = CascadeType.REFRESH, fetch = FetchType.LAZY)
错误问题:Caused by: org.hibernate.MappingException: Could not determine type for: java.util.Listapp
解决:实体中的注解所有写在字段,或所有写在getXxx()方法上。fetch