如何在不删除映射表中先前数据的情况下使用 Hibernate 或 JPA 建立多对多关系 [英]How to do many-to-many relationship without deleting the previous data in mapping table using Hibernate or JPA
多对多JPA Hibernate通过连接表错误映射组合键 [英]Many-to-Many JPA Hibernate mapping composite key through join table error