摘要：1.exists关键字的应用 参考此链接 https://www.jb51.net/article/214634.htm Spring data jpa支持的关键字介绍 SampleJPQL snippet And findByLastnameAndFirstname … where x.lastn 阅读全文

摘要：@OneToMany注解的使用 实现一对多级联操作主表类@OneToMany(mappedBy = "contentApply",cascade = {CascadeType.ALL})@JsonIgnoreProperties(value = { "contentApply" }, allowSe 阅读全文

摘要：引用包<dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-jpamodelgen</artifactId> <scope>provided</scope></dependency><dependency> <grou 阅读全文