EntityManager,以及union查询,left join查询 EntityManager是JPA中用于增删改查的接口,而通常我们使用的是Hibernate-EntityManager Hibernate-EntityManager
Hibernate主要是通过三个组件来实现的,及hibernate-annotation、hibernate-entitymanager和hibernate-core。 hibernate-entitymanager实现了标准的JPA,可以把它看成hibernate-core和JPA之间的适配器,它并不直接提供ORM的功能,而是对hibernate-core进行封装,使得
-- https://mvnrepository.com/artifact/org.hibernate/hibernate-entitymanager --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version
version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
两个版本的依赖项升级包括:Spring Framework 5.3.22、Project Reactor 2020.0.22、hibernate-entitymanager 5.6.10.Final 和
/dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
-- hibernate对jpa的支持包 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
artifactId> <version>${spring.boot.version}</version> <exclusions> <exclusion> <artifactId>hibernate-entitymanager
dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
org.springframework.boot:spring-boot-starter-aop org.springframework.boot:spring-boot-starter-jdbc org.hibernate:hibernate-entitymanager
dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
hibernate.version}</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
hibernate对jpa的实现jar--> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
-- hibernate对jpa的支持包 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
</dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
-- hibernate 对 jpa 的支持包 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
-- hibernate 对 jpa 的支持包 --> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager <version>4.10</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager
artifactId> <version>${spring.boot.version}</version> <exclusions> <exclusion> <artifactId>hibernate-entitymanager