Ubuntu 18.04Java executable of version 1.8 is not found:- Neither the JAVA_HOME nor the JRE_HOME environment variable is defined
- Java executable is notPlease ensure JDK or JRE is installed and <e
我在Java中使用Hibernate将类映射到DB表。我有一个人表,每个条目都有许多宠物,每个宠物都有许多玩具。我希望能够根据玩具的属性在我的DAO中过滤这些属性;例如,查找所有拥有红色玩具的宠物的人,作为List<Person>。我如何对此进行过滤?@OneToMany(mappedBy = "person")}@Entity
public class Pet