Hibernate----component-entity (person-address-school)

 PackageCom.ij34.dao;ImportJavax.persistence.*; @Entity @table (name= "School_inf") Public classSchool {@Id @Column (name= "school_id") @GeneratedValue (Strategy=generationtype.identity)PrivateInteger ID; PrivateString name;  PublicInteger getId () {returnID; }     Public voidsetId (Integer id) { This. ID =ID; }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }    }

 PackageCom.ij34.dao;ImportJavax.persistence.*; @Entity @table (name= "People_inf") Public classPeopleImplementsjava.io.serializable{Private Static Final LongSerialversionuid = 1L; @Id @Column (Name= "people_id") @GeneratedValue (Strategy=generationtype.identity)PrivateInteger ID; PrivateString name; Private intAge ; Privateaddress address;  PublicInteger getId () {returnID; }     Public voidsetId (Integer id) { This. ID =ID; }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     Public intGetage () {returnAge ; }     Public voidSetage (intAge ) {         This. Age =Age ; }     PublicAddress getaddress () {returnaddress; }     Public voidsetaddress (address address) { This. Address =address; }}

 PackageCom.ij34.dao;ImportJava.util.HashSet;ImportJava.util.Set;ImportJavax.persistence.*;Importorg.hibernate.annotations.Parent; @Embeddable Public classaddress{@Column (name= "Message")    PrivateString message; @ParentPrivatepeople people; @OneToMany (targetentity=school.class) @JoinColumn (name= "address_id", referencedcolumnname= "people_id")    PrivateSet<school> school=NewHashset<>();  PublicString getMessage () {returnmessage; }     Public voidsetmessage (String message) { This. Message =message; }     PublicPeople GetPeople () {returnpeople; }     Public voidSetpeople (People people) { This. People =people; }     PublicSet<school>Getschool () {returnSchool; }     Public voidSetschool (set<school>School) {         This. School =School; }    }

 PackageCom.ij34.web; Importorg.hibernate.Session; Importorg.hibernate.SessionFactory; Importorg.hibernate.Transaction; ImportOrg.hibernate.boot.registry.StandardServiceRegistryBuilder; Importorg.hibernate.cfg.Configuration; ImportOrg.hibernate.service.*;Importcom.ij34.dao.Address;Importcom.ij34.dao.People;ImportCom.ij34.dao.School;  Public classtest01 { Public Static voidMain (string[] args)throwsException {//Instantiate a configurationConfiguration conf=NewConfiguration (). Configure (); Serviceregistry SR=NewStandardserviceregistrybuilder (). Applysettings (Conf.getproperties ()). build (); //creating a Sessionfactory instance with a configuration instanceSessionfactory sf=conf.buildsessionfactory (SR); //Create sessionSession session=sf.opensession (); //Start TransactionTransaction tx=session.begintransaction (); People Person=Newpeople (); Person.setage (29); //set values for two members of a composite primary keyPeople people=Newpeople (); People.setage (22); People.setname ("Lin Biao"); //persisting people objects (corresponding to inserting a master table record)Session.save (people); Address a=NewAddress (); A.setmessage (Guangzhou);   People.setaddress (a); School S1=NewSchool (); School S2=NewSchool (); S1.setname ("Harvard University"); S2.setname ("Social University");   Session.save (S1);   Session.save (S2);   A.getschool (). Add (S2);    A.getschool (). Add (S1);    Tx.commit ();    Session.close ();    Sf.close (); }    }

Hibernate----component-entity (person-address-school)