10, based on the annotation configuration Many2one

1, based on the annotation configuration Many2one

Student.java

 PackageOrg.zttc.itat.model;Importjavax.persistence.Entity;ImportJavax.persistence.FetchType;ImportJavax.persistence.GeneratedValue;Importjavax.persistence.Id;ImportJavax.persistence.JoinColumn;ImportJavax.persistence.ManyToOne;Importjavax.persistence.Table; @Entity @table (name= "T_student") Public classStudent {Private intID; PrivateString name; PrivateString No; PrivateClassroom Classroom; @Id @GeneratedValue Public intgetId () {returnID; }     Public voidSetId (intID) { This. ID =ID; }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicString Getno () {returnNo; }     Public voidSetno (String no) { This. No =No; } @ManyToOne (Fetch=fetchtype.lazy) @JoinColumn (name= "CID")     PublicClassroom Getclassroom () {returnClassroom; }     Public voidsetclassroom (Classroom classroom) { This. Classroom =Classroom; }}

Classroom.java

 PackageOrg.zttc.itat.model;Importjavax.persistence.Entity;ImportJavax.persistence.FetchType;ImportJavax.persistence.GeneratedValue;Importjavax.persistence.Id;ImportJavax.persistence.JoinColumn;ImportJavax.persistence.ManyToOne;Importjavax.persistence.Table; @Entity @table (name= "T_student") Public classStudent {Private intID; PrivateString name; PrivateString No; PrivateClassroom Classroom; @Id @GeneratedValue Public intgetId () {returnID; }     Public voidSetId (intID) { This. ID =ID; }     PublicString GetName () {returnname; }     Public voidsetName (String name) { This. Name =name; }     PublicString Getno () {returnNo; }     Public voidSetno (String no) { This. No =No; } @ManyToOne (Fetch=fetchtype.lazy) @JoinColumn (name= "CID")     PublicClassroom Getclassroom () {returnClassroom; }     Public voidsetclassroom (Classroom classroom) { This. Classroom =Classroom; }}

The following modifications are required in the Hibernate.cfg.xml

<class= "Com.baowei.entity.User"/>

10, based on the annotation configuration Many2one