create?table?teamBag?(id?varchar( 32 ),teamname?varchar( 32 ));
create?table?studentBag(id?varchar( 32 ),cardid?varchar( 32 ),name?varchar( 32 ),age? int ,description?varchar( 32 ),?team_id?varchar( 32 ),cid?varchar( 32 ));

package ?Collection.Bag;

public ? class ?Student? ... {
?? private ?String?id;
?? private ?String?name;
?? private ?String?description;
?? private ? int ?age;
?? private ?String?cardid;
?? private ?Team?team;
public ?String?getId()? ... {
???? return ?id;
}
public ? void ?setId(String?id)? ... {
???? this .id? = ?id;
}
public ?String?getName()? ... {
???? return ?name;
}
public ? void ?setName(String?name)? ... {
???? this .name? = ?name;
}
public ?String?getDescription()? ... {
???? return ?description;
}
public ? void ?setDescription(String?description)? ... {
???? this .description? = ?description;
}
public ? int ?getAge()? ... {
???? return ?age;
}
public ? void ?setAge( int ?age)? ... {
???? this .age? = ?age;
}
public ?String?getCardid()? ... {
???? return ?cardid;
}
public ? void ?setCardid(String?cardid)? ... {
???? this .cardid? = ?cardid;
}
public ?Team?getTeam()? ... {
???? return ?team;
}
public ? void ?setTeam(Team?team)? ... {
???? this .team? = ?team;
}
}



package ?Collection.Bag;

import ?java.util.ArrayList;
import ?java.util.List;
import ?java.util.Map;

public ? class ?Team? ... {
??? private ?String?id;
??? private ?String?teamname;
??? private ?List?students = new ?ArrayList();
public ?String?getId()? ... {
???? return ?id;
}
public ? void ?setId(String?id)? ... {
???? this .id? = ?id;
}
public ?String?getTeamname()? ... {
???? return ?teamname;
}
public ? void ?setTeamname(String?teamname)? ... {
???? this .teamname? = ?teamname;
}
public ?List?getStudents()? ... {
???? return ?students;
}
public ? void ?setStudents(List?students)? ... {
???? this .students? = ?students;
}

}

<? xml?version="1.0"?encoding="utf-8" ?>
<! DOCTYPE?hibernate-mapping?PUBLIC?"-//Hibernate/Hibernate?Mapping?DTD?3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<!-- ?
????Mapping?file?autogenerated?by?MyEclipse?-?Hibernate?Tools
-->
< hibernate-mapping >
< class? name ="Collection.Bag.Student" ?table ="studentBag" ? >
???? < id? name ="id" ?unsaved-value ="null" >
?????? < generator? class ="uuid.hex" ></ generator >
???? </ id >
???? < property? name ="cardid" ?type ="string" ?column ="cardid" ></ property >
???? < property? name ="name" ?type ="string" ?column ="name" ></ property >
???? < property? name ="age" ?type ="int" ?column ="age" ></ property >
???? < property? name ="description" ?type ="string" ?column ="description" ></ property > ?
???? < many-to-one? name ="team" ?
?????????????????column ="team_id"
?????????????????class ="Collection.Bag.Team" ?
?????????????????cascade ="none" ?
?????????????????fetch ="join" >
???? </ many-to-one >
</ class >

</ hibernate-mapping >

<? xml?version="1.0"?encoding="utf-8" ?>
<! DOCTYPE?hibernate-mapping?PUBLIC?"-//Hibernate/Hibernate?Mapping?DTD?3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd" >
<!-- ?
????Mapping?file?autogenerated?by?MyEclipse?-?Hibernate?Tools
-->
< hibernate-mapping >
< class? name ="Collection.Bag.Team" ?table ="teamBag" ? >
???? < id? name ="id" ?unsaved-value ="null" >
?????? < generator? class ="uuid.hex" ></ generator >
???? </ id >
???? < property? name ="teamname" ?type ="string" ?column ="teamname" ></ property >
?? ???? < bag? name ="students" ?table ="studentBag" ?cascade ="all,delete-orphan" ? >

?????? < key? column ="team_id" ></ key >
?????? < one-to-many? class ="Collection.Bag.Student" />
???? </ bag >
</ class >

</ hibernate-mapping >

<? xml?version='1.0'?encoding='UTF-8' ?>
<! DOCTYPE?hibernate-configuration?PUBLIC
??????????"-//Hibernate/Hibernate?Configuration?DTD?3.0//EN"
??????????"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd" >

<!-- ?Generated?by?MyEclipse?Hibernate?Tools.??????????????????? -->
< hibernate-configuration >

< session-factory >
???? < property? name ="connection.username" > root </ property >
???? < property? name ="connection.url" >
????????jdbc:mysql://localhost:3306/schoolproject?characterEncoding=gb2312 &amp; useUnicode=true
???? </ property >
???? < property? name ="dialect" >
????????org.hibernate.dialect.MySQLDialect
???? </ property >
???? < property? name ="myeclipse.connection.profile" > mysql </ property >
???? < property? name ="connection.password" > 1234 </ property >
???? < property? name ="connection.driver_class" >
????????com.mysql.jdbc.Driver
???? </ property >
???? < property? name ="hibernate.dialect" >
????????org.hibernate.dialect.MySQLDialect
???? </ property >
???? < property? name ="hibernate.show_sql" > true </ property >
???? < property? name