使用hbiernate出现的Error reading resource
有两个表，student（person   id，addressid），address（addressid）

StudentPo类：
package   com.lovo.po;
public   class   StudentPo   {
private   int   personid;
private   AddressPo   address;

public   int   getPersonid()   {
return   personid;
}
public   void   setPersonid(int   personid)   {
this.personid   =   personid;
}
public   AddressPo   getAddress()   {
return   address;
}
public   void   setAddress(AddressPo   address)   {
this.address   =   address;
}
}

AddressPo类：
package   com.lovo.po;
public   class   AddressPo   {

private   int   addressid;

public   int   getAddressid()   {
return   addressid;
}

public   void   setAddressid(int   addressid)   {
this.addressid   =   addressid;
}
}

StudentPo.hbm.xml:

<?xml   version= "1.0 "   encoding= "UTF-8 "?>
<!DOCTYPE   RootElement   PUBLIC   "-//Hibernate/Hibernate   Mapping   DTD   3.0//EN "   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd ">
<hibernate-mapping>
<class   name= "com.lovo.po.StudentPo "   table= "student ">
<id   name= "personid "   column= "personid ">
<generator   class   = "increment "/>
</id>
<one-to-one   name= "address "   class= "AddressPo "   cascade= "all "> </one-to-one>
</class>
</hibernate-mapping>

AddressPo.hbm.xml:
<?xml   version= "1.0 "   encoding= "UTF-8 "?>
<!DOCTYPE   RootElement   PUBLIC   "-//Hibernate/Hibernate   Mapping   DTD   3.0//EN "   "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd ">
<hibernate-mapping>
<class   name= "com.lovo.po.AddressPo "   table= "address ">
<id   name= "addressid "   column= "addressid ">
<generator   class= "foreign ">
<param   name= "property "> student </param>
</generator>
</id>
<one-to-one   name= "student "   constrained= "true "> </one-to-one>
</class>
</hibernate-mapping>

hibernate.cfg.xml:
<?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>