hibernate报错：Could not parse mapping document from resource
望高手指点

运行后报错：Could not parse mapping document from resource

相关代码如下：

数据库:
create table Login(
username varchar2(20) primary key,
password varchar2(20)
);

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">

<hibernate-configuration>

<session-factory>

<!-- Database connection settings -->
<property name="hibernate.connection.url">jdbc:oracle:thin:@localhost:1521:orcllib</property>
<property name="hibernate.connection.driver_class">oracle.jdbc.driver.OracleDriver</property>

<property name="hibernate.connection.username">myhr</property>
<property name="hibernate.connection.password">zls</property>

<mapping resource="com/pb/hibernate/po/Login.hbm.xml"/>
</session-factory>

</hibernate-configuration>

Login.hbm.xml
<?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">

<hibernate-mapping >
<class name="com.pb.hibernate.po.Login" table="LOGIN" schema="myhr">
<id name="userName" type="java.lang.String">
<colum name="USERNAME" length="20" />
<generator class="assigned" />
</id>
<property name="password" type="java.lang.String">
<colum name="PASSWORD" length="20" not-null="true"/>
</property>
</class>
</hibernate-mapping>

HibernateUtil.java
package com.pb.hibernate.util;

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
private static final SessionFactory sessionFactory;
static {
try {
Configuration config = new Configuration().configure();
sessionFactory = config.buildSessionFactory();
} catch (Throwable ex) {
System.err.println("Initial SessionFactory creation failed." + ex);

throw new ExceptionInInitializerError(ex);
}
}
public static SessionFactory getSessionFactory() {
return sessionFactory;
}
}

Login.java
package com.pb.hibernate.po;

public class Login {
private String userName;
private String password;
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}

LoginDao.java
package cn.pb.hibernate.dao;


import org.hibernate.Session;
import org.hibernate.Transaction;

import com.pb.hibernate.po.Login;
import com.pb.hibernate.util.HibernateUtil;

public class LoginDao {

public void save(Login login){
Session session = HibernateUtil.getSessionFactory().openSession();
Transaction tr = session.beginTransaction();

session.save(login);

tr.commit();
session.close();
System.out.println("添加成功！");
}
}

Test.java
package cn.pb.hibernate.test;

import cn.pb.hibernate.dao.LoginDao;

import com.pb.hibernate.po.Login;

public class Test {

public static void main(String[] args) {

Login login = new Login();
login.setUserName("Tom");
login.setPassword("white");
LoginDao ldao = new LoginDao();
ldao.save(login);
}
}

[解决办法]
<?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">
<hibernate-configuration>
改成
<?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">
试试，我要去睡觉了！
[解决办法]
<class name="com.pb.hibernate.po.Login" table="LOGIN" schema="myhr">改为 <class name="com.pb.hibernate.po" table="LOGIN" schema="myhr">不然找不到这个配置文件