hibernate报错：Could not parse 地图ping document from resource

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);