求帮忙 真心找不到哪漏什么了目录结构
src
 -User.java
 -User.hbm.xml
 -ExportDB.java
hibernate.cfg.xmlUser.java
package xyh;import java.util.Date;public class User { private String id;

private String name;

private String password;

private Date createTime;

private Date expireTime; 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 getPassword() {
return password;
} public void setPassword(String password) {
this.password = password;
} public Date getCreateTime() {
return createTime;
} public void setCreateTime(Date createTime) {
this.createTime = createTime;
} public Date getExpireTime() {
return expireTime;
} public void setExpireTime(Date expireTime) {
this.expireTime = expireTime;
}
}User.hbm.xml<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC 
"-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<hibernate-mapping>
<class name="xyh.User" table="t_user" >
<id name="id">
<generator class="uuid"/>
</id>
<property name="name"/>
<property name="password"/>
<property name="createTime"/>
<property name="expireTime"/>
</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="dialect">org.hibernate.dialect.SQLServerDialect</property>
        <property name="connection.url">jdbc:sqlserver://127.0.0.1:1433;databaseName=TESTHIB</property>
        <property name="connection.username">sa</property>
        <property name="connection.password">123456</property>
        <property name="connection.driver_class">com.microsoft.sqlserver.jdbc.SQLServerDriver</property>
        <property name="myeclipse.connection.profile">sql</property>
     <property name="show_sql">true</property>
<mapping resource="xyh.User.hbm.xml" />
    </session-factory></hibernate-configuration>运行这个出错package xyh;import org.hibernate.cfg.Configuration;
import org.hibernate.tool.hbm2ddl.SchemaExport;/**
 * 将hbm生成ddl
 * @author Administrator
 *
 */
public class ExportDB { public static void main(String[] args) {

//默认读取hibernate.cfg.xml文件
Configuration cfg = new Configuration().configure();

SchemaExport export = new SchemaExport(cfg);
export.create(true, true);
}
}Exception in thread "main" org.hibernate.MappingNotFoundException: resource: xyh.User.hbm.xml not found
at org.hibernate.cfg.Configuration.addResource(Configuration.java:563)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1587)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1555)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1534)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1508)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1428)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1414)
at xyh.ExportDB.main(ExportDB.java:16)