Unknown entity 一直报这个错啊~ 新手求解

这是hibernate的配置文件，百度都说是 映射文件文字错误等。。我都检查了没问题啊。。。

<?xml version='1.0' encoding='utf-8'?>

<!DOCTYPE hibernate-configuration

    PUBLIC "-//Hibernate/Hibernate Configuration DTD//EN"    

    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

<session-factory>

	<property name="hibernate.connection.datasource">

		java:comp/env/jdbc/qss

	</property>

	<property name="show_sql">false</property>

	<property name="format_sql">false</property>

	<property name="dialect">

		com.huatech.sysframe.webapp.common.dao.hibernate.dialet.BaseInformixDialect

	</property>

	<property name="hibernate.generate_statistics">false</property>

		

	<mapping resource="com/huatech/emp/entity/Emp.hbm.xml"/>

</session-factory>

</hibernate-configuration>

求大神解决啊~