hibernate+连接池

<session-factory>        <property name="connection.datasource">java:comp/env/jdbc/sampledb</property>
        <property name="show_sql">false</property>
        <property name="dialect">org.hibernate.dialect.PostgreSQLDialect</property>        
        <mapping resource="Cat.hbm.xml"/>    < ssion-factory>
兄弟。标签不匹配吧