hibernate中 org.hibernate.MappingException: invalid configuration 报错

<session-factory>
   <!-- #1:基本四项 -->
  <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>
  <property name="hibernate.connection.url">jdbc:mysql://localhost:3306/h01</property>
  <property name="hibernate.connection.username">root</property>
  <property name="hibernate.connection.password">123</property>
  <!-- #2:方言 -->
  <property name="hibernate.dialect">org.hibernate.dialect.MySQL5Dialect</property>
 
  <!-- #3 显示sql语句,格式化sql语句 -->
  <property name="hibernate.show_sql">true</property>
  <property name="hibernate.format_sql">true</property>
  
  <!-- 注册映射文件 -->
  <mapping resource="cn/itcast/a_hello/User.hbm.xml"/>
 
  
  <!-- 取消bean验证, javaweb6.0时才有 -->
  <property name="javax.persistence.validation.mode">none</property>
  这两行换下位置即可
  
 </session-factory>

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