Hibernate3升级Hibernate4.3后报“HHH000223”

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[util.xml.DTDEntityResolver] HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!

[util.xml.DTDEntityResolver] HHH000223: Recognized obsolete hibernate namespace http://hibernate.sourceforge.net/. Use namespace http://www.hibernate.org/dtd/ instead. Refer to Hibernate 3.6 Migration Guide!

Hibernate3.6升级Hibernate4.3后报以上错误，经过相关资料查询，找出项目中所有Hibernate的所有数据库mapping文件，即：xxxxxxxx.hbm.xml

把配置文件里出现的“http://hibernate.sourceforge.net/”替换成“http://www.hibernate.org/dtd/”

另外，如果提示

WARN  [hibernate.id.UUIDHexGenerator] HHH000409: Using org.hibernate.id.UUIDHexGenerator which does not generate IETF RFC 4122 compliant UUID values; consider using org.hibernate.id.UUIDGenerator instead

WARN [hibernate.id.UUIDHexGenerator] HHH000409: Using org.hibernate.id.UUIDHexGenerator which does not generate IETF RFC 4122 compliant UUID values; consider using org.hibernate.id.UUIDGenerator instead

请把mapping文件中的

<generator class="uuid.hex" />

替换成

<generator class="uuid2" />

注意：但由此会引发生成的主键从32位变成了36位，所以有需要修改的请记得把数据库长度做相应长度的调整后在用。

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