在用NHibernate1.2.0.GA版本中自带的NHibernate.Examples-2.0下的QuickStart测试连接Oracle数据库时,一直提示:System.Data.OracleClient.OracleException : ORA-12704: character set mismatch,但如果改成连接SqlServer数据库,一切OK。
Config文件中的配置如下:
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User.hbm.xml文件中的配置如下:
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在网上找了很久也没有找到这方面的错误信息,后来我查看了NHibernate的源码,在Type下发现了另外一种类型:AnsiString,这让我立即想起在使用Castle连接Oracle时,是使用的AnsiString类型,故把User.hbm.xml改成如下:
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用NUnit测试,立即成功。
问题虽然已经解决,但我又想到另外一个问题,因为在使用NHibernate时,每一个实体类都对应一个*.hbm.xml,那在开发支持多数据库应用时,字符类型不就会出现在使用SqlServer 时使用String类型,在使用Oracle时使用AnsiString了吗?不知道这个问题大家是如何解决的,请高人指点,先谢了!