用了这么久的Hibernate了，今天却遇到一个从未遇到的问题，幸好我思维敏捷，善于联想，才得以在短时间内发现并解决了问题。以下是具体描述。
我在HibernateDAO这个类里增加了一个方法如下：
public Object getById(Class clazz, String id) throws HibernateException{
return session.find("from "+clazz.getName()+" o where o.id=?",id,Hibernate.STRING).get(0);
}你知道，我的PO类的主键都是名为oid的。凑巧的是，有一些PO类除了具有oid属性外，还具有名为id的属性，用来表示业务编号，例如教师编号、文化程度的编号等等。这些类在使用这个方法时总报下面的异常：
java.lang.IndexOutOfBoundsException: Index: 0, Size: 0郁闷了半个小时，终于想到，会不会是查询语句中的o.id，Hibernate认为这里的id表示的是主键oid呢？在debug里把参数按oid的值一改，发现果然如此！
解决方法：暂时还不知道有什么方法能起到转义的作用，不过id这个属性确实有点容易产生歧义，还是改名为code吧。
搬家前链接：https://www.cnblogs.com/bjzhanghao/archive/2004/07/28/28064.html
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