Hibernate报错，急！
org.springframework.orm.hibernate3.HibernateQueryException: undefined alias: postdate [select postdate from com.laoer.blog.bean.Article where blogid = ? group by postdate]; nested exception is org.hibernate.QueryException: undefined alias:
postdate [select postdate from com.laoer.blog.bean.Article where blogid = ? group by postdate]
org.hibernate.QueryException: undefined alias: postdate [select postdate from com.laoer.blog.bean.Article where blogid = ? group by postdate]
我用的是struts+spring+hibernate,错误怎么也调不出来了，大家帮帮忙吧！
[解决办法]
帮顶！
[解决办法]
HQL语句的问题,应该这样
from com.laoer.blog.bean.Article a where a.blogid = ? group by a.postdate
