请教下面是什么错误？

[eevsee]

七月 26, 2017 3:12:35 下午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [default] in context with path [/plat] threw exception [org.hibernate.HibernateException: HQL:from User as o where o.loginName = 'admin' synax error.User is not mapped [from User as o where o.loginName = 'admin']; nested exception is org.hibernate.hql.ast.QuerySyntaxException: User is not mapped [from User as o where o.loginName = 'admin']] with root cause
org.hibernate.HibernateException: HQL:from User as o where o.loginName = 'admin' synax error.User is not mapped [from User as o where o.loginName = 'admin']; nested exception is org.hibernate.hql.ast.QuerySyntaxException: User is not mapped [from User as o where o.loginName = 'admin']



SQL是这样，String Sql = "from User as o where o.loginName = '" + loginName + "'";
我hql是写的是PO对象，不是table名，感觉没错吖，百度了一下实在没找解决方法，请问是什么错误，怎么解决？

[110成成]

有隐射吗？看错误提示实体类没有隐射

[eevsee]

引用 1 楼 zc881124 的回复:

有隐射吗？看错误提示实体类没有隐射

有吖，但是User.hbm.xml也看不出有什么错误

[achiman]

loginName 应该不是user的主键吧，返回类型是否正确，可以看下

[xiwei_2086]

看配置文件。

[110成成]

检查下你的mappingResources 配置

[lifewell1]

直接 写from User where loginName = 不用加 o hql解析的时候会自动生成一个表别名

[德弗特洛斯]

你贴出的SQL语句是不是有问题？最外层用双引号，里面就应该用单引号了呀。

[mmqw]

User表的映射有问题，看下hibernate的配置文件