org.hibernate.hql.ast.QuerySyntaxException: is not mapped

org.hibernate.hql.ast.QuerySyntaxException:isnotmapped异常总结

分类：hibernate2011-11-0710:5410929人阅读评论(10)收藏举报hibernateuserorg.hibernate.hql.ast.QuerySyntaxException:Userisnotmapped[selectufromUseruwhereu.userName=:userNameandu.password=:password]
atorg.hibernate.hql.ast.util.SessionFactoryHelper.requireClassPersister(SessionFactoryHelper.java:158)
atorg.hibernate.hql.ast.tree.FromElementFactory.addFromElement(FromElementFactory.java:87)
atorg.hibernate.hql.ast.tree.FromClause.addFromElement(FromClause.java:70)
atorg.hibernate.hql.ast.HqlSqlWalker.createFromElement(HqlSqlWalker.java:257)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.fromElement(HqlSqlBaseWalker.java:3056)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.fromElementList(HqlSqlBaseWalker.java:2945)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.fromClause(HqlSqlBaseWalker.java:688)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:544)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281)
atorg.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229)
atorg.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:228)
atorg.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:160)
atorg.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:111)
atorg.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:77)
atorg.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:56)
atorg.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:72)
atorg.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133)
atorg.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112)
atorg.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1623)
atsun.reflect.NativeMethodAccessorImpl.invoke0(NativeMethod)
atsun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
atsun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
atjava.lang.reflect.Method.invoke(Method.java:597)
atorg.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWrapper.invoke(ThreadLocalSessionContext.java:301)
at$Proxy0.createQuery(UnknownSource)
atorg.kf.dao.impl.UserDaoImpl.userLogin(UserDaoImpl.java:40)
atorg.kf.biz.UserBiz.userLogin(UserBiz.java:19)
attest.Test.main(Test.java:13)
上面的异常的抛出主要有几个方面：1、最容易想到的，就是你的from是实体类而不是表名，这个应该大家都知道，注意大小写
2、你的hibernate配置文件中没有加入相应的映射文件<mappingresource=""/>
3、如果上面两方面都对了，还有错，基本上处于崩溃状态，哈哈....一般是上面两种原因，还是不行，那就是你hql语句有错了，好好检查一下，仔细点，不行就重新写一遍，因为我就是因为一个中文空格被折腾了两天啊，就是找不出哪儿出错了，怎么看怎么对，可是就是报错，哈哈...很崩溃的。