Hibernate查询的时候出现的异常，
网上查了下，原因出在类中的属性名和类型跟映射文件中的是否一致；我在类中传的参数是“gg”,Hibernate配置映射文件的时候是Gg，大小写不同，结果导致此异常；
org.hibernate.QueryException: could not resolve property: gg of: com.css.model.GGGGG [from com.css.model.GGGGGa where gg= ? ]
at org.hibernate.persister.entity.AbstractPropertyMapping.toType(AbstractPropertyMapping.java:37)
at org.hibernate.persister.entity.AbstractEntityPersister.toType(AbstractEntityPersister.java:1265)
at org.hibernate.hql.ast.tree.FromElementType.getPropertyType(FromElementType.java:279)
at org.hibernate.hql.ast.tree.FromElement.getPropertyType(FromElement.java:372)
at org.hibernate.hql.ast.tree.DotNode.getDataType(DotNode.java:539)
at org.hibernate.hql.ast.tree.DotNode.prepareLhs(DotNode.java:221)
at org.hibernate.hql.ast.tree.DotNode.resolve(DotNode.java:172)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:94)
at org.hibernate.hql.ast.tree.FromReferenceNode.resolve(FromReferenceNode.java:90)
at org.hibernate.hql.ast.HqlSqlWalker.resolve(HqlSqlWalker.java:725)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.expr(HqlSqlBaseWalker.java:1215)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.exprOrSubquery(HqlSqlBaseWalker.java:4032)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.comparisonExpr(HqlSqlBaseWalker.java:3518)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.logicalExpr(HqlSqlBaseWalker.java:1758)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.whereClause(HqlSqlBaseWalker.java:776)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.query(HqlSqlBaseWalker.java:577)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.selectStatement(HqlSqlBaseWalker.java:281)
at org.hibernate.hql.antlr.HqlSqlBaseWalker.statement(HqlSqlBaseWalker.java:229)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:218)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:158)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:109)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:75)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:54)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71)
at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133)
at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112)
at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1583)
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