Question

java.lang.IllegalArgumentException:

java.lang.IllegalArgumentException: Parameter staffId does not exist as a named parameter in [from org.gd.film.vo.StaffRole a where a.staffId= :staffId and a.roleCode= :roleCode]

org.hibernate.impl.AbstractQueryImpl.setParameter(AbstractQueryImpl.java:380) org.hibernate.impl.AbstractQueryImpl.setString(AbstractQueryImpl.java:667) org.gd.film.dao.impl.StaffRoleDAOImpl.isRole(StaffRoleDAOImpl.java:17) org.gd.film.service.impl.StaffRoleServiceImpl.isRole(StaffRoleServiceImpl.java:19) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) java.lang.reflect.Method.invoke(Unknown Source) org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)

StaffRoleDAOImpl.isRole

这是什么错？应该怎样改？
语句改成frin org.gd.film.vo.StaffRole则存在此警告：
WARN [org.hibernate.hql.QuerySplitter] - no persistent classes found for query class: from org.gd.film.vo.StaffRole

Answer 1

StaffRole这个类没有staffId 或者 roleCode这个字段

追问

有这个字段的，get，set方法都有