I get this exception when query data use hibernate2.03:
java.lang.NullPointerException
at com.entertop.bean.TrafficInfoMetaClass2.setPropertyValues(<generated>)
at net.sf.hibernate.persister.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:162)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:1961)
at net.sf.hibernate.loader.Loader.doFind(Loader.java:196)
at net.sf.hibernate.loader.Loader.find(Loader.java:620)
at net.sf.hibernate.hql.QueryTranslator.find(QueryTranslator.java:928)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1343)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:76)
at com.entertop.dao.hibernate.TrafficInfoDAOHibernate.findByStartPointEndPoint(TrafficInfoDAOHibernate.java:38)
.....
rethrown as net.sf.hibernate.PropertyAccessException: exception setting property value with CGLIB (set hibernate.cglib.use_reflection_optimizer=false for more info) setter of com.entertop.bean.TrafficInfo.?
at net.sf.hibernate.persister.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:167)
at net.sf.hibernate.impl.SessionImpl.initializeEntity(SessionImpl.java:1961)
at net.sf.hibernate.loader.Loader.doFind(Loader.java:196)
at net.sf.hibernate.loader.Loader.find(Loader.java:620)
at net.sf.hibernate.hql.QueryTranslator.find(QueryTranslator.java:928)
at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1343)
at net.sf.hibernate.impl.QueryImpl.list(QueryImpl.java:76)
at com.entertop.dao.hibernate.TrafficInfoDAOHibernate.findByStartPointEndPoint(TrafficInfoDAOHibernate.java:38)
Caused by: java.lang.NullPointerException
at com.entertop.bean.TrafficInfoMetaClass2.setPropertyValues(<generated>)
at net.sf.hibernate.persister.AbstractEntityPersister.setPropertyValues(AbstractEntityPersister.java:162)
TrafficInfo.hbm.xml
<hibernate-mapping>
<class
name="com.entertop.bean.TrafficInfo"
table="SC_TrafficInfo"
dynamic-update="true"
dynamic-insert="true"
>
<id
name="id"
column="id"
type="java.lang.String"
length="32"
unsaved-value="null"
>
<generator class="uuid.hex">
</generator>
</id>
<property
name="arrivalTime"
type="java.lang.String"
update="true"
insert="true"
column="arrivalTime"
/>
.....
TrafficInfoDAOHibernate.java:
Code:
public List findByStartPointEndPoint(String StartPoint, String EndPoint, int LimitNum)
throws HibernateException {
List l = null;
try {
beginTransaction();
// Log.printMessage("StartPoint="+StartPoint+"EndPoint="+EndPoint,sysParam.getInstance().debugFile);
Query q = session.createQuery("from TrafficInfo t where t.startPoint like :startPoint and t.endPoint like :endPoint");
q.setString("startPoint", "%" + StartPoint + "%");
q.setString("endPoint", "%" + EndPoint + "%");
l = q.list();
endTransaction(false);
} catch (HibernateException he) {
endTransaction(false);
throw he;
}
return l;
}
I catch the upper exception when I first invoke the Method findByStartPointEndPoint(),so, what's the metter? thx!
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