更改DAO文件时{org.apache.jasper.JasperException:java.lang.ClassCastxception:java.lang.Integer无法强制转换}发生_Java_Eclipse_Hibernate_Jsp_Dao

更改DAO文件时{org.apache.jasper.JasperException:java.lang.ClassCastxception:java.lang.Integer无法强制转换}发生

java eclipse hibernate jsp

更改DAO文件时{org.apache.jasper.JasperException:java.lang.ClassCastxception:java.lang.Integer无法强制转换}发生,java,eclipse,hibernate,jsp,dao,Java,Eclipse,Hibernate,Jsp,Dao,当我从 List<bid> bid = session.createQuery("SELECT ent FROM bid ent WHERE ent.biderID = :param1 GROUP BY maxBid ") file.bid是实体代码List bid=（List）session.createQuery（“”.List（）； List<bid> bid = session.createQuery("SELECT MAX(bidding) FROM b

当我从

List<bid> bid = session.createQuery("SELECT  ent FROM bid ent WHERE ent.biderID = :param1  GROUP BY maxBid ")

file.bid

是实体代码

List bid=（List）session.createQuery（“”.List（）；

List<bid> bid = session.createQuery("SELECT  MAX(bidding) FROM bid ent WHERE ent.biderID = :param1  GROUP BY maxBid ")

org.apache.jasper.JasperException: java.lang.ClassCastException: java.lang.Integer cannot be cast to file.bid