在使用模型驱动封装的时候,要保证表单中name属性名和类中属性名一致,否则将会报错如下: HTTP Status 500 - The given object has a null identifier: cn.itcast.entity.Customer; nested exception is org.hibernate.TransientObjectException: The given object has a null identifier: cn.itcast.entity.Cus…

报错 type Exception report message HHH000142: Javassist Enhancement failed: cn.itcast.entity.Customer; nested exception is org.hibernate.HibernateException: HHH000142: Javassist Enhancement failed: cn.itcast.entity.Customer description The server encou…

edit.jsp页面没有加入隐藏字段 id ,导致模型驱动封装时缺少id ,,调用update更新数据库时出错!…

我碰到这个问题的时候,没有数据类型不匹配的情况,也没有表达无法向action传递数据的情况,一直报这样的错误,意思就是无法使用Customer中的get方法来赋值.完整报错如下所示: HTTP Status 500 - IllegalArgumentException occurred calling getter of cn.itcast.entity.Customer.cid; nested exception is org.hibernate.PropertyAccessException…

报错如下: HTTP Status 500 - Unable to instantiate Action, visitAction, defined for 'visit_toAddPage' in namespace '/'Error creating bean with name 'visitAction' defined in class path resource [visit.xml]: Cannot resolve reference to bean 'visitService' w…

No qualifying bean of type [cn.itcast.bos.web.service.base.CourierService] found for dependency: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotatio…

vsftpd启动报错:vsftpd:500 OOPS: bad bool value in config file for: anonymous_enable  今天在调试centos vsftp的时候,配置好了vsftpd准备重新启动时,出现了一个奇怪的现象,    [root@localhost ~]# service vsftpd restart  Shutting down vsftpd: [FAILED]  Starting vsftpd for vsftpd: 500 OOPS: b…

1.什么操作出现:当我在项目中添加产品或者修改时,浏览器出现HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement; Ecplise出现这个: 十二月 20, 2017 1:51:02 下午 org.apache.catalina.core.StandardWrapperVal…

报错:无法将类型"System.Data.EntityState"隐式转换为"System.Data.Entity.EntityState".   出错语句停留在:DataContext.Entry(entity).State = EntityState.Modified; 从语法上看没有什么错误.DataContext是在Model层通过添加edmx自动生成的,而出错语句所在的数据层安装了最新版的Entity Framework,我们知道:在edmx中创建实体导入…

报错 type Exception report message javax.el.PropertyNotFoundException: Property 'lkmId' not found on type cn.itcast.entity.LinkMan description The server encountered an internal error that prevented it from fulfilling this request. exception org.apache…