【hibernate出现 org.hibernate.PropertyNotFoundException: field [departmen] not found on cn.itcast.hibernate.domain.Employee1错误】的更多相关文章

hibernate出现 org.hibernate.PropertyNotFoundException: field [departmen] not found on cn.itcast.hibernate.domain.Employee1错误

hibernate出现 org.hibernate.PropertyNotFoundException: field [departmen] not found on cn.itcast.hibernate.domain.Employee1错误 出现这种错误是因为,实体类的配置文件(ClassName.hbm.xml)中的属性名和类中的属性名不一致造成的,检查并修改就可解决 比如: 类有如下属性: private int id; private String name;private Depar…

org.hibernate.TypeMismatchException: Provided id of the wrong type for class cn.itcast.entity.User. Expected: class java.lang.String, got class java.lang.Integer at org.hibernate.event.internal.Defau

出现org.hibernate.TypeMismatchException: Provided id of the wrong type for class cn.itcast.entity.User. Expected: class java.lang.String, got class java.lang.Integer at org.hibernate.event.internal.DefaultLoadEventListener.checkIdClass(DefaultLoadEvent…

报错:Caused by: org.hibernate.id.IdentifierGenerationException: ids for this class must be manually assigned before calling save(): cn.itcast.bos.domain.base.SubArea

因为 实体类中的主键 是String类型 不能自动为其分配id  所以需要手动设置在service层   model.setId(UUID.randomUUID().toString());…

org.hibernate.AnnotationException: No identifier specified for entity: cn.itcast.domain.Counter

因为我的hibernate映射表没有主键所以报这个错. 解决方案是: 1.创建一个主键 2.hibernate处理无主键的表的映射问题,其实很简单,就是把一条记录看成一个主键,即组合主键<composite-id>. 注意:使用虚拟联合主键的话,实体类必须实现序列化接口: org.hibernate.MappingException: Composite-id class must implement Serializable: cn.itcast.domain.Counter < hi…

hibernate延迟加载org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.javakc.hibernate.onetomany.entity.DeptEntity.emp, could not initialize proxy - no Session

public static void main(String[] args) {  DeptEntity dept = getDept("402882e762ae888d0162ae888e420000"); //dept.getEmp()得到子表的记录集合 System.out.println(dept.getEmp()); } private static DeptEntity getDept(String did){ Session session = sessionFactor…

Hibernate从入门到上手（纯java project、Maven版本hibernate）

Hibernate(orm框架)(开放源代码的对象关系映射框架) Hibernate是一个开放源代码的对象关系映射框架,它对JDBC进行了非常轻量级的对象封装,它将POJO与数据库表建立映射关系,是一个全自动的orm框架,hibernate可以自动生成SQL语句,自动执行,使得Java程序员可以随心所欲的使用对象编程思维来操纵数据库. Hibernate可以应用在任何使用JDBC的场合,既可以在Java的客户端程序使用,也可以在Servlet/JSP的Web应用中使用,最具革命意义的是,Hibe…

报错HTTP Status 500 - HHH000142: Javassist Enhancement failed: cn.itcast.entity.Customer; nested exception is org.hibernate.HibernateException: HHH000142: Javassist Enhancement failed: cn.itcast.entity.

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…

报错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:

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…

HTTP Status 500 - javax.el.PropertyNotFoundException: Property 'lkmId' not found on type cn.itcast.entity.LinkMan

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…

ERROR org.hibernate.internal.SessionImpl - HHH000346: Error during managed flush [object references an unsaved transient instance - save the transient instance before flushing: cn.itcast.domain.Custom

本片博文整理关于Hibernate中级联策略cascade和它导致的异常: Exception in thread "main" org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.mao.Address 关于这个异常应该是Hibernate初学者经常遇到的,导致…