【spring 整合hibernate注解时候，出现“Unknown entity: com.ssh.entry.Admin; nested exception is org.hibernate.MappingException: Unknown entity: com.ssh.entry.Admin”异常的问题】的更多相关文章

spring 整合hibernate注解时候，出现“Unknown entity: com.ssh.entry.Admin; nested exception is org.hibernate.MappingException: Unknown entity: com.ssh.entry.Admin”异常的问题

今天学习使用ssh框架的时候,出现一个异常,弄了好久才找到,在这记录一下,我的sb错误1.spring整合hibernate,取代*.hbm.xml配置文件   在applicationContext.xml文件中配置方式 `<!-- 数据库连接池 --> <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"> <property name=&qu…

org.springframework.dao.InvalidDataAccessApiUsageException: detached entity passed to persist: sys.entity.Role; nested exception is org.hibernate.PersistentObjectException: 的解决方案

1.错误信息 org.springframework.dao.InvalidDataAccessApiUsageException: detached entity passed to persist: sys.entity.Role; nested exception is org.hibernate.PersistentObjectException: detached entity passed to persist: sys.entity.Role at org.springframew…

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…

identifier of an instance of xx.entity was altered from xxKey@249e3cb2 to xxKey@74e8f4a3; nested exception is org.hibernate.HibernateException: identifier of an instance of xxentity was altered from错误

用entityManager保存数据时报错如下 identifier of an instance of xx.entity was altered from xxKey@249e3cb2 to xxKey@74e8f4a3; nested exception is org.hibernate.HibernateException: identifier of an instance of xxentity was altered from xxKey@249e3cb2 to xxKey@74e…

HTTP Status 500 - Request processing failed; nested exception is org.hibernate.exception.GenericJDBCException: could not execute statement

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…

Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hibernate.HibernateException: Unable t

spring与hibernate整合然后出现如下错误: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [applicationContext.xml]: Invocation of init method failed; nested exception is org.hib…

【hibernate】报错：org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.DataException: could not execute statement

报错如下: org.springframework.dao.DataIntegrityViolationException: could not execute statement; SQL [n/a]; nested exception is org.hibernate.exception.DataException: could not execute statement at org.springframework.orm.jpa.vendor.HibernateJpaDialect.co…

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open con

org.springframework.transaction.CannotCreateTransactionException: Could not open Hibernate Session for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Cannot open connection org.springframework.orm.hibernate3.Hiberna…

org.hibernate.QueryException: JPA-style positional param was not an integral ordinal; nested exception is java.lang.IllegalArgumentException: org.hibernate.QueryException: JPA-style positional param w

org.hibernate.QueryException: JPA-style positional param was not an integral ordinal; nested exception is java.lang.IllegalArgumentException: org.hibernate.QueryException: JPA-style positional param was not an integral ordinal 在用jpa nativequery语句中,用s…