对于类型为char(7)的

MySQL表中的“language”列,我遇到JPA / Hibernate映射问题.在我的实体中,为该字段生成的代码是：

private String language;

这在运行时会导致以下异常：

... 43 more

Caused by: javax.persistence.PersistenceException: [PersistenceUnit: prosvetaPersistenceUnit] Unable to build EntityManagerFactory

at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:911)

at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:74)

at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:225)

at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:308)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1477)

at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1417)

... 58 more

Caused by: org.hibernate.HibernateException: Wrong column type in joo16_dev.jos_categories for column language. Found: char,expected: varchar(255)

at org.hibernate.mapping.Table.validateColumns(Table.java:283)

at org.hibernate.cfg.Configuration.validateSchema(Configuration.java:1313)

at org.hibernate.tool.hbm2ddl.SchemaValidator.validate(SchemaValidator.java:139)

at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:378)

at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1842)

at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:902)

... 63 more

提前致谢 ！

J.P