Bean property 'sessionFactory' is not writable or has an invalid setter method

三大框架在配置的时候，总是提示：

Bean property 'sessionFactory' is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?

配置的sessionFactory如下：

hibernate.dialect=org.hibernate.dialect.Oracle10gDialect
hibernate.show_sql=true
hibernate.current_session_context_class=thread




com/it/hbm/RuKuDan.hbm.xml
com/it/hbm/RuKuDanMingXi.hbm.xml
com/it/hbm/RuKuDingDan.hbm.xml