kingfunhuang的专栏

hibernate SQLQuery addEntity班级: Clazz (id, name) 学生: Student(id, name , class_id)1.查询持久化对象1.1 简单查询，返回数据库结构sql = "select c.* from clazz c,student s where s.class_id = c.id"; List<Clazz> clazzs = (List<

1.错误十月 11, 2016 8:37:18 上午 org.apache.catalina.session.StandardManager doLoad SEVERE: IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializab