An AnnotationConfiguration instance is required to use <mapping class="jebe7282/study/hibernate/Classes.hbm.xml"/> 这个是mapping 标签配置属性问题class 应该 改为<mapping resource="jebe7282/study/hibernate/Classes.hbm.xml"/>…

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in ServletContext resource [/WEB-INF/classes/applicationContext.xml]: Invocation of init method failed; nested exception is org…

在Hibernate中使用annotation出现错误.如题目所示. HibernateSessionFactory类中: //    private  static Configuration configuration = new Configuration(); //xx.hbm.xml形式下的new         private  static Configuration configuration = new org.hibernate.cfg.AnnotationConfigura…

1.错误描述:今天在起归档的时候报一下错误: SQL> alter database archivelog; alter database archivelog * ERROR at line : ORA: instance recovery required, cannot set ARCHIVELOG mode 2.从错误上看到是由于三大文件(datafile,controlfile,logfile)的scn不一致导致,造成scn不一致的原因是我们用了shutdown abort(shutd…

今天在起归档时遇到ORA-00265: instance recovery required, cannot set ARCHIVELOG mode的错误 从错误我们能够看到是由于datafile,controlfile,redolog中的SCN号不一致导致无法开启归档,那么导致该问题的解决办法是由于我重新启动数据库到mount的时候采用的是startup force mount;由于这个命令实际上是做了两步操作.分别例如以下:1.shutdown abort    ---强制关闭数据库2.st…

OS: Oracle Linux Server release 5.7 DB: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production SQL> startup mountORACLE instance started. Total System Global Area 3340451840 bytesFixed Size 2232960 bytesVariable Size 1912606080…

症状: 我打开后归档命令报告运行错误ORA-00265 SQL> alter database archivelog; alter database archivelog * ERROR at line 1: ORA-00265: instance recovery required, cannot set ARCHIVELOG mode 问题分析:      从如上错误我们能够看到是由于datafile,controlfile,redolog中的SCN号不一致导致无法开启归档,那么导致该问题的…

The   dialect   was   not   set.   Set   the   property   hibernate.dialect load hibernate.cfg.xml 出现了问题 获取配置信息代码应该这样写 Configuration conf = new Configuration().configure(); 2009.8.31 更新． An AnnotationConfiguration instance is required to use <mapping…

一对多 package cn.pojo; import javax.persistence.*; import java.io.Serializable; import java.util.Set; @Entity //声明这是一个实体类 必写 public class District implements Serializable { private static final long serialVersionUID = 8009273978191878070L; //编号 @Id //标…

(1)数据库驱动问题 log4j:WARN No appenders could be found for logger (org.hibernate.cfg.Environment). log4j:WARN Please initialize the log4j system properly. Exception in thread "main" org.hibernate.HibernateException: JDBC Driver class not found: com.m…