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…
org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet" 最终解决:是因为我昨天对数据库修改,去掉一列…
报错如下: HTTP Status 500 - Unable to instantiate Action, visitAction, defined for 'visit_toAddPage' in namespace '/'Error creating bean with name 'visitAction' defined in class path resource [visit.xml]: Cannot resolve reference to bean 'visitService' w…
vsftpd启动报错:vsftpd:500 OOPS: bad bool value in config file for: anonymous_enable 今天在调试centos vsftp的时候,配置好了vsftpd准备重新启动时,出现了一个奇怪的现象, [root@localhost ~]# service vsftpd restart Shutting down vsftpd: [FAILED] Starting vsftpd for vsftpd: 500 OOPS: b…
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…
使用SpringBoot做JAVA开发时,用Repository.save();保存数据的时候遇到了报错: could not execute statement; SQL [n/a]; constraint [PRIMARY]; nested exception is org.hibernate.exception.ConstraintViolationException: could not execute statement 去搜索了一下解决方法,需要将主键设置自增,虽然不清楚为什么,但是…
新建core collection2后,启动solr服务,访问solr web界面报错. HTTP Status 503 - Server is shutting down or failed to initialize 翻译为 HTTP状态503 -服务器已关闭或初始化失败 错误原因: copy索引库后,记得要进行该 core.properties , name=collection2 你是否忘记改了呢?反正我忘记了,改完之后,访问没问题了.…
