在没有配置数据库的时候, 直接启动springBoot 项目 会有报错 Description: Failed to configure a DataSource: 'url' attribute is not specified and no embedded datasource could be configured. Reason: Failed to determine a suitable driver class 这是因为springBoot 在启动的时候, spring boot
解决eclipse spring配置报错:cvc-elt.1: Cannot find the declaration of element 'beans'.Referenced file contains errors (http://www.springframework.org/schema/aop/spring-aop-3.1.xsd). 原因是无法从网络上读取到相应的schema文件,但实际上在浏览器中是可以访问的.却一直在eclipse中显示红叉,当然,并不影响编译打包. 查看所依赖
原文博客链接地址:数据库open报错ORA-01555: snapshot too old 今天正在东莞蜜月的时候.一个学生说他管理的測试库出问题了,无法open,我们先来看看是什么问题: Recovery of Online Redo Log: Thread 1 Group 4 Seq 4 Reading mem 0 Mem# 0: /onlinelog/shr/redo04.log Completed redo application of 0.00MB Completed crash re
1.数据库启动报错: ORA-: out of memory SQL> startup pfile='/db/oracle/init.ora'; ORA-: out of memory Linux-x86_64 Error: : No space left on device Additional information: - Additional information: .内存不足?查看操作系统内存: $ free -h total used free shared buffers cach
前提: 使用Django自带的test进行单元测试. 问题描述: 运行:python manage.py test,报错,出现数据库乱码的现象,报错如下: Creating test database for alias 'default'... Got an error creating the test database: (1007, u"Can't create database 'test_yd_zy_bank'; database exists") Type 'yes' i
配置过程中,查看/var/log/meassage 有报错信息: action '*' treated as ':omusrmsg:*' - please use ':omusrmsg:*' syntax instead, '*' will not be supported in the future [v8.17.0 try http://www.rsyslog.com/e/2184 ]error during parsing file /etc/rsyslog.conf, on or bef
最近比较空,想研究下spring mvc,于是编按照教程一步一步配置开发环境.配置maven完成后,运行命令mvn -v的时候,竟然报错.错误信息如下: Error: JAVA_HOME not found in your environment.Please set the JAVA_HOME variable in your environment to match thelocation of your Java installation. 我认真检查了JAVA_HOME的配置,发现没什么
今天我在一个操作两个数据库的SSH里 同时插入1条数据 报错 Illegal attempt to associate a collection with two open sessions 在这里有答案:http://fuaotech.iteye.com/blog/1298826 使用hibenate的merge方法代替save.update等方法. merge和saveOrUpdate方法区别在于:merge方法是把我们提供的对象转变为托管状态的对象:而saveOrUpdate则是把我们提供