基于SSM+Bootstrap的教务查询系统,是一个简单的教务查询系统,起初用于熟悉SSM的整合开发,使用技术 IOC容器:Spring Web框架:SpringMVC ORM框架:Mybatis 数据源:C3P0 日志:log4j 前端框架:Bootstrap 运行环境 jdk8+tomcat8+mysql+Eclipse+maven 项目技术(必填) spring+spring mvc+mybatis+bootstrap+jquery,系统是IDEA开发,也可修改为eclipse版本。欢迎下载。
220
stars
76
forks
source link
Could not get JDBC Connection #2
Open
yuezhao-zy opened 6 years ago
Could not get JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!
The error may exist in com/system/mapper/UserloginMapper.xml
The error may involve com.system.mapper.UserloginMapper.selectByExample
The error occurred while executing a query
可以帮忙解释下这是为啥吗?