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在写测试类的时候运行出现的错误

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

天使踩麻木

2018-06-22

源自：SpringBoot+MyBatis搭建迷你小程序

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天使踩麻木提问者
2018-06-22

这是错误类型

### Error querying database. Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!

### The error may exist in file [E:\android\target\classes\mapper\UserInfo.xml]

### The error may involve com.lee.android.dao.UserInfoDao.queryUserInfo

### The error occurred while executing a query

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!