消息：Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested

最新推荐文章于 2025-01-18 14:30:29 发布

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最新推荐文章于 2025-01-18 14:30:29 发布

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分类专栏：各种报错

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在开发过程中遇到一个错误，Request processing failed，伴随着org.mybatis.spring.MyBatisSystemException。通常这个异常可能由于数据库错误引起，如Mapper文件的id错误或SQL语句错误。但经过检查，这些都不是问题所在。最终通过重启IDEA解决了问题，揭示这可能是由于缓存导致的500错误。

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HTTP Status 500 – Internal Server Error
Type 异常报告
消息 Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:
描述 服务器遇到一个意外的情况，阻止它完成请求。
Exception
org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### 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 mapper/UserMapper.xml
### The error may involve com.damin.dao.UserDao.findUserByUserName
### The error occurred while executing a query
### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested excepti