李志涛的专栏

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped State

1.InnoDB数据库死锁

1.myBatis连接MySQL报异常：No operations allowed after connection closed.Connection was implicitly closed 2.No operations allowed after connection closed异常的解决方案 3.使用Mybatis时请注意这两个参数，否则会让你的数据库连接爆掉