org.apache.ibatis.exceptions.PersistenceException:
### Error querying database. Cause: org.apache.ibatis.executor.ExecutorException: No constructor found in com.tszhao.dao.User matching [java.lang.Integer, java.lang.String, java.lang.Integer]
### The error may exist in com/tszhao/mapper/UserMapper.java (best guess)
### The error may involve com.tszhao.mapper.UserMapper.selectUser
### The error occurred while handling results
### SQL: select * from users where id=?
### Cause: org.apache.ibatis.executor.ExecutorException: No constructor found in com.tszhao.dao.User matching [java.lang.Integer, java.lang.String, java.lang.Integer]
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)
...这是构造方法忘记写时报的错，虽然很基础，但是不要初心大意。对于这种错误，应尽量避免，所谓的代码质量就是从这些细节上提高的。