错误
Servlet.service() for servlet [springmvc] in context with path [/ssmtest] threw exception [Request processing failed; nested exception is org.springframework.dao.DataIntegrityViolationException:
Error updating database. Cause: java.sql.SQLException: Field ‘empno’ doesn’t have a default value
原因
数据库建表时主键id未设为自增列的错误，只要在Auto Incr?下勾上就可以对数据库做数据添加插入操作了。
