springboot异常产生原因

DataIntegrityViolationException

1. Cause: java.sql.SQLException: Field ‘id’ doesn’t have a default value

org.springframework.dao.DataIntegrityViolationException: 
### Error updating database.  Cause: java.sql.SQLException: Field 'id' doesn't have a default value
### The error may exist in com/xxx/learning/mapper/LearningRecordMapper.java (best guess)
### The error may involve com.xxxi.learning.mapper.LearningRecordMapper.insert-Inline
### The error occurred while setting parameters
### SQL: INSERT INTO learning_record  ( lesson_id, section_id, user_id, moment )  VALUES  ( ?, ?, ?, ? )
### Cause: java.sql.SQLException: Field 'id' doesn't have a default value
; Field 'id' doesn't have a default value; nested exception is java.sql.SQLException: Field 'id' doesn't have a default value

原因是Model类中设置为自增，数据库中并没有设置

改成了IdType.ASSIGN_ID，使用雪花算法自动生成，成功解决。