服务器未知运行时异常: 
### Error updating database.  Cause: java.sql.SQLSyntaxErrorException: Unknown column 'sign_type' in 'field list'
### The error may exist in com/casic/missiles/mapper/system/SystemSignMapper.java (best guess)
### The error may involve com.casic.missiles.mapper.system.SystemSignMapper.insert-Inline
### The error occurred while setting parameters
### SQL: INSERT INTO system_sign  ( id, system_type, sign_no, sign_name,  sign_director, sign_user_id, sign_type, minio_file_name )  VALUES  ( ?, ?, ?, ?,  ?, ?, ?, ? )
### Cause: java.sql.SQLSyntaxErrorException: Unknown column 'sign_type' in 'field list'
; bad SQL grammar []; nested exception is java.sql.SQLSyntaxErrorException: Unknown column 'sign_type' in 'field list'