chenxingde的博客

前台页面出现如下异常 com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use ne

（1）在方法上加上事物，但是，不会回滚： @Transactional @Synchronized public String vipCancel(Long userId){ try { SuUser ud = suUserMapper.selectByPrimaryKey(userId); }ca...