摘要：
https://blog.csdn.net/qq_42969716/article/details/108409347?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EC 阅读全文
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https://blog.csdn.net/shi_hong_fei_hei/article/details/115585793?utm_medium=distribute.pc_relevant.none-task-blog-2~default~baidujs_baidulandingword~d 阅读全文
摘要：
锁等待超时，尝试重启事务 Mysql数据库采用InnoDB模式，默认参数:innodb_lock_wait_timeout设置锁等待的时间是50s，一旦数据库锁超过这个时间就会报错 https://blog.csdn.net/java__project/article/details/1001375 阅读全文