解决mysql锁表问题com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock wait timeout exceede

1、查询是否锁表
show open tables where in_use>0;

2、查询进程
show processlist
查询到相对应的进程，然后 kill id

3、查看正在锁的事务
select * from information_schema.innodb_locks;

4、查看等待锁的事务
select * from information_schema.innodb_lock_waits;