解決mysql鎖表問題com.mysql.cj.jdbc.exceptions.MySQLTransactionRollbackException: Lock wait timeout exceede

1、查詢是否鎖表
show open tables where in_use>0;

2、查詢進程
show processlist
查詢到相對應的進程，然后 kill id

3、查看正在鎖的事務
select * from information_schema.innodb_locks;

4、查看等待鎖的事務
select * from information_schema.innodb_lock_waits;