mysql报错：Cause: com.mysql.jdbc.PacketTooBigException

报错信息： Error updating database. Cause: com.mysql.jdbc.PacketTooBigException: Packet for query is too large (5872 > 1024). You can change this value on the server by setting the max_allowed_packet‘ variable.
  解决办法：

进入MYSQL  

输入show variables like ‘%max_allowed_packet%‘;

在MYSQL里输入set global max_allowed_packet = 2*1024*1024*10;（20M）

原文地址：

https://blog.csdn.net/qq_33864656/article/details/75006841

注意：Tomcat要重启，mysql不用重启