Mysql-springjdbc connects to the database, but there is no connection for more than 8 hours. What should I do if the connection to the database is disconnected?

mysqljavaspringjdbc

As mentioned, the parameter autoReconnect=true seems to be inoperable after mysql5, so sometimes errors will occur when accessing the interface. PreparedStatementCallback
The last packet successfully received from the server was 934,535,670 milliseconds ago. The last packet sent successfully to the server was 934,535,672 milliseconds ago. is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values ​​for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem
How to solve this problem

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