MySQL auttoReconnect

Posted 2020-09-28 规格严格-功夫到家-哈工大威海人

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 866,595,528 milliseconds ago.  The last packet sent successfully to the server was 866,595,528 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.