我有这个错误: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException:
The last packet successfully receivedincreasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.但是我不知道
increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.- - - - - - - - - -| execSQL in com.mysql</e