作者回复: 连接闪断指的是在执行SQL语句的时候，会报类似下面的这些错误。具体的错误信息和使用的客户端驱动也有关系。 ERROR 2013 (HY000): Lost connection to MySQL server during query ERROR 4031 (HY000): The client was disconnected by the server because of inactivity. See wait_timeout and interactive_timeout for configuring this behavior. CommunicationsException: The last packet successfully received from the server was 15,032 milliseconds ago. The last packet sent successfully to the server was 15,035 milliseconds ago. is longer than the server configured value of 'wait_timeout'. Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.