Communications link failure The last packet successfully received from the serve 彭珂个人网 2021-08-10 623 阅读1分钟 MySQL数据库报错:# Communications link failure The last packet successfully received from the server was 29,623,329 m 这个问题一般出现在，长时间未使用mysql连接导致mysql那边已经断开，但连接池还以为是正常连接中，所以去访问则会报错。 解决很简单，如果用c3p0 那么直接加：
