使用Connector J連接MySQL數據庫，程序運行較長時間后就會報以下錯誤： Communications link failure，The last packet successfully received from the server was millisecond ago. The last packet successfully sent to the server was mi ...
2017-07-26 14:37 0 3770 推薦指數：
異常錯誤：Communications link failure The last packet successfully received from the server was 3,544 milliseconds ago 解決方法： 找到application-druid.yml文件 ...
出現這種錯誤的大致情況如下： 1、數據庫連接長時間未使用，斷開連接后，再去連接出現這種情況。這種情況常見於用連接池連接數據庫出現的問題 2、數據庫連接的后綴參數問題 針對上述兩種情況，解決方案如下 ...
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure；；The last packet sent successfully to the server ...
Communications link failure解決方法，我借鑒的別人的，延長MySQL的連接時間 #查詢連接的時間 show global variables like 'wait_timeout'; #修改連接的時間set global wait_timeout=604800; ...
# #錯誤日志 2016-11-10 16:19:20,834 ERROR [org.quartz.core.JobRunShell] - Job DEFAULT.jobtask threw a ...
轉載：https://blog.csdn.net/yaheng100/article/details/87875474 最近接手了一個SpringBoot+Mybatis+Mysql的JAVA爬蟲項 ...
本地升級了下MySQL的版本，從5.6升為5.7，數據文件直接拷貝的，項目查詢數據庫報錯： Could not retrieve transation read-only status server The last packet successfully received from ...
問題1： 連接本地mysql，報如下錯誤 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from ...
