解決java項目長時間未向mysql發送請求而致使鏈接斷開的問題

今天發如今寫的一個項目打開時時不時會報錯，錯誤信息大體以下：html ​​ ​​The last packet successfully received from the server was 9,291,267 milliseconds ago. The last packet sent successfully to the server was 9,291,324 milliseconds

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