db#(No operations allowed after connection closed.)
Failed to validate connection com.mysql.jdbc.JDBC4Connection@75dc8e4c (No operations allowed after connection closed.). Possibly consider using ...
原文：SpringBoot警告-springboot2.0 hikaricp - failed to valid... no operations allowed after connection closed.
SpringBoot警告 springboot . hikaricp failed to valid... no operations allowed after connection closed. 墨問蒼生 首先在mysql中執行 后查閱資料發現不是這個問題 修改 etc my.cnf文件，添加或修改如下代碼 問題解決 ...
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com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed. 解決
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com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection closed.
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Mysql No operations allowed after connection closed
問題 Mysql服務器默認的“wait_timeout”是8小時，也就是說一個connection空閑超過8個小時，Mysql將自動斷開該connection。 可以用show global variables LIKE'wait_timeout';查看mysql的等待時間。 這就是問題 ...
MySQLNonTransientConnectionException: No operations allowed after connection closed
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### Error querying database. Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operations allowed after connection ...