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Possibly consider using a shorter maxLifetime value.解决方法
【现象】
2022-08-24 14:54:49.130 WARN 174160 --- [nio-8082-exec-3] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@7df9ca28 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value. 2022-08-24 14:54:54.146 WARN 174160 --- [nio-8082-exec-3] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@7150aa4 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value. 2022-08-24 14:54:54.154 WARN 174160 --- [nio-8082-exec-2] com.zaxxer.hikari.pool.PoolBase : HikariPool-1 - Failed to validate connection com.mysql.cj.jdbc.ConnectionImpl@16c7f560 (No operations allowed after connection closed.). Possibly consider using a shorter maxLifetime value.【解决方法】
spring: datasource: driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC username: root password: root修改为：
spring: datasource: driver-class-name: com.mysql.cj.jdbc.Driver url: jdbc:mysql://localhost:3306/user?useUnicode=true&characterEncoding=utf-8&useSSL=true&serverTimezone=UTC username: root password: root hikari: connection-timeout: 10000 validation-timeout: 3000 idle-timeout: 60000 login-timeout: 5 max-lifetime: 60000 maximum-pool-size: 10 minimum-idle: 5 read-only: false本文标签： 解决方法PossiblyshortermaxLifetime
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