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spring | 踩坑 | Could not get JDBC Connectionl nested exception is java.sql.SQLException...

本文轉載自   查看原文   2021-05-28 22:51   2330    04解決方案/ JavaEE/ IntelliJ-IDEA/ Spring/ MySQL_Driver

問題描述

使用IDEA用maven管理項目,使用spring+jdbc連接數據庫,最后編寫測試類運行后
出現如下錯誤

問題重現

Could not get JDBC Connection nested exception is java.sql.SQLException...

Connections could not be acquired from the underlying database!

image

問題分析

根據網絡上的解答教程,可知此問題的原因是
mysql數據庫驅動和mysql數據庫版本不一致,具體配置是
mysql為V 8.0.21,mysql-connector-drive是V 5.1.6

問題解決

使用maven 修改配置文件,將mysql-connector版本改為8.0.21即可

⚠️ 注: 在新版的驅動中
新增了cj包

image
直接使用jdbc下的Driver也行

參考


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