碼上快樂

相關內容    簡體    繁體

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


免責聲明！

本站轉載的文章為個人學習借鑒使用，本站對版權不負任何法律責任。如果侵犯了您的隱私權益，請聯系本站郵箱yoyou2525@163.com刪除。



猜您在找 Could not get JDBC Connection; nested exception is java.sql.SQLException: ${jdbc.driver} JDBC報錯 消息 Could not get JDBC Connection; nested exception is java.sql.SQLException: Unknown system variable 'tx_isolation' mybatis的錯誤org.springframework.jdbc.CannotGetJdbcConnectionException: Could not get JDBC Connection; nested exception is java.sql.SQLException: Cannot load JDBC driver class '${db.driverClassName}' 記Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could no Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: Connectio Failed to obtain JDBC Connection; nested exception is java.sql.SQLException 報錯： Could not open JDBC Connection for transaction; nested exception is java.sql.SQLException: An attempt by a client to checkout a Connection has timed out. 數據庫連接超時 mysql 錯 Could not open JDBC Connection for transaction; nested exception is java.sql.SQLExceptio Could not get JDBC Connection; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: HTTP Status 500 - JDBC exception on Hibernate data access: SQLException for SQL [n/a]; SQL state [HY000]; error code [1364]; could not execute statement; nested exception is org.hibernate.exception.Ge
 
粵ICP備18138465號   © 2018-2025 CODEPRJ.COM