兄弟們看過來!報錯說com.mysql.jdbc.Driver換成cj.jdbc的解決辦法
jdbc.driver=com.mysql.cj.jdbc.Driver
代碼替換完了之后還要在url中添加時區,否則還會報can't find application context錯誤
jdbc.url=jdbc:mysql://localhost:3306/demo?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false
2022-05-28
如果把jdbc依賴改了但還是報錯數據庫鏈接不上,并且mapper.xml文件中方法名沒寫錯,其他地方都沒寫錯,可以試一下在寫DataSourceConfiguration這個類時,把Value都配成顯式的,而不是用application.properties里面寫好的配置
附上當時解決問題參考的網頁:
https://programmerah.com/how-to-solve-jdbc-connection-error-in-spring-mvc-integration-38071/
2021-09-30
lz謝謝?。?/p>
2021-04-19
改了之后還是會有報錯Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: Connections could not be acquired from the underlying database!
2021-03-01
原因:mysql 5.x 與 mysql8.x 的區別