兄弟們看過來！報(bào)錯(cuò)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(shí)區(qū)，否則還會(huì)報(bào)can't find application context錯(cuò)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(bào)錯(cuò)數(shù)據(jù)庫鏈接不上，并且mapper.xml文件中方法名沒寫錯(cuò)，其他地方都沒寫錯(cuò)，可以試一下在寫DataSourceConfiguration這個(gè)類時(shí)，把Value都配成顯式的，而不是用application.properties里面寫好的配置
@Value("com.mysql.cj.jdbc.Driver") private?String?jdbcDriver; @Value("jdbc:mysql://localhost:3306/one_text?serverTimezone=UTC&useUnicode=true&characterEncoding=utf8&useSSL=false") private?String?jdbcUrl; @Value("root") private?String?jdbcUsername; @Value("123456") private?String?jdbcPassword;附上當(dāng)時(shí)解決問題參考的網(wǎng)頁：
https://programmerah.com/how-to-solve-jdbc-connection-error-in-spring-mvc-integration-38071/
2021-09-30
lz謝謝！！
2021-04-19
改了之后還是會(huì)有報(bào)錯(cuò)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(qū)別