当我试图连接到sql数据库时,我遇到了一个问题:java.sql.SQLException: No suitable driver found for jdbc:derby://localhost:1527/mydbnamepublic class Servlet extends HttpServlet {
String url = "
Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: org.apache.derby.client.net.NetConnection40cannot be cast to com.mysql.jdbc.Connection at我在网上搜索了解决方案,并尝试替换:
jdbc:derby://localhost
我刚开始使用Hive,我遇到了问题,因为一开始我使用了derby,现在我想使用mysql,但是当我检查错误日志时,它仍然击中了derby --如何从derby切换到mysql?谢谢但最终却拥有了这个
SLF4J: Class path contains multipleConnecting to jdbc:derby:;databaseName=metastore_
DriverManager.getConnection(url, username, password);}
jdbc.url=jdbc:derby当我试图运行我的程序时,这是错误堆栈:
Exception in thread "main" java.sql.SQLException: No suitable driver found for jdbc:derby