java - 如何在java中使用服务名连接到oracle

Question

我需要在java中连接到oracle db

Connection con = DriverManager.getConnection("jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=on)(ADDRESS=(PROTOCOL=TCP)(HOST=hostname)(PORT=1521))(CONNECT_DATA=(SERVICE_NAME=servicename)))");

我得到以下错误

java.sql.SQLNonTransientConnectionException: Cannot load connection class because of underlying exception: com.mysql.cj.core.exceptions.WrongArgumentException: Malformed database URL, failed to parse the main URL sections.