I have provided values for the JDBC driver class, the database user name, and a JDBC URL to connect to the database, in which you have already created the users and usergroup tables.
还指定了JDBC驱动程序类、数据库用户名和连接数据库（在这个数据库中已经创建了users 和usergroup表）所用的 JDBCURL。
I have provided values for the JDBC driver class, the database user name, and a JDBC URL to connect to the database, in which you have already created the users and usergroup tables.
还指定了JDBC驱动程序类、数据库用户名和连接数据库（在这个数据库中已经创建了users 和usergroup表）所用的 JDBCURL。
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