常见数据库driverClassname和url #Properties file with JDBC-related settings.###HSQLDB###jdbc.driverClassName=org.hsqldb.jdbcDriver#jdbc.url=jdbc:hsqldb:hsql://localhost:9001/bookstore#jdbc.username=sa#jdbc.password=###MySQL 5###jdbc.driverClassName=com.mysql.jdbc.Driver jdbc.url=jdbc:mysql://lo...