3中常用数据库的url和driver

mysql:
jdbc:mysql://localhost:3306/test
com.mysql.jdbc.Driver(Tomcat5|Tomcat5.5)
com.mysql.jdbc.jdbc2.optional.MysqlConnectionPoolDataSource(WebLogic)

oracle
jdbc:oracle:thin:@localhost:1521:mydb
oracle.jdbc.OracleDriver(Tomcat5|Tomcat6)
oracle.jdbc.driver.OracleDriver(Tomcat5.5)
oracle.jdbc.pool.OracleDataSource(Sun Java Application Server)

sql server
jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=master
com.microsoft.jdbc.sqlserver.SQLServerDriver