mysql的几个参数讲的305db是数据库的名字
driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/jd1305db?useUnicode=true&characterEncoding=utf8
user=root
pwd=
oracle数据库的连接orcl是数据库的名字
driver=oracle.jdbc.driver.OracleDriver
url=jdbc:oracle:thin:@localhost:1521:orcl
user=demo
pwd=