常见的数据库url
DB2:
driverClassName:com.ibm.db2.jcc.DB2Driver url:jdbc:db2://localhost:50000/sample
Oracle:
driverClassName: oracle.jdbc.driver.OracleDriver url:jdbc:oracle:thin:@localhost:1521:orcl
MySql:
driverClassName: com.mysql.jdbc.Driver url:jdbc:mysql://localhost:3306/test
