java jdbc 几种关系型数据库的连接 url 和 driver_class

oracle:

    driverClass：oracle.jdbc.OracleDriver

    url：jdbc:oracle:thin:@127.0.0.1:1521:dbname

mysql:

　driverClass：com.mysql.jdbc.Driver

　  url: jdbc:mysql://localhost:3306/test?characterEncoding=utf8&useSSL=true   注意: 高版本的 mysql 需要显示指定 useSSL

DB2

    driverClass：com.ibm.db2.jcc.DB2Driver

    url：jdbc:db2://127.0.0.1:50000/dbname

sybase

    driverClass：com.sybase.jdbc.SybDriver

    url：jdbc:sybase:Tds:localhost:5007/dbname

PostgreSQL

    driverClass：org.postgresql.Driver

    url：jdbc:postgresql://localhost/dbname

Sql Server

    driverClass：com.microsoft.sqlserver.jdbc.SQLServerDriver

    url：jdbc:sqlserver://localhost:1433; DatabaseName=dbname