server端口號是多少？

SQL Server默認端口號為：1433

URL:"jdbc:microsoft:SQL Server://localhost:1433;DatabaseName=dbname"

DRIVERNAME:"com.microsoft.jdbc.SQL Server.SQL ServerDriver";

MySQL 默認端口號為：3306

URL:jdbc:MySQL://localhost:3306/test? user=root&password=&useUnicode=true&characterEncoding=gbk

DRIVERNAME:"com.MySQL.jdbc.Driver";

Oracle 默認端口號為：1521

URL:"jdbc:Oracle:thin:@localhost:1521:orcl ";

DRIVERNAME:"Oracle.jdbc.driver.OracleDriver