转：各种数据库默认端口总结，防止连接失效，特备份。
Oracle
| driver | oracle.jdbc.driver.OracleDriver |
| url | jdbc:oracle:thin:@ip:port:dbname |
| port | 1521 |
SQL Server
| driver | com.microsoft.jdbc.sqlserver.SQLServerDriver |
| url | jdbc:microsoft:sqlserver://ip:port;DatabaseName=<dbname> |
| port | 1433 |
MySQL
| driver | org.gjt.mm.mysql.Driver |
| url | jdbc:mysql://ip:port/dbname |
| port | 3306 |
PointBase
| driver | com.pointbase.jdbc.jdbcUniversalDriver |
| url | jdbc:pointbase:server://ip:port/dbname |
| port | 9092 |
DB2
| driver | com.ibm.db2.jdbc.app.DB2Driver |
| url | jdbc:db2://ip:port/dbname |
| port | 5000 |
MongoDB
默认端口：27017
Redis
默认端口：6379
memcached
默认端口：11211