1. mysql(http://www.mysql.com)mm.mysql-2.0.2-bin.jar
　　class.forname( "org.gjt.mm.mysql.driver" );
　　cn = drivermanager.getconnection( "jdbc:mysql://mydbcomputernameorip:3306/mydatabasename", susr, spwd );
　　2. postgresql(http://www.de.postgresql.org)pgjdbc2.jar
　　class.forname( "org.postgresql.driver" );
　　cn = drivermanager.getconnection( "jdbc:postgresql://mydbcomputernameorip/mydatabasename", susr, spwd );
　　
　　3. oracle(http://www.oracle.com/ip/deploy/database/oracle9i/)classes12.zip
　　class.forname( "oracle.jdbc.driver.oracledriver" );
　　cn = drivermanager.getconnection( "jdbc:oracle:thin:@mydbcomputernameorip:1521:orcl", susr, spwd );
　　
　　4. sybase(http://jtds.sourceforge.net)jconn2.jar
　　class.forname( "com.sybase.jdbc2.jdbc.sybdriver" );
　　cn = drivermanager.getconnection( "jdbc:sybase:tds:mydbcomputernameorip:2638", susr, spwd );
　　//(default-username/password: "dba"/"sql")
　　
　　5. microsoft sqlserver(http://jtds.sourceforge.net)
　　class.forname( "net.sourceforge.jtds.jdbc.driver" );
　　cn = drivermanager.getconnection( "jdbc:jtds:sqlserver://mydbcomputernameorip:1433/master", susr, spwd );
　　
　　6. microsoft sqlserver(http://www.microsoft.com)
　　class.forname( "com.microsoft.jdbc.sqlserver.sqlserverdriver" );
　　cn = drivermanager.getconnection( "jdbc:microsoft:sqlserver://mydbcomputernameorip:1433;databasename=master", susr, spwd );
　　
　　7. odbc
　　class.forname( "sun.jdbc.odbc.jdbcodbcdriver" );
　　connection cn = drivermanager.getconnection( "jdbc:odbc:" + sdsn, susr, spwd );