常用JDBC连接方法

　　 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 );