Class.forName(oracle.jdbc.driver.OracleDriver); 
conn=DriverManager.getConnection(jdbc:oracle:thin:@192.168.0.52:1521:qmcctj,"vipms","vipms123"); 
Statement s=myConn.createStatement(ResultSet.CONCUR_READ_ONLY,ResultSet.TYPE_FORWARD_ONLY);
我是这样写的速度不慢,你可以参考参考。