class.forname("com.microsoft.sqlserver.jdbc.sqlserverdriver");
//class.forname("sun.jdbc.odbc.jdbcodbcdriver");//1.加载jdbc.odbc桥驱动程序.
connection con=drivermanager.getconnection("jdbc:microsoft:sqlserver://localhost;databasename=atm;","user=sa;","password=123456");
对吗?