driverClassName:com.microsoft.sqlserver.jdbc.SQLServerDriver
url:jdbc:sqlserver://localhost:1434;DatabaseName=test;SelectMethod=cursor
url:jdbc:sqlserver://localhost:1434;DatabaseName=test;SelectMethod=cursor
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mydb";
//mydb为数据库
String user="sa";
String password="";
Connection conn= DriverManager.getConnection(url,user,password);