public static void main(String[] args) {
        // TODO Auto-generated method stub
        String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; // 加载JDBC驱动
        String dbURL = "jdbc:sqlserver://localhost:1433;integratedSecurity=true;DatabaseName=Test"; // 连接服务器和数据库sample
        String userName = "sa"; // 默认用户名
        String userPwd = "luohai"; // 密码
        Connection dbConn;

        try {
            Class.forName(driverName);
            dbConn = DriverManager.getConnection(dbURL, userName, userPwd);
            // dbConn = DriverManager.getConnection(dbURL);
            System.out.println("Connection Successful!"); // 如果连接成功