mssql java 运行

public void rlgy() throws IOException {
        Statement sql;
        ResultSet rs;
        String driverName = "com.microsoft.sqlserver.jdbc.SQLServerDriver";   //加载JDBC驱动  
        String dbURL = "jdbc:sqlserver://localhost:1433; DatabaseName=a";   //连接服务器和数据库sample  
        String userName = "root";   //用户名  
        String userPwd = "123";   //密码  
        Connection dbConn;  
        try {  
            Class.forName(driverName);  
            dbConn = DriverManager.getConnection(dbURL, userName, userPwd); 
            sql=dbConn.createStatement();
            rs=sql.executeQuery("select id,name,inNum,outNum,time from [a].[dbo].[test]");
            System.out.println("Connection Successful!");   //如果连接成功 控制台输出Connection Successful! 
        while(rs.next())
        {
            System.out.println(rs.getString(1)+rs.getString(2)+rs.getString(3)+rs.getString(4)+rs.getString(5));
        }
        dbConn.close();
        } catch (Exception e) {  
            logger.info("获取人流感应的数据...", e);
            e.printStackTrace();  
        }  
    }