输出数据库select的结果出错，哪位帮我看看

package com.csd.DB;import java.sql.*;public class TestConection{
    public TestConection() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }    public static void main(String[] args)
    {
        String driverName,url,uid,pwd,DatabaseName="jspdev";
        driverName = "com.microsoft.jdbc.sqlserver.SQLServerDriver";  //定义数据库驱动名
        url = "jdbc:microsoft:sqlserver://127.0.0.1:1433;DatabaseName="+DatabaseName; //定义url；
        uid = "jspdev";
        pwd = "jspdev";        try{
            Class.forName(driverName);  //加载mssql数据库驱动；
        }
        catch (Exception e) {
            e.printStackTrace();
        }
       try{
           Connection cn = DriverManager.getConnection(url, uid, pwd);//连接数据库；
           String sqlSelect,sqlInsert;
           Statement sm = cn.createStatement();
           sqlSelect = "select * from user_info";
           sqlInsert = "insert into user_info(userid,name,phone,street,city,banneropt,userType,cardNumber,cardtype,userLogCount,state,zipCode,fanvcategory,password) values('sd','王d华','4031259','xingsha','changsha',9,2,'239855',1,4,'5632','410600','adsf','sasdf');";
           ResultSet rs= sm.executeQuery(sqlSelect); // 执行数据查询语句（select）
           sm.executeUpdate(sqlInsert); // 执行数据更新语句（delete、update、insert、drop等）statement.close();
           int i = 1;
           while(rs.next()){
               System.out.print(rs.getString(i)+" ");
               //System.out.print(rs.getString(2)+" ");
               //System.out.println(rs.getString(3));
           }
        
           rs.close();
           sm.close();
           cn.close();
       }
       catch(SQLException ex){
           System.out.println("sql error code:"+ex.getErrorCode());
           System.out.println("sql error message:"+ex.getMessage());
       }
    }    private void jbInit() throws Exception {
    }
}
错误提示：
sql error code:0sql error message:[Microsoft][SQLServer 2000 Driver for JDBC]Object has been closed.
只要我把这一段去掉就可以执行，为什么就是不能输出结果呢？
 int i = 1;
           while(rs.next()){
               System.out.print(rs.getString(i)+" ");
               //System.out.print(rs.getString(2)+" ");
               //System.out.println(rs.getString(3));
           }