Java 使用jdbc:odbc 建立无源连接access数据库

package puyue;
import java.sql.*;
import java.io.*;
import java.util.*;

public class accesslink{

private String url="jdbc:odbc:driver={Microsoft Access Driver (*.mdb)};dbq=e:\\java\\puyue.mdb";
ResultSet rec;
public accesslink()
    {
     try
     {
       Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
       }catch(java.lang.ClassNotFoundException e){
        System.err.print("类加载错误"+e.getMessage());
      }     
    }
   public ResultSet executequery(String strsql)
       {
        rec=null;
        try
          {
            Connection c=DriverManager.getConnection(url);
            Statement s=c.createStatement();
            rec=s.executeQuery(strsql);
               while (rec.next()) {
                 System.out.println(rec.getString(3));
               }
             rec.close();
           }
          catch(SQLException e)
          {
           System.err.print("数据库连接错误"+e.getMessage());
          }
        return rec;  
       }  
public static void main(String[] args)
     {
     accesslink ss=new accesslink() ;
     ss.executequery("select * from user") ;
  
   }   
}