areadao.java~1~

销售管理系统 随着我国国民经济的持续发展

package com.dao;

import com.tool.JDBConnection;
import java.util.*;
import java.sql.*;

public class AreaDao {
  private JDBConnection connection = null;
   List list=null;
 public AreaDao() {
   connection = new JDBConnection();
   this.connection.creatConnection(); //利用构造方法调用类中的对象对数据库创建连接
 }
public List areaSelectProvicne(){
list=new ArrayList();
  String sql="select csxx_sfmc from tb_area group by csxx_sfmc";
  ResultSet rs=connection.executeQuery(sql);
  while(rs.next()){}
  return list;

}
}