20d1a52ea53d001d1504fdb15ccf7983

自己做的一个火车票售票网站是课程设计 用的是servlet+jsp 数据库是ms

package com.daoImpl;

import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.List;

import com.dao.LiuyanDAO;
import com.jdbc.DataBaseConnection;

public class LiuyanDAOImpl implements LiuyanDAO {

	public List selectAll() {
		DataBaseConnection dbc =new DataBaseConnection();
		PreparedStatement psmt =null;
		ResultSet rs =null;
		String sql =null;
		
		
		
		
		
		
		return null;
	}

}