orderid.java

网上购物源代码

package com.chinaaccpDao;

import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.Statement;

public class OrderID {

	public int GetOrderID(String ordernum)
	{
		int id = 0;
		Connection con = null;
		try {
			con = ConnectionLee.GetCon();
			Statement st = con.createStatement();
			String sql = "select id from orderlist where orderlistnum='"+ordernum+"'";
			ResultSet rs = st.executeQuery(sql);
			if(rs.next())
			{
				id = rs.getInt(1);
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
		return id;
	}
}