?? shoppingcar.java
字號:
package com.yc.service;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspWriter;
import com.yc.dao.ShoppingCarDao;
import com.yc.model.Flights;
import com.yc.model.Orderitems;
import com.yc.model.Orders;
import com.yc.model.Users;
public class ShoppingCar {
private ShoppingCarDao cardao;
public ShoppingCarDao getCardao()
{
return this.cardao;
}
public void setCardao(ShoppingCarDao cardao)
{
this.cardao=cardao;
}
public void list(HttpServletRequest request,JspWriter out) throws Exception
{
String tmp=(String)request.getParameter("page");
if(tmp!=null)
{
listpage(request,out,Integer.parseInt(tmp));
}
else
{
listpage(request,out,1);
}
}
public void listpage(HttpServletRequest request,JspWriter out,int page) throws IOException
{
Long id=(Long)request.getSession().getAttribute("curr_id");
List list=cardao.getAllOrders(id);
if(list==null)
{
out.print("read order fail");
return ;
}
int total=list.size();
int count=0;
Iterator it=list.iterator();
Orders order;
Users user;
Orderitems item;
Flights flight;
while(count<(page-1)*5&&it.hasNext())
{
it.next();
count++;
}
//輸出表格頭
count=0;
out.print("<table width=90% border=5 cellspacing=0>");
out.print("<tr align=center bgcolor=#3399FF><td width=20%>用戶名</td><td width=20%>航班</td>"
+"<td width=20%>票價</td>"+"<td width=30%>日期</td><td width=10%>退票</td></tr>");
while(it.hasNext()&&count<5)
{
order=(Orders)it.next();
user=(Users)order.getuser();
item=(Orderitems)order.getOrderitems();
flight=(Flights)order.getOrderitems().getId().getFlight();
out.print("<tr><td>"+user.getAccountNo()+"</td><td>"+flight.getFlightNo()+"</td><td>"+flight.getPrice()+"</td><td>"+item.getId().getDate()+"</td>");
//提供退票鏈接,該鏈接帶有一個參數order_id,表示要退票的ID
out.print("<td><a href=/fly/Retrieve.do?order_id="+order.getId()+">退票</a></td></tr>");
count++;
}
//根據當前頁數判斷是否提供上一頁和下一頁鏈接
out.print("<tr><td colspan=5 align=center>");
out.print("<table width=50% border=0 cellspacing=0><tr>");
if((page-1)>0)
{
out.print("<td width=50%><a href=/fly/pages/shoppingcar.jsp?page="+(page-1)+">上一頁</a></td>");
}
else
out.print("<td width=50%>上一頁</td>");
if((page-1)<(total/5))
out.print("td width=50%><a href=/fly/pages/shoppingcar.jsp?>page="+(page+1)+">下一頁</a></td>");
else
out.print("</tr></table></td></tr>");
out.print("</table>");
}
}
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