商品浏览系统之商品详细信息显示页面实现

一 代码

<%@  page  language = "java"  import = "java.util.*"  contentType = "text/html; charset=utf-8"  %>

<%@  page  import = "entity.Items" %>

<%@  page  import = "dao.ItemsDAO" %>

<%

String path = request.getContextPath();

String basePath = request.getScheme()+ "://" +request.getServerName()+ ":" +request.getServerPort()+path+ "/" ;

%>

 

<! DOCTYPE  HTML  PUBLIC  "-//W3C//DTD HTML 4.01 Transitional//EN">

< html >

   < head >

     < base  href = " <%= basePath %> " >

   

     < title > My JSP 'details.jsp' starting page </ title >

   

         < meta  http-equiv = "pragma"  content = "no-cache" >

         < meta  http-equiv = "cache-control"  content = "no-cache" >

         < meta  http-equiv = "expires"  content = "0" >    

         < meta  http-equiv = "keywords"  content = "keyword1,keyword2,keyword3" >

         < meta  http-equiv = "description"  content = "This is my page" >

         <!--

        <link  rel =" stylesheet " type="text/ css "  href ="styles.css">

        -->

     < style  type = "text/css" >

            div {

               float : left ;

               margin-left :  30px ;

               margin-right : 30px ;

               margin-top :  5px ;

               margin-bottom :  5px ;

           }

            div  dd {

               margin : 0px ;

               font-size : 10pt ;

           }

            div  dd .dd_name

           {

               color : blue ;

           }

            div  dd .dd_city

           {

               color : #000 ;

           }

         </ style >

   </ head >

 

   < body >

     < h1 > 商品详情 </ h1 >

     < hr >

     < center >

       < table  width = "750"  height = "60"  cellpadding = "0"  cellspacing = "0"  border = "0" >

         < tr >

           <!-- 商品详情 -->

           <%

             ItemsDAO itemDao =  new  ItemsDAO();

             Items item = itemDao.getItemsById(Integer.parseInt(request.getParameter( "id" )));

              if (item!= null )

             {

           %>

           < td  width = "70%"  valign = "top" >

              < table >

                < tr >

                  < td  rowspan = "4" >< img  src = "images/ <%= item.getPicture() %> "  width = "200"  height = "160" /></ td >

                </ tr >

                < tr >

                  < td >< B > <%= item.getName()  %> </ B ></ td >

                </ tr >

                < tr >

                  < td > 产地： <%= item.getCity() %> </ td >

                </ tr >

                < tr >

                  < td > 价格： <%= item.getPrice()  %> ￥ </ td >

                </ tr >

              </ table >

           </ td >

           <%

            }

           %>

           <%

              String list = "" ;

               //从客户端获得Cookies集合

              Cookie[] cookies = request.getCookies();

               //遍历这个Cookies集合

               if (cookies!= null &&cookies.length>0)

              {

                       for (Cookie c:cookies)

                      {

                           if (c.getName().equals( "ListViewCookie" ))

                          {

                             list = c.getValue();

                          }

                      }

                  }

             

              list+=request.getParameter( "id" )+ "," ;

               //如果浏览记录超过1000条，清零.

              String[] arr = list.split( "," );

               if (arr!= null &&arr.length>0)

              {

                   if (arr.length>=1000)

                  {

                      list= "" ;

                  }

              }

              Cookie cookie =  new  Cookie( "ListViewCookie" ,list);

              response.addCookie(cookie);

         

           %>

           <!-- 浏览过的商品 -->

           < td  width = "30%"  bgcolor = "#EEE"  align = "center" >

              < br >

              < b > 您浏览过的商品 </ b >< br >

              <!-- 循环开始 -->

              <%

                ArrayList<Items> itemlist = itemDao.getViewList(list);

                 if (itemlist!= null &&itemlist.size()>0 )

                {

                   System.out.println( "itemlist.size=" +itemlist.size());

                    for (Items i:itemlist)

                   {

                        

              %>

              < div >

              < dl >

                < dt >

                  < a  href = "details.jsp?id= <%= i.getId() %> " >< img  src = "images/ <%= i.getPicture()  %> "  width = "120"  height = "90"  border = "1" /></ a >

                </ dt >

                < dd  class = "dd_name" > <%= i.getName()  %> </ dd >

                < dd  class = "dd_city" > 产地: <%= i.getCity()  %> &nbsp;&nbsp; 价格: <%= i.getPrice()  %>  ￥  </ dd >

              </ dl >

              </ div >

              <%

                   }

                }

              %>

              <!-- 循环结束 -->

           </ td >

         </ tr >

       </ table >

     </ center >

   </ body >

</ html >

 

二 运行结果