using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.Caching;
namespace SpaceTime
{
/// <summary>
/// VsCache 的摘要说明
/// </summary>
public class STCache
{
public STCache()
{
//
// TODO: 在此处添加构造函数逻辑
//
}
private static void onRemove(
string strIdentify,
object userInfo, CacheItemRemovedReason reason)
{
}
//建立回调委托的一个实例
CacheItemRemovedCallback callBack =
new CacheItemRemovedCallback(onRemove);
/// <summary>
/// 创建缓存对象（默认24小时缓存）
/// </summary>
/// <param name="name">键名</param>
/// <param name="value">键值</param>
public static void CreateCache(
string name,
object value)
{
CreateCache(name, 24, value);
}
/// <summary>
/// 创建缓存对象(指定缓存小时)
/// </summary>
/// <param name="name">键名</param>
/// <param name="hours">缓存时间(小时)</param>
/// <param name="value">键值</param>
public static void CreateCache(
string name,
double hours,
object value)
{
//建立回调委托的一个实例
CacheItemRemovedCallback callBack =
new CacheItemRemovedCallback(onRemove);
//以Identify为标志，将userInfo存入Cache
HttpContext.Current.Cache.Insert(name, value,
null,
System.DateTime.Now.AddHours(hours),//当前指定为24小时,7*24=168
System.Web.Caching.Cache.NoSlidingExpiration,
System.Web.Caching.CacheItemPriority.Default,
callBack);
}
/// <summary>
/// 读取缓存对象结果
/// </summary>
/// <param name="name">键名</param>
/// <returns></returns>
public static object GetCache(
string name)
{
if (ExistCache(name))
{
return HttpContext.Current.Cache[name];
}
else
{
return null;
}
}
/// <summary>
/// 判断存储的"一键一值"值是否还存在（有没有过期失效或从来都未存储过）
/// </summary>
/// <param name="name"></param>
/// <returns></returns>
public static bool ExistCache(
string name)
{
if (HttpContext.Current.Cache[name] !=
null)
{
return true;
}
else
{
return false;
}
}
/// <summary>
/// 删除缓存数据
/// </summary>
/// <param name="name"></param>
public static void Remove(
string name)
{
try
{
HttpContext.Current.Cache.Remove(name);
}
catch (Exception exp)
{
//
}
}
}
}
private void BindItemCats()
{
try
{
int pageIndex = DNTRequest.GetInt(
"PageNo",
1);
List<TaobaokeItem> items =
new List<TaobaokeItem>();
//定义返回商品泛型对象
string totalPageNum =
"0";
if (!SpaceTime.STCache.ExistCache(
"ItemList-" + cid +
"_" +
pageIndex))
{
TopXmlRestClient client =
new TopXmlRestClient(
"http://gw.api.taobao.com/router/rest",
"12150539",
"f1e413524f3bec524c7677aba2ab43f3");
DynamicTopRequest req =
new DynamicTopRequest(
"taobao.taobaoke.items.get");
req.AddTextParameter("fields",
"iid,num_iid,title,nick,pic_url,price,click_url,commission,commission_rate,commission_num,commission_volume,seller_credit_score,item_location,volume,shop_click_url,total_results");
req.AddTextParameter("nick",
"andyli783");
if (cid !=
0)
{
req.AddTextParameter("cid", cid);
}
req.AddTextParameter("keyword", DNTRequest.GetString(
"key"));
req.AddTextParameter("page_no", pageIndex);
req.AddTextParameter("page_size",
18);
req.AddTextParameter("start_price", DNTRequest.GetString(
"sc"));
req.AddTextParameter("end_price", DNTRequest.GetString(
"ec"));
req.AddTextParameter("area", DNTRequest.GetString(
"ac"));
req.AddTextParameter("sort", DNTRequest.GetString(
"sort"));
string rsp =
client.GetResponse(req);
Parser parser =
new Parser();
//定义解析XML对象
parser.XmlToObject2<TaobaokeItem>(rsp,
"taobaoke_items_get",
"taobaoke_items/taobaoke_item", items);
SpaceTime.STCache.CreateCache("ItemList-" + cid +
"_" + pageIndex,
24, items);
XmlDocument xml =
new XmlDocument();
xml.LoadXml(rsp);
XmlElement root =
xml.DocumentElement;
XmlNode xn = root.SelectSingleNode(
"//total_results");
if (xn !=
null)
{
SpaceTime.STCache.CreateCache("ItemListPage-" + cid +
"_" + pageIndex,
24, xn.InnerText);
totalPageNum =
xn.InnerText;
}
}
else
{
items = SpaceTime.STCache.GetCache(
"ItemList-" + cid +
"_" + pageIndex)
as List<TaobaokeItem>
;
totalPageNum = SpaceTime.STCache.GetCache(
"ItemListPage-" + cid +
"_" +
pageIndex).ToString();
}
hrrPage.RecordCount =
int.Parse(totalPageNum);
hrrPage.LinkPageUrl =
Request.Url.ToString().Trim();
dlItemList.DataSource = items;
//&sc={2}&ec={3}
dlItemList.DataBind();
if (items.Count <
1)
{
wushuju =
"<div class=\"tijiao\">很抱歉，没有找到与“<strong><font color=\"#FF0000\">" + DNTRequest.GetString(
"key") +
"</font></strong>”相关的宝贝</div>";
hrrPage.Visible =
false;
}
else
wushuju =
"";
}
catch (Exception)
{
Utils.ShowAlert("类型和关键字必须有一个", Page);
}
}
转载于:https://www.cnblogs.com/daixingqing/archive/2012/11/13/2768424.html
