开张了

　　终于在博客园开了空间，意味着，再也不用在Sohu Blog里粘代码了

　　先粘两段爽一下：

using System;
using System.Web;
using System.Collections;
using System.Web.Services;
using System.Web.Services.Protocols;
using System.Collections.Generic;
using System.Web.Caching;
using System.Text;

using IndieCommon;
using IndieORM;
using IndieDB;
using IndieLogic;

/**//// <summary>
/// Vote 获取当前调查
/// 的投票选项统计结果
/// </summary>
[WebService(Namespace = "http://localhost/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
public class Vote : System.Web.Services.WebService
{

    public Vote()
    {
        
        //如果使用设计的组件，请取消注释以下行 
        //InitializeComponent(); 
    }

    [WebMethod]
    public string GetVoteStatus()
    {
        // 缓存的键名
        string key = "CurrInvest";
        // 存储
        addInvestToCache(key);

        // 从缓存中获取
        Invest invest = (Invest)HttpContext.Current.Cache[key];

        返回结果#region 返回结果

        // 如果当前无调查，则返回空串
        if (invest == null)        
            return string.Empty;      

        // 计算返回统计
        // 格式： 选项名称，被投次数，百分比|选项名称，被投次数，百分比.
        int total = 0;
        foreach (InvertObject investObj in invest.InvestList)
        {
            total += investObj.Total;       // 总计票数     
        }

        StringBuilder sb = new StringBuilder();
        foreach (InvertObject investObj in invest.InvestList)
        {
            // 百分比
            double per = (Convert.ToDouble(investObj.Total) / Convert.ToDouble(total))
                * 100;
           
            sb.Append(string.Format("{0},{1},{2:F1}%|",investObj.Title,investObj.Total
                ,per));
        }
        
        return sb.ToString().TrimEnd(new char[]{'|'});

        #endregion
    }

    /**//// <summary>
    /// 缓存被删除回调方法
    /// </summary>
    /// <param name="key">键</param>
    /// <param name="value">值</param>
    /// <param name="reason">原因</param>
    private void removalCallBack(string key, object value, CacheItemRemovedReason reason)
    {
        // SQL依赖项被改变
        if (reason == CacheItemRemovedReason.DependencyChanged)
        {
            // 投票项被删除
            if (key == "CurrInvest")
            {
                addInvestToCache("CurrInvest");
            }
        }
    }

    /**//// <summary>
    /// 在缓存中插入最近一期INVEST对象
    /// </summary>
    /// <param name="key">键</param>
    private void addInvestToCache(string key)
    {
        // 调查操作对象
        InvestOperation io = new InvestOperation();

        // 进行数据缓存
        if (HttpContext.Current.Cache[key] == null)
        {
            // 获取当前期调查            
            Invest currInvest = io.GetLastInvest();

            if (currInvest != null)
            {
                // 数据库和表名
                string datatabase = "Indie";
                string tablename = "TB_INVEST";
                SqlCacheDependency dependency = new SqlCacheDependency(datatabase,tablename);
                // 回调
                CacheItemRemovedCallback removal = new CacheItemRemovedCallback(removalCallBack);

                // SQL SERVER 依赖轮询缓存
                HttpContext.Current.Cache.Insert("CurrInvest", currInvest, dependency
                    ,DateTime.MaxValue,Cache.NoSlidingExpiration,CacheItemPriority.Normal,
                    removal);
            }
        }
    }
}