USE [OA]GO/****** Object:  StoredProcedure [dbo].[spGetByPage]    Script Date: 11/05/2014 13:01:37 ******/SET ANSI_NULLS ONGOSET QUOTED_IDENTIFIER ONGOALTER PROCEDURE [dbo].[spGetByPage](@tblName   varchar(255),       -- 表名@strGetFields varchar(1000) = ‘*‘,  -- 需要返回的列@fldName varchar(255)=‘ID‘,      -- 排序的字段名@PageSize   int = 5,          -- 页尺寸@PageIndex  int = 1,           -- 页码@doCount  bit = 5,   -- 返回记录总数, 非 0 值则返回@OrderType bit = 0,  -- 设置排序类型, 非 0 值则降序@strWhere  varchar(1500)=‘1=1‘  -- 查询条件 (注意: 不要加 where))ASdeclare @strSQL   varchar(5000)       -- 主语句declare @strTmp   varchar(110)        -- 临时变量declare @strOrder varchar(400)        -- 排序类型 if @doCount != 0  begin    if @strWhere !=‘‘    set @strSQL = ‘select count(*) as Total from ‘ + @tblName + ‘ where ‘+@strWhere    else    set @strSQL = ‘select count(*) as Total from ‘ + @tblNameend --以上代码的意思是如果@doCount传递过来的不是0，就执行总数统计。以下的所有代码都是@doCount为0的情况elsebegin if @OrderType != 0begin    set @strTmp = ‘<(select min‘set @strOrder = ‘ order by ‘ + @fldName +‘ desc‘--如果@OrderType不是0，就执行降序，这句很重要！endelsebegin    set @strTmp = ‘>(select max‘    set @strOrder = ‘ order by ‘ + @fldName +‘ asc‘end if @PageIndex = 1begin    if @strWhere != ‘‘      set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘+@strGetFields+ ‘  from ‘ + @tblName + ‘ where ‘ + @strWhere + ‘ ‘ + @strOrder     else     set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘+@strGetFields+ ‘  from ‘+ @tblName + ‘ ‘+ @strOrder--如果是第一页就执行以上代码，这样会加快执行速度endelsebegin--以下代码赋予了@strSQL以真正执行的SQL代码set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘+@strGetFields+ ‘  from ‘    + @tblName + ‘ where ‘ + @fldName + ‘‘ + @strTmp + ‘(‘+ @fldName + ‘) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ ‘+ @fldName + ‘ from ‘ + @tblName + ‘‘ + @strOrder + ‘) as tblTmp)‘+ @strOrder if @strWhere != ‘‘    set @strSQL = ‘select top ‘ + str(@PageSize) +‘ ‘+@strGetFields+ ‘  from ‘        + @tblName + ‘ where ‘ + @fldName + ‘‘ + @strTmp + ‘(‘        + @fldName + ‘) from (select top ‘ + str((@PageIndex-1)*@PageSize) + ‘ ‘        + @fldName + ‘ from ‘ + @tblName + ‘ where ‘ + @strWhere + ‘ ‘        + @strOrder + ‘) as tblTmp) and ‘ + @strWhere + ‘ ‘ + @strOrderendend  exec (@strSQL)

  /// <summary>        /// get balanceServers by page        /// </summary>        /// <param name="pageSize"></param>        /// <param name="pageIndex"></param>        /// <param name="totalCount"></param>        /// <returns></returns>        public List<BalanceServers> GetBalanceServerByPage(int pageSize, int pageIndex, out int totalCount)        {            List<BalanceServers> balanceList = null;            totalCount = 0;            string sp = "spGetByPage";            SqlParameter[] spPage ={                                    new SqlParameter("@tblName","BalanceServers"),                                    new SqlParameter("@strGetFields","*"),                                    new SqlParameter("@fldName","Guid"),                                    new SqlParameter("@PageSize",pageSize),                                    new SqlParameter("@PageIndex",pageIndex),                                    new SqlParameter("@doCount",0),                                    new SqlParameter("@OrderType",0)                                                                };try            {          using (SqlDataReader reader = SqlHelper.ExecuteReader(conn, CommandType.StoredProcedure, sp, spPage))                {                    balanceList = CBO.FillCollection<BalanceServers>(reader);                }            }            catch (Exception ex)            {                log.Info("Error:" + ex);            }            return balanceList;        }

  public static List<T> FillCollection<T>(SqlDataReader reader) where T : class, new()        {            List<T> tlist = new List<T>() ;            while (reader.Read())            {                if (tlist == null)                    tlist = new List<T>();                T t = new T();                foreach (PropertyInfo p in t.GetType().GetProperties())                {                    try                    {                        object coloumnValue =http://www.mamicode.com/ reader[p.Name];                        Type objDataType = coloumnValue.GetType();                        if (coloumnValue =http://www.mamicode.com/= null || coloumnValue =http://www.mamicode.com/= DBNull.Value)                        {                            p.SetValue(t, Null.SetNull(p), null);                        }                        else                        {                            p.SetValue(t, coloumnValue, null);                        }                    }                    catch (Exception)                    {                    }                }                tlist.Add(t);            }            return tlist;        }