创建表格并添加300万数据
use Stored CREATE TABLE UserInfo( --创建表 id int IDENTITY(1,1) PRIMARY KEY not null,--添加主键和标识列 UserName varchar(50) ) declare @i int --添加3百万数据，大概4分钟时间 set @i=1 while @i<3000000 begin insert into UserInfo (UserName) values(@i) set @i=@i+1 end
存储过程T-SQL
create PROCEDURE [dbo].[GetDataList] ( @TableName varchar(5000), --表名 @Fields varchar(5000) = '*', --字段名(全部字段为*) @OrderField varchar(5000), --排序字段(必须!支持多字段) @OrderType varchar(5000), --排序类型 @sqlWhere varchar(5000) = Null, --条件语句(不用加where) @pageSize int, --每页多少条记录 @pageIndex int = 1 , --指定当前为第几页 @TotalPage int output, --返回总页数 @totalRecord int output --计算总记录数 --返回总记录数 ) as begin Begin Tran --开始事务 Declare @sql nvarchar(500); if (@SqlWhere='' or @sqlWhere=NULL) set @sql = 'select @totalRecord = count(*) from ' + @TableName else set @sql = 'select @totalRecord = count(*) from ' + @TableName + ' where ' + @sqlWhere EXEC sp_executesql @sql,N'@totalRecord int OUTPUT',@totalRecord OUTPUT--计算总记录数 --计算总页数 select @TotalPage=CEILING((@totalRecord+0.0)/@PageSize) if (@SqlWhere='' or @sqlWhere=NULL) set @sql = 'Select * FROM (select ROW_NUMBER() Over(order by ' + @OrderField +' ' + @Ordertype+' ) as rowId,' + @Fields + ' from ' + @TableName else set @sql = 'Select * FROM (select ROW_NUMBER() Over(order by ' + @OrderField +' ' + @Ordertype+' ) as rowId,' + @Fields + ' from ' + @TableName + ' where ' + @SqlWhere --处理页数超出范围情况 if @PageIndex<=0 Set @pageIndex = 1 if @pageIndex>@TotalPage Set @pageIndex = @TotalPage --处理开始点和结束点 Declare @StartRecord int Declare @EndRecord int set @StartRecord = (@pageIndex-1)*@PageSize + 1 set @EndRecord = @StartRecord + @pageSize - 1 --继续合成sql语句 set @Sql = @Sql + ') as ' + @TableName + ' where rowid between ' + Convert(varchar(50),@StartRecord) + ' and ' + Convert(varchar(50),@EndRecord) --print @Sql Exec(@Sql) --------------------------------------------------- If @@Error <> 0 Begin RollBack Tran Return -1 End Else Begin Commit Tran Return @totalRecord ---返回记录总数 End end --exec GetDataList 'Userinfo','*','id','desc','',10,1,3,3000000
前台页面Default2.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <div> <asp:GridView ID="GridView1" runat="server"> </asp:GridView> <asp:Label ID="lbl_page" runat="server" Text="Label"></asp:Label> </div> </form> </body> </html>
后台CS代码Default2.aspx.cs
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data; using System.Data.SqlClient; using System.Configuration; using System.Text; public partial class Default2 : System.Web.UI.Page { private int PageIndex = 0;//当前页码 private int PageSize = 50;//每页几条记录 private int TotalPage = 1;//总分页数 private int TotalRecord = 0;//总记录 private string OrderType = " desc";//排序方式 默认正序 protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { GetParams(); DataSet ds = PageData("UserInfo", "*", "id", OrderType, "", PageSize, PageIndex, out TotalPage, out TotalRecord); GridView1.DataSource = ds; GridView1.DataBind(); lbl_page.Text = GetDivPager("", ds); } } //数据库连接字符 public static string StrConn() { //return string.Format("{0}","server=.;database=Stored;user=sa;password=123456"); return ConfigurationSettings.AppSettings["ConnString"].ToString(); } //Get方式获得下一页 private void GetParams() { if (!String.IsNullOrEmpty(Request["page"])) { PageIndex = Convert.ToInt32(Request["Page"]); } else { PageIndex = 1; } } #region 获得分页字符 public string GetDivPager(string queryString, DataSet ds) { StringBuilder sp = new StringBuilder(); int TotalCount = TotalRecord; int rowCount = TotalPage; if (ds != null) { sp.AppendFormat(" <p>总记录：<span id="sum">{0}</span>", TotalCount); sp.AppendFormat(" 页码：<em><b id="current">{0}</b>/<span id="count">{1}</span></em> ", PageIndex, rowCount); sp.AppendFormat(" 每页：<span id="eachPage">{0}</span></p> ", PageSize); sp.AppendFormat(" <a href='{0}'>首页</a> ", "" + queryString); if (PageIndex > 1) { sp.AppendFormat(" <a href='{0}'>< 上一页 </a>", "" + (PageIndex - 1) + queryString); } int temp = 0; int loopc = rowCount > 10 ? 10 : rowCount; for (int i = 0; i < loopc; i++) { temp = i + 1; if (PageIndex > 10) { temp = (PageIndex - 10) + i + 1; } sp.AppendFormat(" <a href='{1}'>{2}</a>", PageIndex == temp ", "" + temp + queryString, temp); } if (PageIndex != rowCount) { sp.AppendFormat(" <a href='{0}'>下一页 ></a>", "" + (PageIndex + 1) + queryString); } sp.AppendFormat(" <a href='{0}'>尾页</a>", "" + rowCount + queryString); } else { ds = null; } return sp.ToString(); } #endregion #region 获取分页的数据 /// <summary> /// 获取分页的数据 /// </summary> /// <param name="TblName">数据表名</param> /// <param name="Fields">要读取的字段</param> /// <param name="OrderField">排序字段</param> /// <param name="OrderType">排序方式</param> /// <param name="SqlWhere">查询条件</param> /// <param name="PageSize">每页显示多少条数据</param> /// <param name="pageIndex">当前页码</param> /// <param name="TotalPage">返回值，共有多少页</param> /// <param name="TotalRecord">返回值，总有多少条记录</param> /// <returns></returns> public static DataSet PageData(string TblName, string Fields, string OrderField, string OrderType, string SqlWhere, int PageSize, int pageIndex, out int TotalPage, out int TotalRecord) { SqlConnection conn = new SqlConnection(StrConn()); SqlCommand comm = new SqlCommand("GetDataList", conn); comm.Parameters.Add(new SqlParameter("@TableName", SqlDbType.NVarChar, 100)).Value = TblName; comm.Parameters.Add(new SqlParameter("@Fields", SqlDbType.NVarChar, 1000)).Value = Fields; comm.Parameters.Add(new SqlParameter("@OrderField", SqlDbType.NVarChar, 1000)).Value = OrderField; comm.Parameters.Add(new SqlParameter("@OrderType", SqlDbType.NVarChar, 1000)).Value = OrderType; comm.Parameters.Add(new SqlParameter("@sqlWhere", SqlDbType.NVarChar, 1000)).Value = SqlWhere; comm.Parameters.Add(new SqlParameter("@pageSize", SqlDbType.Int)).Value = PageSize; comm.Parameters.Add(new SqlParameter("@pageIndex", SqlDbType.Int)).Value = pageIndex; comm.Parameters.Add(new SqlParameter("@TotalPage", SqlDbType.Int)); comm.Parameters["@TotalPage"].Direction = ParameterDirection.Output;//获得out出来的参数值 comm.Parameters.Add(new SqlParameter("@totalRecord", SqlDbType.Int)); comm.Parameters["@totalRecord"].Direction = ParameterDirection.Output; comm.CommandType = CommandType.StoredProcedure; SqlDataAdapter dataAdapter = new SqlDataAdapter(comm); DataSet ds = new DataSet(); dataAdapter.Fill(ds); TotalPage = (int)comm.Parameters["@TotalPage"].Value; TotalRecord = (int)comm.Parameters["@totalRecord"].Value; conn.Close(); conn.Dispose(); comm.Dispose(); return ds; } #endregion }
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