首先声明以下几点：
1、也许讲解有点初级，希望高手不要“喷”我，因为我知道并不是每一个人都是高手，我也怕高手们说我装13，小生不才；
2、如有什么不对的地方，还希望大家指出，一定虚心学习；
3、本文属于作者原创，尊重他人劳动成果，转载请注明作者，谢谢。
下面开讲：
首先说下思路，写一个存储过程，我也找了一个存储过程，不过不是我写的，出处：http://www.cnblogs.com/zhongweiv/archive/2011/10/31/JqueryPagination.html 这是一个通过jqurey+ajax实现无刷新分页的例子，应该也不错，因为有的时候要无刷新嘛，我用的存储过程就是从那里copy来的，但是我看了58.com还有一些其他的一些网站信息分页都不会通过无刷新的，所以我特地的写了一个有刷新的分页的方法，好了，先写一个存储过程，然后就是通过div+css来布局点页码传到该页面的参数的值了，思路是通过用StringBuilder类后台布局div以实现动态的页码，然后通过页码调用存储过程，得到相应的信息，最后就是一些细节了，不断的运行调试找出BUG并改正...
一、首先看下页面前台代码
复制代码代码如下:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Page.aspx.cs" Inherits="Jquery.Page"%>
<!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>Tandy Tang有刷新分页...</title>
<style type="text/css">
/*分页部分 start*/
ul
{
margin:0px;
padding:0px;
}
.page
{
width:700px;
background-color:#ffffff;
height:50px;
margin-top:15px;
}
.page ul li
{
float:left;
display:block;
width:28px;
height:23px;
text-align:center;
margin-left:1px;
vertical-align:middle;
border-style:solid;
border-width:1px;
border-color:#b1add0;
}
.page ul li span
{
display:block;
width:28px;
height:23px;
background-color:#2d8da3;
}
.page ul li span a
{
color:#ffffff;
}
.page ul li a
{
display:block;
width:28px;
height:19px;
text-decoration:none;
color:#354c7e;
font-size:12px;
vertical-align:middle;
padding-top:4px;
}
.page ul li a:hover
{
background-color:#2d8da3;
display:block;
width:28px;
height:19px;
}
.page .point
{
background-color:#ffffff;
width:20px;
height:24px;
display:block;
border-style:solid;
border-width:0px;
border-color:#ffffff;
}
.page .pre
{
width:48px;
height:22px;
display:block;
text-align:center;
border-style:solid;
border-width:1px;
border-color:#b1add0;
}
.page .pre a:hover
{
background-color:#2d8da3;
display:block;
width:48px;
height:19px;
}
.page .next
{
width:48px;
height:22px;
display:block;
text-align:center;
border-style:solid;
border-width:1px;
border-color:#b1add0;
}
.page .next a:hover
{
background-color:#2d8da3;
display:block;
width:48px;
height:19px;
}
/*分页部分 end*/
/*内容部分 start*/
.content
{
width:700px;
height:120px;
border-style:solid;
border-width:1px;
border-color:#333333;
margin-bottom:10px;
}
.content_left
{
width:98px;
height:118px;
border-style:solid;
border-width:1px;
border-color:#333333;
float:left;
font-size:12px;
}
.content_right
{
margin-left:10px;
width:588px;
height:118px;
border-style:solid;
border-width:1px;
border-color:#0000ff;
float:left;
}
/*内容部分 end*/
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="lbl1" runat="server"></asp:Label><!--放内容-->
<asp:Label ID="lbl2" runat="server"></asp:Label><!--放页码-->
</div>
</form>
</body>
</html>
css没有用.css文件写是为了方便，呵呵……
二、再看下后台代码（因为我是用三层写的，所以我会把BLL层、DAL层以及Models层的代码也附上）
web(显示)后台.cs代码：
复制代码代码如下:
public static int pageCount = 0;//总数可以用Session保存，避免每次都要查询，影响速度
public int pageindex;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
//page页面索引，其他参数不变，默认从第一页开始
JBLL.JManage manage = new JBLL.JManage();
pageCount = Convert.ToInt32(manage.GetCount().Tables[0].Rows[0]["num"].ToString());
if (Request.QueryString["page"] == null)
{
pageindex=1;
}
else
{
pageindex = Convert.ToInt32(Request.QueryString["page"].ToString());
}
//加载信息和页面
GetInfo(pageindex, 10);
Paging(pageindex, 10);
}
}
/// <summary>
/// 加载数据
/// </summary>
private void GetInfo(int pageindex, int size)
{
string strall = "";
int count;
List<JModels.JPerson> list = new JBLL.JManage().GetAllPerson(size, pageindex, "", out count);
StringBuilder sb = new StringBuilder();
foreach (JModels.JPerson p in list)
{
sb.Append("<div class='content'><div class='content_left'>");
sb.Append(p.Name);
sb.Append("</div><div class='content_right'>");
sb.Append(p.Id.ToString());
sb.Append("</div></div>");
}
strall = sb.ToString();
lbl1.Text = strall;
}
private void Paging(int pageindex, int size)
{
string strpage = "";
StringBuilder sb = new StringBuilder();
sb.Append("<div class=\"page\"><ul>");
//需要判断是否启用
if (pageindex == 1)
{
sb.Append("<li class=\"pre\" style=\"display:none\"><a href=\"Page.aspx?page=" + (pageindex - 1) + "\"><<Prev</a></li>");
}
else
{
sb.Append("<li class=\"pre\"><a href=\"Page.aspx?page=" + (pageindex - 1) + "\"><<Prev</a></li>");
}
//页码数
int pageNum;
if (pageCount % size == 0)
{
pageNum = pageCount / size;
}
else
{
pageNum = pageCount / size + 1;
}
if (pageNum < 11)
{
for (int i = 1; i <= pageNum; i++)
{
if (i == pageindex)
{
sb.Append("<li><span><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></span></li>");
}
else
{
sb.Append("<li><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></li>");
}
}
}
else
{
//判断是否是前7页
if (pageindex > 0 && pageindex < 8)
{
for (int i = 1; i < 9; i++)
{
if (i == pageindex)
{
sb.Append("<li><span><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></span></li>");
}
else
{
sb.Append("<li><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></li>");
}
}
sb.Append("<li class=\"point\">...</li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageNum - 1) + "\">" + (pageNum - 1) + "</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageNum) + "\">" + (pageNum) + "</a></li>");
}
else if (pageindex > 7 && pageindex < (pageNum - 6))
{
sb.Append("<li><a href=\"Page.aspx?page=1\">1</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=2\">2</a></li>");
sb.Append("<li class=\"point\">...</li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageindex - 3) + "\">" + (pageindex - 3) + "</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageindex - 2) + "\">" + (pageindex - 2) + "</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageindex - 1) + "\">" + (pageindex - 1) + "</a></li>");
sb.Append("<li><span><a href=\"Page.aspx?page=" + pageindex + "\">" + pageindex + "</a></span></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageindex + 1) + "\">" + (pageindex + 1) + "</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageindex + 2) + "\">" + (pageindex + 2) + "</a></li>");
sb.Append("<li class=\"point\">...</li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageNum - 1) + "\">" + (pageNum - 1) + "</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=" + (pageNum) + "\">" + (pageNum) + "</a></li>");
}
else
{
sb.Append("<li><a href=\"Page.aspx?page=1\">1</a></li>");
sb.Append("<li><a href=\"Page.aspx?page=2\">2</a></li>");
sb.Append("<li class=\"point\">...</li>");
for (int i = (pageNum - 7); i <= pageNum; i++)
{
if (i == pageindex)
{
sb.Append("<li><span><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></span></li>");
}
else
{
sb.Append("<li><a href=\"Page.aspx?page=" + i + "\">" + i + "</a></li>");
}
}
}
}
//需要判断是否启用
if (pageindex == pageNum)
{
sb.Append("<li class=\"next\" style=\"display:none;\"><a href=\"Page.aspx?page=" + (pageindex + 1) + "\">Next>></a></li>");
}
else
{
sb.Append("<li class=\"next\"><a href=\"Page.aspx?page=" + (pageindex + 1) + "\">Next>></a></li>");
}
sb.Append("</ul></div>");
strpage = sb.ToString();
lbl2.Text = strpage;
}
BLL层(逻辑)代码：
复制代码代码如下:
public class JManage
{
public DataSet GetCount()
{
return JDAL.JService.GetCount();
}
///<summary>
/// 记录总条数
///</summary>
///<returns></returns>
public DataSet GetCount(string where)
{
return JDAL.JService.GetCount(where);
}
///<summary>
/// 得到所有人
///</summary>
///<returns></returns>
public List<JModels.JPerson> GetAllPerson(int size, int index, string where, out int OutTotalCount)
{
return JDAL.JService.GetAllPerson(size, index, where, out OutTotalCount);
}
}
DAL层(数据处理)代码：
复制代码代码如下:
public static DataSet GetCount()
{
string sql = "select count(*) as num from qzDatas";
return DBHelp.GetDataSetBySql(sql);
}
///<summary>
/// 记录总条数
///</summary>
///<returns></returns>
public static DataSet GetCount(string where)
{
string sql = "select count(*) as num from qzDatas where " + where + "";
return DBHelp.GetDataSetBySql(sql);
}
///<summary>
/// 得到所有人
///</summary>
///<returns></returns>
public static List<JModels.JPerson> GetAllPerson(int size, int index, string where, out int OutTotalCount)
{
JModels.JPerson person = null;
List<JModels.JPerson> list = new List<JModels.JPerson>();
DataTable dt = new DataTable();
string[] paramValue =
{
"qzDatas", //表明
"*", //返回字段
"qzDatasId", //主键标识列
where, //where条件
"qzDatasId asc", //排序必须跟有 asc 或 desc
"1", //排序规则 1:正序asc 2:倒序desc 3:多列排序方法
"0", //记录总数 0:会返回总记录
""+size, //页面大小
""+index //当前页
};
dt = DBHelp.SqlGetDataTable("P_AspNetPage", CommandType.StoredProcedure, paramValue, out OutTotalCount);
foreach (DataRow dr in dt.Rows)
{
person = new JModels.JPerson();
person.Id = Convert.ToInt32(dr["qzDatasId"]);
person.Name = dr["dataName"].ToString();
person.Imgurl = dr["url"].ToString();
person.Email = dr["dataName"].ToString();
list.Add(person);
}
return list;
}
Models层代码：
复制代码代码如下:
public class JPerson
{
//id
private int id;
public int Id
{
get { return id; }
set { id = value; }
}
//名字
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
//头像
private string imgurl;
public string Imgurl
{
get { return imgurl; }
set { imgurl = value; }
}
//Email
private string email;
public string Email
{
get { return email; }
set { email = value; }
}
}
以上代码我都有注释了，就不多解释了，但我相信应该还有改进的地方，尤其是web显示层的后台，添加页码那部分，肯定还有好办法，如果谁有好办法，希望能告诉我啊，大家一起学习嘛，谢谢。
三、看一下存储过程到底是怎么写的
复制代码代码如下:
CREATE PROCEDURE [dbo].[P_AspNetPage]
/*
nzperfect [no_mIss] 高效通用分页存储过程(双向检索) 2007.5.7 QQ:34813284
敬告：适用于单一主键或存在唯一值列的表或视图
ps:Sql语句为8000字节,调用时请注意传入参数及sql总长度不要超过指定范围
*/
@TableName VARCHAR(200), --表名
@FieldList VARCHAR(2000), --显示列名，如果是全部字段则为*
@PrimaryKey VARCHAR(100), --单一主键或唯一值键
@Where VARCHAR(2000), --查询条件 不含'where'字符，如id>10 and len(userid)>9
@Order VARCHAR(1000), --排序 不含'order by'字符，如id asc,userid desc，必须指定asc或desc
--注意当@SortType=3时生效，记住一定要在最后加上主键，否则会让你比较郁闷
@SortType INT, --排序规则 1:正序asc 2:倒序desc 3:多列排序方法
@RecorderCount INT, --记录总数 0:会返回总记录
@PageSize INT, --每页输出的记录数
@PageIndex INT, --当前页数
@TotalCount INT OUTPUT, --记返回总记录
@TotalPageCount INT OUTPUT --返回总页数
AS
SET NOCOUNT ON
IF ISNULL(@TotalCount,'') = '' SET @TotalCount = 0
SET @Order = RTRIM(LTRIM(@Order))
SET @PrimaryKey = RTRIM(LTRIM(@PrimaryKey))
SET @FieldList = REPLACE(RTRIM(LTRIM(@FieldList)),'','')
WHILE CHARINDEX(', ',@Order) > 0 OR CHARINDEX(' ,',@Order) > 0
BEGIN
SET @Order = REPLACE(@Order,', ',',')
SET @Order = REPLACE(@Order,' ,',',')
END
IF ISNULL(@TableName,'') = '' OR ISNULL(@FieldList,'') = ''
OR ISNULL(@PrimaryKey,'') = ''
OR @SortType < 1 OR @SortType >3
OR @RecorderCount < 0 OR @PageSize < 0 OR @PageIndex < 0
BEGIN
PRINT('ERR_00')
RETURN
END
IF @SortType = 3
BEGIN
IF (UPPER(RIGHT(@Order,4))!=' ASC' AND UPPER(RIGHT(@Order,5))!=' DESC')
BEGIN PRINT('ERR_02') RETURN END
END
DECLARE @new_where1 VARCHAR(1000)
DECLARE @new_where2 VARCHAR(1000)
DECLARE @new_order1 VARCHAR(1000)
DECLARE @new_order2 VARCHAR(1000)
DECLARE @new_order3 VARCHAR(1000)
DECLARE @Sql VARCHAR(8000)
DECLARE @SqlCount NVARCHAR(4000)
IF ISNULL(@where,'') = ''
BEGIN
SET @new_where1 = ''
SET @new_where2 = ' WHERE '
END
ELSE
BEGIN
SET @new_where1 = ' WHERE ' + @where
SET @new_where2 = ' WHERE ' + @where + ' AND '
END
IF ISNULL(@order,'') = '' OR @SortType = 1 OR @SortType = 2
BEGIN
IF @SortType = 1
BEGIN
SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' ASC'
SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' DESC'
END
IF @SortType = 2
BEGIN
SET @new_order1 = ' ORDER BY ' + @PrimaryKey + ' DESC'
SET @new_order2 = ' ORDER BY ' + @PrimaryKey + ' ASC'
END
END
ELSE
BEGIN
SET @new_order1 = ' ORDER BY ' + @Order
END
IF @SortType = 3 AND CHARINDEX(','+@PrimaryKey+'',','+@Order)>0
BEGIN
SET @new_order1 = ' ORDER BY ' + @Order
SET @new_order2 = @Order + ','
SET @new_order2 = REPLACE(REPLACE(@new_order2,'ASC,','{ASC},'),'DESC,','{DESC},')
SET @new_order2 = REPLACE(REPLACE(@new_order2,'{ASC},','DESC,'),'{DESC},','ASC,')
SET @new_order2 = ' ORDER BY ' + SUBSTRING(@new_order2,1,LEN(@new_order2)-1)
IF @FieldList <> '*'
BEGIN
SET @new_order3 = REPLACE(REPLACE(@Order + ',','ASC,',','),'DESC,',',')
SET @FieldList = ',' + @FieldList
WHILE CHARINDEX(',',@new_order3)>0
BEGIN
IF CHARINDEX(SUBSTRING(','+@new_order3,1,CHARINDEX(',',@new_order3)),','+@FieldList+',')>0
BEGIN
SET @FieldList =
@FieldList + ',' + SUBSTRING(@new_order3,1,CHARINDEX(',',@new_order3))
END
SET @new_order3 =
SUBSTRING(@new_order3,CHARINDEX(',',@new_order3)+1,LEN(@new_order3))
END
SET @FieldList = SUBSTRING(@FieldList,2,LEN(@FieldList))
END
END
SET @SqlCount = 'SELECT @TotalCount=COUNT(*),@TotalPageCount=CEILING((COUNT(*)+0.0)/'
+ CAST(@PageSize AS VARCHAR)+') FROM ' + @TableName + @new_where1
IF @RecorderCount = 0
BEGIN
EXEC SP_EXECUTESQL @SqlCount,N'@TotalCount INT OUTPUT,@TotalPageCount INT OUTPUT',
@TotalCount OUTPUT,@TotalPageCount OUTPUT
END
ELSE
BEGIN
SELECT @TotalCount = @RecorderCount
END
IF @PageIndex > CEILING((@TotalCount+0.0)/@PageSize)
BEGIN
SET @PageIndex = CEILING((@TotalCount+0.0)/@PageSize)
END
IF @PageIndex = 1 OR @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize)
BEGIN
IF @PageIndex = 1 --返回第一页数据
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM '
+ @TableName + @new_where1 + @new_order1
END
IF @PageIndex >= CEILING((@TotalCount+0.0)/@PageSize) --返回最后一页数据
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ('
+ 'SELECT TOP ' + STR(ABS(@PageSize*@PageIndex-@TotalCount-@PageSize))
+ '' + @FieldList + ' FROM '
+ @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
+ @new_order1
END
END
ELSE
BEGIN
IF @SortType = 1 --仅主键正序排序
BEGIN
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM '
+ @TableName + @new_where2 + @PrimaryKey + ' > '
+ '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
+ STR(@PageSize*(@PageIndex-1)) + '' + @PrimaryKey
+ ' FROM ' + @TableName
+ @new_where1 + @new_order1 +' ) AS TMP) '+ @new_order1
END
ELSE --反向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ('
+ 'SELECT TOP ' + STR(@PageSize) + ''
+ @FieldList + ' FROM '
+ @TableName + @new_where2 + @PrimaryKey + ' < '
+ '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
+ STR(@TotalCount-@PageSize*@PageIndex) + '' + @PrimaryKey
+ ' FROM ' + @TableName
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
+ ' ) AS TMP ' + @new_order1
END
END
IF @SortType = 2 --仅主键反序排序
BEGIN
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM '
+ @TableName + @new_where2 + @PrimaryKey + ' < '
+ '(SELECT MIN(' + @PrimaryKey + ') FROM (SELECT TOP '
+ STR(@PageSize*(@PageIndex-1)) + '' + @PrimaryKey
+' FROM '+ @TableName
+ @new_where1 + @new_order1 + ') AS TMP) '+ @new_order1
END
ELSE --反向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ('
+ 'SELECT TOP ' + STR(@PageSize) + ''
+ @FieldList + ' FROM '
+ @TableName + @new_where2 + @PrimaryKey + ' > '
+ '(SELECT MAX(' + @PrimaryKey + ') FROM (SELECT TOP '
+ STR(@TotalCount-@PageSize*@PageIndex) + '' + @PrimaryKey
+ ' FROM ' + @TableName
+ @new_where1 + @new_order2 +' ) AS TMP) '+ @new_order2
+ ' ) AS TMP ' + @new_order1
END
END
IF @SortType = 3 --多列排序，必须包含主键，且放置最后，否则不处理
BEGIN
IF CHARINDEX(',' + @PrimaryKey + '',',' + @Order) = 0
BEGIN PRINT('ERR_02') RETURN END
IF @PageIndex <= CEILING((@TotalCount+0.0)/@PageSize)/2 --正向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ( '
+ 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ( '
+ ' SELECT TOP ' + STR(@PageSize*@PageIndex) + '' + @FieldList
+ ' FROM ' + @TableName + @new_where1 + @new_order1 + ' ) AS TMP '
+ @new_order2 + ' ) AS TMP ' + @new_order1
END
ELSE --反向检索
BEGIN
SET @Sql = 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ( '
+ 'SELECT TOP ' + STR(@PageSize) + '' + @FieldList + ' FROM ( '
+ ' SELECT TOP ' + STR(@TotalCount-@PageSize *@PageIndex+@PageSize) + '' + @FieldList
+ ' FROM ' + @TableName + @new_where1 + @new_order2 + ' ) AS TMP '
+ @new_order1 + ' ) AS TMP ' + @new_order1
END
END
END
EXEC(@Sql)
存储过程应该写得很详细了...我就不解释了。这个存储过程的用处很多啊，如果想实现无刷新的分页的话也是可以用的，调用的方法基本一样，大家可以自己试试。
好吧，到这里代码也基本上完成了，我认为主要的还是思路问题，思路有了就好办了，代码如果哪里有误或者有哪些更好的解决方案，请告诉我啊，一定虚心学习哈。下面看下效果图吧！效果图如下：
有一个注意点哦：进入页面的时候一定要给参数page一个值，不然的话，会出错，你懂的呀！如：http://localhost:60284/Page.aspx?page=88