简单写点ASP.NET文章内容分页
作者：互联网
原文链接：http://www.cnblogs.com/haylim/articles/4173812.html
最近有点闲，写了个文章内容分页
前台
1 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="newsContent.aspx.cs" Inherits="newsContent" %> 2 <%@ Register Src="UserControls/search.ascx" TagName="search" TagPrefix="uc3" %> 3 <%@ Register Src="UserControls/UserFoot.ascx" TagName="UserFoot" TagPrefix="uc1" %> 4 5 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 6 7 <html xmlns="http://www.w3.org/1999/xhtml" > 8 <head runat="server"> 9 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 10 <title>物流资讯-内页</title> 11 <link href="css/newsContent.css" rel="stylesheet" type="text/css" /> 12 <link href="css/style.css" rel="stylesheet" type="text/css" /> 13 <link href="css/common.css" rel="stylesheet" type="text/css" /> 14 <link href="../css/style.css" rel="stylesheet" type="text/css" /> 15 </head> 16 17 <body> 18 <iframe scrolling="no" width="100%"; height="165" src="include/head.html" frameborder="0"></iframe> 19 <form id="form1" runat="server"> 20 <div class="blank3"></div> 21 <div class="content"> 22 <div class="blank3"></div> 23 <div class="area"> 24 <div class="i_left"><uc3:search ID="Search1" runat="server" /> 25 <%-- <div class="rightⅠ"> 26 <div class="blank20"></div> 27 <div class="rightS"> 28 <div class="title"> 29 <span class="Blue fB left_tilte"><img src="img/index_30.gif" width="66" height="32" /></span> 30 <div class=" clear"></div> 31 </div> 32 <div class="blank9"></div> 33 <input type="text" name="textfield" class="texts" id="textfield" /> 34 <div class="blank9"></div> 35 <div class=" right"><img src="img/index_38.gif" width="56" height="17" /></div> 36 </div> 37 </div>--%> 38 <div class="blank9"></div> 39 <div class="percent"> 40 <div class="left_bor"> 41 <div class="left_menu">物流资讯</div> 42 <div class="menu_bg"> 43 <ul > 44 <li id="about1"><a href="newslist.aspx?ClassName=企业新闻" >企业新闻</a></li> 45 <li id="about2"><a href="newslist.aspx?ClassName=行业动态" >行业动态</a></li> 46 <li id="about3"><a href="newslist.aspx?ClassName=物流知识" >物流知识</a></li> 47 <li id="about4"><a href="newslist.aspx?ClassName=物流法规" >物流法规</a></li> 48 </ul> 49 </div> 50 <div class="blank9"></div> 51 <div class="blank9"></div> 52 <div class="blank9"></div> 53 </div> 54 </div> 55 <div class="blank9"></div> 56 </div> 57 <div class=" i_right"> 58 <div class="percent"> 59 <div class="ad1"><img src="ad_img/join_us_03.jpg" width="760" height="116" /></div> 60 </div> 61 <div class="blank9"></div> 62 <div class="right_BG"> 63 <div class="blank9"></div> 64 <div class="mag_center"> 65 <div class="news_title"> 66 <span class="more"><a class=" cOrange">>>更多</a></span> 67 <span class=" news_titS">物流资讯 </span></div> 68 69 <div id="endMain"> 70 <div class="theTitle"> 71 <h1 id="endTitle"><%=strTitle%></h1> 72 <div class="text">发布日期： <%=strDate%> 点击次数：<%=strHits%> </div> 73 </div> 74 <div id="endText"> 75 <%=strContent%> 76 77 </div> 78 </div> 79 </div> 80 <div class="blank9"></div> 81 </div> 82 83 </div> 84 <!-- 分类 --> 85 <div class="clear"></div> 86 </div> 87 88 </div> 89 <div class="blank9"></div> 90 <uc1:UserFoot ID="UserFoot1" runat="server" /> 91 </form> 92 </body> 93 </html>
实现后台
1 using System;
2 using System.Data;
3 using System.Configuration;
4 using System.Collections;
5 using System.Web;
6 using System.Web.Security;
7 using System.Web.UI;
8 using System.Web.UI.WebControls;
9 using System.Web.UI.WebControls.WebParts;
10 using System.Web.UI.HtmlControls;
11 using NewAuto.Data;
12 using NewAuto.Entities;
13
14 using System.Collections;
15
16 public partial class newsContent : System.Web.UI.Page
17 {
18 protected string strTitle = string.Empty;
19 protected string strDate = string.Empty;
20 protected string strHits = string.Empty;
21 protected string strContent = string.Empty;
22 protected string strClass = string.Empty;
23 protected string page = string.Empty;
24 protected void Page_Load(object sender, EventArgs e)
25 {
26 page = Request.Params["page"];
27 string NewsID = Request.Params["id"];
28 if (!this.Page.IsPostBack)
29 {
30 GetNewsDesc(NewsID);
31 Page.Title = "捷利物流-" + strTitle;
32 }
33 }
34
35 #region 获取新闻信息
36 /// <summary>
37 /// 根据ID获取新闻信息
38 /// </summary>
39 /// <param name="ID"></param>
40 private void GetNewsDesc(string ID)
41 {
42 if (!string.IsNullOrEmpty(ID))
43 {
44 Hashtable ht = new Hashtable();
45
46 NewAuto.Entities.News objNews = new NewAuto.Entities.News();
47 objNews = DataRepository.NewsProvider.GetById(Convert.ToInt32(ID));
48 strTitle = objNews.Title;
49 strDate = objNews.AddDate.ToString();
50 strHits = objNews.Hits.ToString();
51 //strContent =substr(objNews.Contents);
52 ht = SeparatePages(objNews.Contents, page, 600, "newscontent.aspx?id=" + ID);
53
54 foreach (Object obj in ht.Keys)
55 {
56 //Console.WriteLine("\t{0}:\t{1}", (string)obj, myHT[obj]);
57 strContent += "<span style='text-align: center'>" + ht[obj] + "</span><br /><br />";
58 }
59 //strContent=SeparatePages(objNews.Contents, page, 500, "newscontent.aspx?id=" + ID).Values.ToString();
60 //更新打开该新闻次数
61 objNews.Hits = objNews.Hits + 3;
62 DataRepository.NewsProvider.Update(objNews);
63 }
64 }
65 #endregion
66
67
68 #region 长新闻分页
69 /**/
70 /// <summary>
71 /// 长内容分页 哈希表需要引用命名空间System.Collections
72 /// </summary>
73 /// <param name="n_content">新闻内容</param>
74 /// <param name="page">是新闻当前页数</param>
75 /// <param name="size">每页显示字符长度</param>
76 /// <param name="linkurl">页码链接地址</param>
77 /// <returns></returns>
78 private System.Collections.Hashtable SeparatePages(string n_content, string page, int size, string linkurl)
79 {
80 //在此处放置初始化页的用户代码
81 System.Collections.Hashtable returnHash = new System.Collections.Hashtable();
82 int start, stops, t, stat, pp, pagecount, pagesize;
83 string pa, articletxt, articletext, html;
84 int pig = 0;
85
86 //变量初始值
87 stat = 0;
88 start = 0; //开始查询的字符串位置，初始为0
89 stops = 0;
90 pagesize = size;//定义每页至少显示字符串数
91 pagecount = 0;
92 html = "";
93
94 //获得当前的页数
95 pa = page;
96 if (pa == "" || pa == null)
97 {
98 pa = "1";
99 }
100 pp = Convert.ToInt32(pa);
101
102 //获得内容
103 articletxt = n_content;
104
105 //判断页面的内容长度是否大于定义的每页至少显示字符串数
106 if (articletxt.Length >= pagesize) // 如果大于字符串数，则我们可以分页显示
107 {
108 t = articletxt.Length / pagesize; //获得大致的总页数
109 for (int j = 0; j <= t; j++)
110 { //如果查询开始位置到查询的范围超出整个内容的长度，那么就不用寻找断点（分页点）；反之，查找
111 if (start + pagesize < articletxt.Length)
112 {
113 stat = articletxt.ToLower().IndexOf("</p>", start + pagesize); //查找</P>分页点的位置
114 if (stat == -1)
115 stat = articletxt.ToLower().IndexOf("<br>", start + pagesize); //查找</P>分页点的位置
116 if (stat == -1)
117 stat = articletxt.ToLower().IndexOf("<br/>", start + pagesize); //查找</P>分页点的位置
118 }
119 if (stat <= 0)//如果找不到
120 {
121
122 }
123 else
124 {
125 stops = stat; //分页点的位置也就作为这一页的终点位置
126
127 if (start < articletxt.Length)
128 {
129 if ((articletxt.Length - start) < pagesize)
130 {
131 if (pig == 0)
132 {
133 pagecount = pagecount + 1;
134 }
135 pig = 1;
136 }
137 else
138 {
139 pagecount = pagecount + 1;
140 }
141 }
142 if (start + pagesize >= articletxt.Length) //如果起始位置到查询的范围超出整个内容的长度，那么这一页的终点位置为内容的终点
143 {
144 stops = articletxt.Length;
145 }
146 if (pp == j + 1) //如果是当前，那么输出当前页的内容
147 {
148 articletext = articletxt.Substring(start, stops - start); //取内容的起始位置到终点位置这段字符串输出
149 returnHash["content"] = articletext;
150 }
151 start = stat; //将终点位置作为下一页的起始位置
152 }
153 }// pagecount = pagecount - 1;
154 }
155 else
156 {
157 returnHash["content"] = n_content;
158 }
159 //分页部分(这里就简单多了)
160 //定义分页代码变量
161 if (pagecount > 1) //当页数大于1的时候我们显示页数
162 {
163 if (pp - 1 > 0) //显示上一页，方便浏览
164 { html = html + "<a href=\"" + linkurl + "&page=" + (pp - 1) + "\">[上一页]</a> "; }
165 else
166 {
167 if (pp == 1)
168 { html = html + "[<font color=#cccccc>上一页</font>] "; }
169 else
170 { html = html + "<a href=\"" + linkurl + "&page=\"" + (1) + "\">[上一页]</a> "; }
171 }
172 for (int i = 1; i <= pagecount; i++)
173 {
174 if (i == pp) //如果是当前页，加粗显示
175 { html = html + "<b>[" + i + "]</b> "; }
176 else
177 { html = html + "<a href=\"" + linkurl + "&page=" + i + "\">[" + i + "]</a> "; }
178 }
179 if (pp + 1 > pagecount) //显示下一页，方便浏览
180 {
181 if (pp == pagecount)
182 { html = html + "[<font color=#cccccc>下一页</font>] "; }
183 else
184 { html = html + "<a href=\"" + linkurl + "&page=" + (pagecount) + "\">[下一页]</a></p>"; }
185 }
186 else
187 {
188 html = html + "<a href=\"" + linkurl + "&page=" + (pp + 1) + "\">[下一页]</a></p>";
189 }
190 }
191 returnHash["pagetxt"] = html;
192 return returnHash;
193 }
194
195 #endregion
196
197 }
就这么简单
转载于:https://www.cnblogs.com/haylim/articles/4173812.html
标签：ASP,string,articletxt,System,写点,html,objNews,using,NET 来源： https://blog.csdn.net/weixin_30932215/article/details/97377249