ASP.NET实现新闻页面的分页功能

来源:网络时间:2011-06-21

  //生成静态网页

   string path = Server.MapPath("~/news/" + folder + "/");

   string file_template_name = Server.MapPath("~/news/template.htm"); //新闻模版文件

   string file_template_content = "";

   StreamReader sr_reader = new StreamReader(file_template_name, Encoding.GetEncoding("gb2312"));

   file_template_content = sr_reader.ReadToEnd();

   sr_reader.Close();

   string[] subContent = FileSplit(content);

   string file_content = "";

   int pageNum = 0;

   while (pageNum < 10 && subContent[pageNum] != "" && subContent[pageNum] != null)

   pageNum++;

   for (int index = 0; index < pageNum; index++)

   {

   file_content = file_template_content;

   file_content = file_content.Replace("$$category", list_department.SelectedItem.Text); //新闻类别

   file_content = file_content.Replace("$$title", title); //新闻标题

   file_content = file_content.Replace("<!--来源:$$author-->", "来源:" + author); //作者

   file_content = file_content.Replace("$$time", time); //添加时间

   file_content = file_content.Replace("$$content", subContent[index]); //新闻正文

   string pageLink = "";

   int firstPage = 0;

   //生成页码

   if (index > 2) firstPage = index - 2;

   for (int i1 = firstPage; i1 < index + 3 && i1 < pageNum; i1++)

   {

   if (i1 == index)

   pageLink = pageLink + "[" + (index + 1) + "]" + "&nbsp; &nbsp; &nbsp; &nbsp;";

   else pageLink = pageLink + "<a href=" + htmlfilename + i1 + ".htm>[" + (i1 + 1) + "]</a>&nbsp; &nbsp; &nbsp; &nbsp;";

   }

   if (index < pageNum - 1)

   pageLink = pageLink + "<a href=" + htmlfilename + (index + 1) + ".htm>" + "下一页" + "</a>&nbsp; &nbsp; &nbsp; &nbsp;";

   if (index > 0)

   pageLink = "<a href=" + htmlfilename + (index - 1) + ".htm>" + "上一页" + "</a>&nbsp; &nbsp; &nbsp; &nbsp;" + pageLink;

   file_content = file_content.Replace("<!-- $$pageLink -->", pageLink);

   if (index == pageNum - 1&&attachment_filename != null && attachment_filename != String.Empty)

   {

   string[] attachment = attachment_filename.Split(new char[] { '|' });

   string attachmenthtml = "<a href="attachment/" + attachment[0] + "" >" + attachment[0] + "</a>";

   for (int j = 1; j < attachment.Length; j++)

   attachmenthtml = attachmenthtml + "<br/> &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<a href="attachment/" + attachment[j] + "" >" + attachment[j] + "</a>";

   file_content = file_content.Replace("$$attachment", attachmenthtml);

   }

   StreamWriter sw = new StreamWriter(path + htmlfilename + index + ".htm", false, Encoding.GetEncoding("gb2312"));

   sw.Write(file_content);

   sw.Flush();

   sw.Close();

   }

   HyperLink1.Text = "预览: " + title;

   HyperLink1.NavigateUrl = "/news/" + folder + "/" + htmlfilename + "0" + ".htm";

   HyperLink1.Visible = true;

   txt_time.Text = DateTime.Now.ToString("yyyy-MM-dd");

   txt_title.Text = "";

   txt_author.Text = "";

   FreeTextBox1.Text = "";

   }

   catch (Exception e)

   {

   }

   }

   //将正文分成多个页面

   protected string[] FileSplit(string fileContent)

   {

   int fileIndex = 0;

   string[] splitedFile = new string[10];

   while (fileContent.Length > 1500 && fileIndex < 9) //每页至少1500个字符

   {

   if (fileContent.IndexOf("<P>", 1500) < 0) break;

   splitedFile[fileIndex] = fileContent.Substring(0, fileContent.IndexOf("<P>", 1500));

   fileContent = fileContent.Remove(0, splitedFile[fileIndex].Length);

   fileIndex++;

   }

   splitedFile[fileIndex] = fileContent; //超过9页,剩下部分全放第十页

   return splitedFile;

   }

   }

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最新评论(共2条)

2345市网友

站做的不错!

2012-05-02 12

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2345市网友

 bucuo

2011-07-01 10

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