Asp.net(C#)读取数据库并生成JS文件制作首页图片切换效果(附demo源

2019-05-22 19:45:09王旭

本文实例讲述了Asp.net(C#)读取数据库并生成JS文件制作首页图片切换效果的方法。,具体如下:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Text;
using System.IO;
public partial class _Default : System.Web.UI.Page
{
  protected void Page_Load(object sender, EventArgs e)
  {
  }
  /// <summary>
  /// 利用模板生成静态页面
  /// </summary>
  /// <param name="strTitle">标题</param>
  /// <param name="strText">作者</param>
  /// <param name="strContent">发布时间</param>
  /// <param name="strAuthor">内容</param>
  /// <returns>生成页面名称</returns>
  public static string WriteFile(string strTitle, string strAuthor, string strDate, string strContent)
  {
    string path = HttpContext.Current.Server.MapPath("~/");
    Encoding code = Encoding.GetEncoding("gb2312");
    // 读取模板文件
    string temp = HttpContext.Current.Server.MapPath("~/Template.html");
    StreamReader sr = null;
    StreamWriter sw = null;
    string str = "";
    try
    {
      sr = new StreamReader(temp, code);
      str = sr.ReadToEnd(); // 读取文件
    }
    catch (Exception exp)
    {
      HttpContext.Current.Response.Write(exp.Message);
      HttpContext.Current.Response.End();
      sr.Close();
    }
    Random rd = new Random();
    string strRd = rd.Next(0, 9999).ToString();
    string htmlfilename = DateTime.Now.ToString("yyyyMMddHHmmss") + strRd + ".html";
    DateTime dtNow = DateTime.Now;
    // 替换内容
    str = str.Replace("$biaoti", strTitle);
    str = str.Replace("$author", strAuthor);
    str = str.Replace("$datetime", strDate);
    str = str.Replace("$content", strContent);
    // 写文件
    try
    {
      string pathUrl = path + dtNow.Year + "" + dtNow.Month + "" + dtNow.Day;
      if (!Directory.Exists(pathUrl))
      {
        Directory.CreateDirectory(pathUrl);
      }
      sw = new StreamWriter(pathUrl + "" + htmlfilename, false, code);
      sw.Write(str);
      sw.Flush();
    }
    catch (Exception ex)
    {
      HttpContext.Current.Response.Write(ex.Message);
      HttpContext.Current.Response.End();
    }
    finally
    {
      sw.Close();
    }
    return dtNow.Year.ToString() + "/" + dtNow.Month.ToString() + "/" + dtNow.Day.ToString() + "/" + htmlfilename;
  }
  protected void Button1_Click(object sender, EventArgs e)
  {
    WriteFile("title" , "ttttttt" , "2011-09-27", "测试 <br>");
  }
}

Template.html

<table>
  <tr>
    <td align="center">$biaoti</td>
  </tr>
  <tr>
    <td align="center">作者:$author  发布时间:$datetime</td>
  </tr>
  <tr>
    <td>$content</td>
  </tr>
</table>

思路:首先读取数据库中图片,链接,说明文字等数据,然后将读取到的数据写入首页图片切换效果的JS文件。