shawl.qiu c# .net upload v1.0

类别： CSharp.Net, 类库
标签： upload, .net, uploader, c#
摘要： 语法比 ASP 简洁太多了.
正文：
1. cs/upload.cs
2.aspx  调用

1. cs/upload.cs
  1. using System;
  2. using System.Collections;
  3. using System.Data;
  4. using System.IO;
  5. using System.Text.RegularExpressions;
  6. using System.Web;

  8. /*-----------------------------------------------------------------------------------*\
  9.  * shawl.qiu c# .net upload v1.0
  10. \*-----------------------------------------------------------------------------------*/
  11. //---------------------------------------------------------------------begin class upload
  12. public class upload
  13. {
  14.  //-----------------------------------begin event
  15.  public upload()
  16.  {
  17.  }
  18.  
  19.  ~upload()
  20.  {
  21.  }
  22.  //-----------------------------------end event
  23.  
  24.  //-----------------------------------begin public constant
  25.  //-----------------------begin about
  26.  public const string auSubject="shawl.qiu c# .net upload";
  27.  public const string auVersion="v1.0";
  28.  public const string au="shawl.qiu";
  29.  public const string auEmail="shawl.qiu@gmail.com";
  30.  public const string auBlog="http://blog.csdn.net/btbtd";
  31.  public const string auCreateDate="2007-1-30";
  32.  //-----------------------end about
  33.  //-----------------------------------end public constant
  34.  
  35.  //-----------------------------------begin private constant
  36.  //-----------------------------------end private constant
  37.  
  38.  //-----------------------------------begin public static method
  39.  //-----------------------------------end public static method
  40.  
  41.  //-----------------------------------begin private static method
  42.  //-----------------------------------end private static method
  43.  
  44.  //-----------------------------------begin public variable
  45.  public Boolean debug=false;
  46.  public Boolean autorename=false;
  47.  
  48.  public String path="/uploads/";
  49.  public String ext="7z,rar,zip,mp3,bmp,gif,jpg,jpeg,png,txt,swf";
  50.  public String goback_url="?";
  51.  public String allFilePath="";
  52.  
  53.  public Int32 interval=10;
  54.  public Int32 goback_second=10;
  55.  public Int32 item=5;
  56.  public Int32 totalsize=1024*5;
  57.  public Int32 singlesize=1024;
  58.  //-----------------------------------end public variable
  59.  
  60.  //-----------------------------------begin public method
  61.  public void info(System.Web.UI.HtmlControls.HtmlContainerControl oSpan)
  62.  {
  63.   oSpan.InnerHtml="<ol>"+
  64.    "<li>允许上传的文件类型<b>: "+this.ext+"</b></li>"+
  65.    "<li>每次总上传大小最大为 <b>: "+this.totalsize+"kb</b>, 每文件最大为 <b>"+
  66.    this.singlesize+"kb</b>.</li>"+
  67.    "<li>每次上传时间间隔为<b>: "+this.interval+"</b>秒.</li>"+
  68.    "</ol>";
  69.  }
  70.  
  71.  public void getItem(System.Web.UI.WebControls.Repeater rpt)
  72.  {
  73.   DataTable dt = new DataTable();
  74.   DataRow dr;
  75.   dt.Columns.Add(new DataColumn("id", typeof(Int32)));
  76.   
  77.   for (int i = 0; i < this.item; i++) 
  78.   {
  79.    dr = dt.NewRow();
  80.    dr[0] = i;
  81.    dt.Rows.Add(dr);
  82.   } // end for
  83.   
  84.    rpt.DataSource=new DataView(dt);
  85.    rpt.DataBind();
  86.  } // end public void getItem
  87.  
  88.  public void go()
  89.  {
  90.   if(HttpContext.Current.Session["sqUpFl"]==null)
  91.   {
  92.    HttpContext.Current.Session["sqUpFl"]=DateTime.Now;
  93.   }
  94.   
  95.   DateTime dtSession=DateTime.Parse(HttpContext.Current.Session["sqUpFl"]+"");

  97.   if(dtSession>DateTime.Now)
  98.   {
  99.    TimeSpan hasInterval=dtSession-DateTime.Now;
  100.    
  101.    finished("每次上传时间间隔为 "+this.interval+" 秒, 请稍候...",
  102.     hasInterval.Seconds, this.goback_url);
  103.    goto End;
  104.   }
  105.   
  106.   //---------------------检测上传目录是否存在
  107.   String path_phs=HttpContext.Current.Server.MapPath(path);
  108.   if(!Directory.Exists(path_phs))
  109.   {
  110.    HttpContext.Current.
  111.     Response.Write("<h2>指定的上传目录不存在, 操作被取消.</h2>");
  112.    goto End;
  113.   }
  114.   
  115.   Int32 upTotal=HttpContext.Current.Request.ContentLength/1024;
  116.   Int32 total=HttpContext.Current.Request.Files.AllKeys.Length;
  117.   
  118.   ArrayList aUpsize=new ArrayList();
  119.   ArrayList aNoExt=new ArrayList();
  120.   ArrayList aNotAllowExt=new ArrayList();
  121.   ArrayList aFinished=new ArrayList();
  122.   
  123.   if(upTotal>this.totalsize) goto Upsize;
  124.    
  125.   for(Int32 i=0; i<total; i++)
  126.   {
  127.    System.Web.HttpPostedFile files=HttpContext.Current.Request.Files[i];
  128.    if(files.ContentLength>0)
  129.    { 
  130.     String flnm=Path.GetFileName(files.FileName);
  131.     String justnm=Path.GetFileNameWithoutExtension(files.FileName);
  132.     String justext=Path.GetExtension(files.FileName);
  133.     
  134.     String flph=this.path+justnm+justext;
  135.     String flph_phs=HttpContext.Current.Server.MapPath(flph);
  136.     
  137.     //-----------------------------------单文件超出限制大小
  138.     Int32 flSize=files.ContentLength/1024;
  139.     if(flSize>this.singlesize)
  140.     {
  141.      aUpsize.Add("文件: "+flnm+", 大小为: "+flSize+" kb.");
  142.      continue;
  143.     }    
  144.     
  145.     if(!Path.HasExtension(flnm))
  146.     {
  147.      aNoExt.Add("文件: "+flnm+", 没有扩展名.");
  148.      continue;
  149.     }
  150.     
  151.     String extTemp=Regex.Replace(justext,"^.","");
  152.     if(!Regex.IsMatch(this.ext, "\\b"+extTemp+"\\b", RegexOptions.IgnoreCase))
  153.     {
  154.      aNotAllowExt.Add("不允许上传的文件扩展: "+flnm);
  155.      continue;
  156.     }
  157.     
  158.     if(File.Exists(flph_phs)) //------------------已存在相同同名文件
  159.     {
  160.      if(autorename)
  161.      { 
  162.       Int32 iRename=1;
  163.       while(true)
  164.       {
  165.        String sNameTemp=HttpContext.Current.
  166.         Server.MapPath(this.path+justnm+"_"+(iRename++)+justext);
  167.        if(!File.Exists(sNameTemp))
  168.        {
  169.         flph_phs=sNameTemp;
  170.         goto SaveFile;
  171.        } // end if 3
  172.       } // end while
  173.      } // end if 2
  174.     } // end if 1
  175.     SaveFile:;
  176.      files.SaveAs(flph_phs);
  177.   
  178.      String flnmTemp=Path.GetFileName(flph_phs);
  179.      aFinished.Add("文件: "+flnmTemp+" 已上传.");
  180.      
  181.      this.allFilePath+=this.path+flnmTemp+",";
  182.      
  183.      HttpContext.Current.Session["sqUpFl"]=
  184.       DateTime.Now.AddSeconds(this.interval);
  185.    } // end if
  186.   } // end for
  187.   goto Report;
  188.   
  189.   Upsize:
  190.    HttpContext.Current.Response.Write("<h2>上传大小超出限制, 已被终止.</h2>");
  191.   goto End;
  192.    
  193.   Report:
  194.    listAl("已上传文件 ", aFinished);
  195.    listAl("单文件超出限制大小的有 ", aUpsize);
  196.    listAl("没有文件扩展名的有 ", aNoExt);
  197.    listAl("不允许上传的文件扩展有 ", aNotAllowExt);
  198.   goto Finished;
  199.   
  200.   Finished:
  201.    finished("操作已完毕", this.goback_second, this.goback_url);
  202.   End: 
  203.    this.allFilePath=Regex.Replace(this.allFilePath,",$","");
  204.  } // end go
  205.  //-----------------------------------end public method
  206.  
  207.  //-----------------------------------begin private variable
  208.  //-----------------------------------end private variable
  209.  
  210.  //-----------------------------------begin private method
  211.  private void listAl(String sDetail, ArrayList oAl)
  212.  {
  213.   if(oAl.Count>0)
  214.   {
  215.    HttpContext.Current.Response.Write("<ol><label>"+sDetail+"<b>"+
  216.     oAl.Count+"个</b>.</label>");
  217.    foreach(Object item in oAl)
  218.    {
  219.     HttpContext.Current.Response.Write("<li>"+item+"</li>");
  220.    }
  221.    HttpContext.Current.Response.Write("</ol><hr/>");
  222.   }
  223.  }
  224.  
  225.  private void finished(String sPrompt, Int32 iSecond, String sUrl)
  226.  {
  227.   HttpContext.Current.Response.Write("<script type=\"text/javascript\">\n");
  228.   HttpContext.Current.Response.Write("//<![CDATA[\n");
  229.   HttpContext.Current.Response.Write(" var temp=onload;\n");
  230.   HttpContext.Current.Response.Write(" onload=function(){\n");
  231.   HttpContext.Current.Response.Write("  try{temp()}catch(e){}\n");
  232.   HttpContext.Current.Response.Write("  fTimer("+iSecond+",'timer', 10);\n");
  233.   HttpContext.Current.Response.Write(" }\n");
  234.   HttpContext.Current.Response.Write("  function fTimer(iTimestamp, sId, iMs){\n");
  235.   HttpContext.Current.Response.Write("  if(!(iTimestamp.constructor==Date)){\n");
  236.   HttpContext.Current.Response.Write("   var sqTimeStamp=new Date();\n");
  237.   HttpContext.Current.Response.Write("   sqTimeStamp.setSeconds(sqTimeStamp.getSeconds()+iTimestamp);\n");
  238.   HttpContext.Current.Response.Write("   iTimestamp=sqTimeStamp;\n");
  239.   HttpContext.Current.Response.Write("  }\n");
  240.   HttpContext.Current.Response.Write("    var tl=arguments.callee;\n");
  241.   HttpContext.Current.Response.Write("    if(typeof sId=='string'){\n");
  242.   HttpContext.Current.Response.Write("   var oEle=document.getElementById(sId);\n");
  243.   HttpContext.Current.Response.Write("  } else {\n");
  244.   HttpContext.Current.Response.Write("   var oEle=sId;\n");
  245.   HttpContext.Current.Response.Write("  }\n");
  246.   HttpContext.Current.Response.Write("  var dt=new Date();\n");
  247.   HttpContext.Current.Response.Write("  var iCk=((iTimestamp.getTime()-dt.getTime())/1000).toFixed(3);\n");
  248.   HttpContext.Current.Response.Write("  if(iCk<=0){\n");
  249.   HttpContext.Current.Response.Write("   oEle.innerHTML='00.000';\n");
  250.   HttpContext.Current.Response.Write("   return false;\n");
  251.   HttpContext.Current.Response.Write("  } else {\n");
  252.   HttpContext.Current.Response.Write("   oEle.innerHTML=iCk;\n");
  253.   HttpContext.Current.Response.Write("   var iTimer=setTimeout(function(){tl(iTimestamp, oEle, iMs)},iMs); \n");
  254.   HttpContext.Current.Response.Write("  }\n");
  255.   HttpContext.Current.Response.Write(" } // end function fTimer // shawl.qiu script\n");
  256.   HttpContext.Current.Response.Write("//]]>\n");
  257.   HttpContext.Current.Response.Write("</script>\n");

  259.   HttpContext.Current.
  260.    Response.Write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />");
  261.    HttpContext.Current.
  262.     Response.Write("<meta http-equiv=\"refresh\" content=\""+iSecond+";URL="+sUrl+"\">");
  263.   HttpContext.Current.
  264.    Response.Write("<div style=\"display:table;width:100%;background-color:yellow!important;"+
  265.     "color:black!important;text-align:center!important;\">"+
  266.     sPrompt+", <span id='timer'>"+iSecond+"</span>秒 后返回.</div>");
  267.  }
  268.  //-----------------------------------end private method
  269.  
  270.  //-----------------------------------begin public property
  271.  //-----------------------------------end public property
  272.   
  273.  //-----------------------------------begin private property
  274.  //-----------------------------------end private property
  275. }
  276. //---------------------------------------------------------------------end class upload


2.aspx  调用
  1. <%@ Page Language="C#" src="cs/upload.cs" AutoEventWireup="True" %>
  2. <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  3. <html xmlns="http://www.w3.org/1999/xhtml">
  4. <head>
  5. <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  6. <title>shawl.qiu template</title>
  7. </head>
  8. <body>
  9. <script runat="server">
  10.  void Page_Load(Object s, EventArgs e)
  11.  {
  12.   upload up=new upload();
  13.   up.item=5;
  14.   up.info(spnInfo);
  15.   up.getItem(aspRpt);
  16.   up=null;
  17.  }
  18.  
  19.  void btn_up(Object s, EventArgs e)
  20.  {
  21.   upload up=new upload();
  22.   
  23.   up.debug=true;
  24.   up.path="/uploads/";           // 上传目录;
  25.   up.goback_url=Request.Url+"";  // 上传完毕后返回的 URL
  26.   up.goback_second=20;           // 上传后返回间隔
  27.   up.interval=20;                // 每次上传间隔, 单位秒
  28.   up.autorename=true;            // 自动重命名;
  29.   up.go();                       // 执行上传操作; 
  30.   //Response.Write(up.allFilePath);// 返回已上传的所有文件路径, 以逗号(,)分隔.
  31.   
  32.   up=null;
  33.  }

  35. </script>
  36.  <form runat="server">
  37.   <span id='spnReport' runat='server'></span>
  38.   <span id='spnInfo' runat='server'></span>
  39.   <ol>
  40.    <asp:Repeater id="aspRpt" runat="server">
  41.     <ItemTemplate>
  42.      <li><input type='file' runat='server' /></li>
  43.     </ItemTemplate>
  44.    </asp:Repeater>
  45.   </ol>  
  46.   <li/><input type='submit' OnServerClick="btn_up" runat='server' />
  47.  </form>
  48. </body>
  49. </html>
  50.  
文章相关信息:
主题: shawl.qiu c# .net upload v1.0
发表者: shawl.qiu
电子邮件: shawl.qiu@gmail.com
QQ: 908202921
MSN: btbtd@msn.com
Homepage: http://www.btbtd.org/
Blog: http://blog.csdn.net/btbtd/
发表日期: 2007-1-30 16:46:13
更新日期: 2007-1-30 16:46:13
来源引用: shawl.qiu CSharp DotNet 个人资料管理系统
引用本页: http://gi.2288.org/mod/code/display/Default.aspx?aid=247
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