shawl.qiu c# .net upload class v1.1_c# upload up = new upload();-优快云博客

本文链接：https://blog.youkuaiyun.com/btbtd/article/details/1505687

介绍了一个简单易用的C# .NET上传组件，该组件适用于自动化画廊程序等场景，支持多种文件格式，提供了丰富的配置选项如自动重命名、上传间隔设置等。

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shawl.qiu c# .net upload class v1.1

没什么好说的, .NET 干这个真太容易了...

这几天在写一个自动化画廊程序, 需要用到上传功能, 就重写了一下先前写的上传类, 使其使用更方便更简洁...

目录:
1. x.aspx
2. cs/upload.cs

下载:
http://files.myopera.com/btbtd/csharp/class/sq_csharp_upload_v1.1.7z

shawl.qiu
2007-02-08
http://blog.youkuaiyun.com/btbtd

1. x.aspx

<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Assembly src="cs/upload.cs" %>
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>shawl.qiu template</title>
</head>
<body>
<script runat="server">
void Page_Load(Object s, EventArgs e)
{
upload up=new upload();
up.ext="7z,rar,zip,mp3,bmp,gif,jpg,jpeg,png,txt,swf";
up.debug=false;
up.item=5; // 声明显示多少个上传框
up.path="/uploads/"; // 上传目录;
up.goback_url=Request.Url+""; // 上传完毕后返回的 URL
up.goback_second=5; // 上传后返回间隔
up.interval=5; // 每次上传间隔, 单位秒
up.autorename=true; // 自动重命名;
// 声明处理所有返回路径的方法
//up.ReturnFilePath=new OneArgStringDelegate(GetPath);
up.UploadPh=sqUpload; // 声明显示上传控件的占位符
up.UploadBox(); // 显示上传操作控件
up=null;
}
public void GetPath(String sPath)
{
System.Web.HttpContext.Current.Response.Write(sPath);
}
</script>
<form runat="server">
<asp:PlaceHolder id="sqUpload" runat="server" />
</form>
</body>
</html>

2. cs/upload.cs

using System;
using System.Collections;
using System.IO;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
public delegate void OneArgStringDelegate(String Str);
/*-----------------------------------------------------------------------------------*/
* shawl.qiu c# .net upload class v1.1
/*-----------------------------------------------------------------------------------*/
//---------------------------------------------------------------------begin class upload
public class upload
{
//-----------------------------------begin event
public upload()
{
}
~upload()
{
}
//-----------------------------------end event
//-----------------------------------begin public constant
//-----------------------begin about
public const string auSubject="shawl.qiu c# .net upload class";
public const string auVersion="v1.1";
public const string au="shawl.qiu";
public const string auEmail="shawl.qiu@gmail.com";
public const string auBlog="http://blog.youkuaiyun.com/btbtd";
public const string auCreateDate="2007-1-30";
public const string auFirstUpdate="2007-2-8 v1.1";
//-----------------------end about
//-----------------------------------end public constant
//-----------------------------------begin public variable
public Boolean debug=false;
public Boolean autorename=false;
public String path="/uploads/";
public String ext="7z,rar,zip,mp3,bmp,gif,jpg,jpeg,png,txt,swf";
public String goback_url="?";
public Int32 interval=10;
public Int32 goback_second=10;
public Int32 item=5;
public Int32 totalsize=1024*5;
public Int32 singlesize=1024;
public PlaceHolder UploadPh;
public OneArgStringDelegate ReturnFilePath;
//-----------------------------------end public variable
//-----------------------------------begin public method
public void UploadBox()
{
if(UploadPh!=null)
{
UploadPh.Controls.Add(ErrorLabel);
UploadPh.Controls.Add(GobackLabel);
UploadPh.Controls.Add(UploadDetailsLabel);
InfoLabel=new Label();
InfoLabel.Text="<ul>/n"+
"<li>允许上传的文件类型<b>: "+ext+"</b></li>/n"+
"<li>每次总上传大小最大为 <b>: "+totalsize+"kb</b>, 每文件最大为 <b>"+
singlesize+"kb</b>.</li>/n"+
"<li>每次上传时间间隔为<b>: "+interval+"</b>秒.</li>/n"+
"</ul>";
UploadPh.Controls.Add(InfoLabel);
LiteralBox=new Literal();
LiteralBox.Text="<ol>";
UploadPh.Controls.Add(LiteralBox);
for(Int32 i=0; i<item; i++)
{
LiteralBox=new Literal();
LiteralBox.Text="<li>";
UploadPh.Controls.Add(LiteralBox);
UpInputItem = new HtmlInputFile();
UploadPh.Controls.Add(UpInputItem);
LiteralBox=new Literal();
LiteralBox.Text="</li>/n";
UploadPh.Controls.Add(LiteralBox);
}
LiteralBox=new Literal();
LiteralBox.Text="</br/>/n";
UploadPh.Controls.Add(LiteralBox);
SubmitButton=new Button();
SubmitButton.Text="Upload now";
SubmitButton.Click+=new EventHandler(go);
UploadPh.Controls.Add(SubmitButton);
LiteralBox=new Literal();
LiteralBox.Text=" <input type=/"reset/" value=/"reset/" />";
UploadPh.Controls.Add(LiteralBox);
LiteralBox=new Literal();
LiteralBox.Text="</ol>/n";
UploadPh.Controls.Add(LiteralBox);
}
} // end public void UploadBox
public void go(Object s, EventArgs e)
{
if(HttpContext.Current.Session["sqUpFl"]==null)
{
HttpContext.Current.Session["sqUpFl"]=DateTime.Now;
}
DateTime dtSession=DateTime.Parse(HttpContext.Current.Session["sqUpFl"]+"");
if(dtSession>DateTime.Now)
{
TimeSpan hasInterval=dtSession-DateTime.Now;
finished("每次上传时间间隔为 "+interval+" 秒, 请稍候...",
hasInterval.Seconds, goback_url, GobackLabel);
goto End;
}
//---------------------检测上传目录是否存在
String path_phs=HttpContext.Current.Server.MapPath(path);
if(!Directory.Exists(path_phs))
{
HttpContext.Current.
Response.Write("<h2>指定的上传目录不存在, 操作被取消.</h2>");
goto End;
}
Int32 upTotal=HttpContext.Current.Request.ContentLength/1024;
Int32 total=HttpContext.Current.Request.Files.AllKeys.Length;
ArrayList aUpsize=new ArrayList();
ArrayList aNoExt=new ArrayList();
ArrayList aNotAllowExt=new ArrayList();
ArrayList aFinished=new ArrayList();
if(upTotal>totalsize) goto Upsize;
for(Int32 i=0; i<total; i++)
{
System.Web.HttpPostedFile files=HttpContext.Current.Request.Files[i];
if(files.ContentLength>0)
{
String flnm=Path.GetFileName(files.FileName);
String justnm=Path.GetFileNameWithoutExtension(files.FileName);
String justext=Path.GetExtension(files.FileName);
String flph=path+justnm+justext;
String flph_phs=HttpContext.Current.Server.MapPath(flph);
//-----------------------------------单文件超出限制大小
Int32 flSize=files.ContentLength/1024;
if(flSize>singlesize)
{
aUpsize.Add("文件: "+flnm+", 大小为: "+flSize+" kb.");
continue;
}
if(!Path.HasExtension(flnm))
{
aNoExt.Add("文件: "+flnm+", 没有扩展名.");
continue;
}
String extTemp=Regex.Replace(justext,"^.","");
if(!Regex.IsMatch(ext, "//b"+extTemp+"//b", RegexOptions.IgnoreCase))
{
aNotAllowExt.Add("不允许上传的文件扩展: "+flnm);
continue;
}
if(File.Exists(flph_phs)) //------------------已存在相同同名文件
{
if(autorename)
{
Int32 iRename=1;
while(true)
{
String sNameTemp=HttpContext.Current.
Server.MapPath(path+justnm+"_"+(iRename++)+justext);
if(!File.Exists(sNameTemp))
{
flph_phs=sNameTemp;
goto SaveFile;
} // end if 3
} // end while
} // end if 2
} // end if 1
SaveFile:;
files.SaveAs(flph_phs);
String flnmTemp=Path.GetFileName(flph_phs);
aFinished.Add("文件: "+flnmTemp+" 已上传.");
allFilePath+=path+flnmTemp+",";
HttpContext.Current.Session["sqUpFl"]=
DateTime.Now.AddSeconds(interval);
} // end if
} // end for
goto Report;
Upsize:
ErrorLabel.Text+="<h2 style='text-align:center;'>上传大小超出限制, 已被终止.</h2>";
finished(goback_second+" 秒后返回, 还有 ",
goback_second, goback_url, GobackLabel);
goto End;
Report:
listAl("已上传文件 ", aFinished, UploadDetailsLabel);
listAl("单文件超出限制大小的有 ", aUpsize, UploadDetailsLabel);
listAl("没有文件扩展名的有 ", aNoExt, UploadDetailsLabel);
listAl("不允许上传的文件扩展有 ", aNotAllowExt, UploadDetailsLabel);
goto Finished;
Finished:
finished("操作已完毕, "+goback_second+" 秒后返回, 还有 ",
goback_second, goback_url, GobackLabel);
End:
allFilePath=Regex.Replace(allFilePath,",$","");
if(ReturnFilePath!=null)
{
ReturnFilePath(allFilePath);
}
} // end go
//-----------------------------------end public method
//-----------------------------------begin private variable
private String allFilePath="";
private Label InfoLabel;
private Label GobackLabel=new Label();
private Label UploadDetailsLabel=new Label();
private Label ErrorLabel=new Label();
private Literal LiteralBox;
private Button SubmitButton;
private HtmlInputFile UpInputItem;
//-----------------------------------end private variable
//-----------------------------------begin private method
private void listAl(String sDetail, ArrayList oAl, Label UploadDetailsLabel)
{
if(oAl.Count>0)
{
UploadDetailsLabel.Text="<ol><label>"+sDetail+"<b>"+
oAl.Count+"个</b>.</label>";
foreach(Object item in oAl)
{
UploadDetailsLabel.Text+="<li>"+item+"</li>";
}
UploadDetailsLabel.Text+="</ol><hr/>";
}
}
private void finished(String sPrompt, Int32 iSecond, String sUrl, Label GobackLabel)
{
GobackLabel.Text+="<script type=/"text/javascript/">/n";
GobackLabel.Text+="//<![CDATA[/n";
GobackLabel.Text+=" var temp=onload;/n";
GobackLabel.Text+=" onload=function(){/n";
GobackLabel.Text+=" try{temp()}catch(e){}/n";
GobackLabel.Text+=" fTimer("+iSecond+",'timer', 10);/n";
GobackLabel.Text+=" }/n";
GobackLabel.Text+=" function fTimer(iTimestamp, sId, iMs){/n";
GobackLabel.Text+=" if(!(iTimestamp.constructor==Date)){/n";
GobackLabel.Text+=" var sqTimeStamp=new Date();/n";
GobackLabel.Text+=" sqTimeStamp.setSeconds(sqTimeStamp.getSeconds()+iTimestamp);/n";
GobackLabel.Text+=" iTimestamp=sqTimeStamp;/n";
GobackLabel.Text+=" }/n";
GobackLabel.Text+=" var tl=arguments.callee;/n";
GobackLabel.Text+=" if(typeof sId=='string'){/n";
GobackLabel.Text+=" var oEle=document.getElementById(sId);/n";
GobackLabel.Text+=" } else {/n";
GobackLabel.Text+=" var oEle=sId;/n";
GobackLabel.Text+=" }/n";
GobackLabel.Text+=" var dt=new Date();/n";
GobackLabel.Text+=" var iCk=((iTimestamp.getTime()-dt.getTime())/1000).toFixed(3);/n";
GobackLabel.Text+=" if(iCk<=0){/n";
GobackLabel.Text+=" oEle.innerHTML='00.000';/n";
GobackLabel.Text+=" return false;/n";
GobackLabel.Text+=" } else {/n";
GobackLabel.Text+=" oEle.innerHTML=iCk;/n";
GobackLabel.Text+=" var iTimer=setTimeout(function(){tl(iTimestamp, oEle, iMs)},iMs); /n";
GobackLabel.Text+=" }/n";
GobackLabel.Text+=" } // end function fTimer // shawl.qiu script/n";
GobackLabel.Text+="//]]>/n";
GobackLabel.Text+="</script>/n";
GobackLabel.Text+="<meta http-equiv=/"Content-Type/" content=/"text/html; charset=utf-8/" />";
GobackLabel.Text+="<meta http-equiv=/"refresh/" content=/""+iSecond+";URL="+sUrl+"/">";
GobackLabel.Text+="<div style=/"display:table;width:100%;background-color:yellow!important;"+
"color:black!important;text-align:center!important;/">"+
sPrompt+", <span id='timer'>"+iSecond+"</span>秒后返回.</div>";
}
//-----------------------------------end private method
}
//---------------------------------------------------------------------end class upload