Javascript 在asp中单击按钮上载文件

我正在使用WinCE操作系统开发经典ASP。我想从WinCE上传一个文件并保存在本地机器中。请共享文件上传所需的JScript函数，我可以将其放入包含文件中。谢谢。

更好的方法是使用任何JavaScript库。。比如jQuery

以下是文件上载示例

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干杯：

我没有关于asp classic的信息，但我使用了asp.net，您可以使用asp接收文件，以便从wince上传文件。使用c可以开发应用程序。这里是一个示例

它的客户端WinCE应用程序代码函数Uploadstring Path，String FileName将文件路径和文件名作为输入，并将其发布到网页

#region Upload
public bool Upload(string FilePath, string FileName)
{
string Url = "HTTP://test.mtsonweb.com/fileupload.ashx"; //  Change it to your page name
string BytesConfirmedReceived = "";
int BytesSent = 0;
bool Ret = false;
ASCIIEncoding encoding = new ASCIIEncoding();
try
{

if (File.Exists(FilePath +"\\"+ FileName) == false) { return true; }

//FileInfo oInfo = new FileInfo(FilePath + "\\" + FileName);
//BytesSent = Convert.ToInt32(oInfo.Length.ToString());

Url += "?myfile=" + FileName.Trim();

FileStream fr = new FileStream(FilePath + "\\" + FileName, FileMode.Open);

BinaryReader r = new BinaryReader(fr);
byte[] FileContents = r.ReadBytes((int)fr.Length);
BytesSent = FileContents.Length;

r.Close();
fr.Close();

WebRequest oRequest = WebRequest.Create(Url);

oRequest.Method = "POST";

oRequest.Timeout = 15000;

oRequest.ContentLength = FileContents.Length;

Stream oStream = oRequest.GetRequestStream();

BinaryWriter oWriter = new BinaryWriter(oStream);

oWriter.Write(FileContents);

oWriter.Close();

oStream.Close();

WebResponse oResponse = oRequest.GetResponse();
BytesConfirmedReceived = new StreamReader(oResponse.GetResponseStream(),
Encoding.Default).ReadToEnd();

oResponse.Close();

if (BytesSent.ToString() == BytesConfirmedReceived.Trim())
{
Ret = true;
}

}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
return Ret;

}
#endregion

现在您可以使用脚本处理上传的文件了，我使用了asp.net和c作为后端，下面是页面的源代码：

<%@ WebHandler Language="C#" Class="FileUpload" %>
using System;
using System.Xml;
using System.Data;
using System.Web;
using System.IO;
using System.Text;
using System.Runtime.InteropServices;
using System.Drawing;

public class FileUpload : IHttpHandler
{
public void ProcessRequest(HttpContext oContext)
{

int BytesSent = 0;
//string LocalPath = @"C:\Inetpub\wwwroot\";

string MyFile = "";


try
{

MyFile = oContext.Request["myfile"].ToString().Trim();
MyFile = HttpContext.Current.Server.MapPath("~/Demo/Files/" +

ASCIIEncoding encoding = new ASCIIEncoding();

BytesSent = oContext.Request.TotalBytes;

Class1 obj = Class1.GetInstance();

obj.FileName = MyFile;
obj.FileLength = BytesSent;

byte[] InComingBinaryArray =
oContext.Request.BinaryRead(oContext.Request.TotalBytes);
obj.Data = InComingBinaryArray;

if (File.Exists(MyFile) == true)
{
File.Delete(MyFile);
}

FileStream fs = new FileStream(MyFile, FileMode.CreateNew);
BinaryWriter w = new BinaryWriter(fs);
w.Write(InComingBinaryArray);
w.Close();
fs.Close();

FileInfo oInfo = new FileInfo(MyFile);
long a = (long)BytesSent;

oContext.Response.Write(oInfo.Length.ToString());

}
catch (Exception err) { oContext.Response.Write(err.Message); }

}

public bool IsReusable { get { return true; } }

}

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谢谢你提醒德里克，我已经接受了答案。现在请帮我上传文件。我对问题进行了升级，这样更多的人可以帮助你。我不能使用JQuery插件，因为它来自WinCE操作系统和经典ASP。请建议另一种方法。你需要纯javascript解决方案吗？这是一种老方法。。但看看它是否能起作用