图片上传问题

TTLOVEYOU3344 2006-08-06 04:06:46

<tr>
<td>新闻图片
</td>
<td><input id="up_file" type="file" name="up_file" runat="server">
</td>
</tr>
<tr>
<td>新闻出处图片
</td>
<td><input id="imgform" type="file" name="imgform" runat="server">
</td>
</tr>
如果我只上传一个图片没有问题，但如果上传两个图片就不行跳转到无法找到的页面，还是微软的机制的问题？

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purplesunshine 2006-09-29

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关注一下

WeekZero 2006-08-06

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多文件上传的例子，vs2003的
http://dotnet.aspx.cc/ShowDetail.aspx?id=58EA3515-36F2-4FD9-AC89-EAF49F59816C

你这个估计是超出了服务器相应的最大字节数了，看这2篇文章吧，能有些帮助

http://www.cnblogs.com/weekzero/archive/2005/09/13/235807.html
ASP.NET中上传大文件到服务器的解决方案

http://www.microsoft.com/china/msdn/library/webservices/asp.net/dnasppUploadASP2.mspx
在 ASP.NET 2.0 中上载文件

pfc001 2006-08-06

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在以前的Web应用中，上传文件是个很麻烦的事，现在有了.NET，文件上传变得轻而易举。下面的这个例子实现了多文件上传功能。可以动态添加输入表单，上传的文件数量没有限制。代码如下：

MultiUpload.aspx

<%@ Page Language="vb" AutoEventWireup="false" Codebehind="MultiUpload.aspx.vb"
Inherits="aspxWeb.MultiUpload" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>多文件上传</title>
<script language="JavaScript">
function addFile()
{
var str = '<INPUT type="file" size="50" NAME="File">'
document.getElementById('MyFile').insertAdjacentHTML("beforeEnd",str)
}
</script>
</HEAD>
<body>
<form id="form1" method="post" runat="server" enctype="multipart/form-data">
<center>
<asp:Label Runat="server" ID="MyTitle"></asp:Label>
<P id="MyFile"><INPUT type="file" size="50" NAME="File"></P>
<P>
<input type="button" value="增加(Add)" onclick="addFile()">
<asp:Button Runat="server" Text="上传" ID="Upload"></asp:Button>
<input onclick="this.form.reset()" type="button" value="重置(ReSet)">
</P>
</center>
<P align="center">
<asp:Label id="strStatus" runat="server" Font-Names="宋体" Font-Bold="True"
Font-Size="9pt" Width="500px" BorderStyle="None" BorderColor="White"></asp:Label>
</P>
</form>
</body>
</HTML>

后代码：MultiUpload.aspx.vb

Public Class MultiUpload
Inherits System.Web.UI.Page
Protected WithEvents Upload As System.Web.UI.WebControls.Button
Protected WithEvents MyTitle As System.Web.UI.WebControls.Label
Protected WithEvents strStatus As System.Web.UI.WebControls.Label

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

End Sub

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init
'CODEGEN: This method call is required by the Web Form Designer
'Do not modify it using the code editor.
InitializeComponent()
End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
MyTitle.Text = "<h3>多文件上传</h3>"
Upload.Text = "开始上传"
If (Me.IsPostBack) Then Me.SaveImages()
End Sub

Private Function SaveImages() As System.Boolean
'遍历File表单元素
Dim files As System.Web.HttpFileCollection = System.Web.HttpContext.Current.Request.Files

'状态信息
Dim strMsg As New System.Text.StringBuilder("上传的文件分别是：<hr color=red>")
Dim iFile As System.Int32
Try
For iFile = 0 To files.Count - 1
'检查文件扩展名字
Dim postedFile As System.Web.HttpPostedFile = files(iFile)
Dim fileName, fileExtension As System.String
fileName = System.IO.Path.GetFileName(postedFile.FileName)
If Not (fileName = String.Empty) Then
fileExtension = System.IO.Path.GetExtension(fileName)
strMsg.Append("上传的文件类型：" + postedFile.ContentType.ToString() + "<br>")
strMsg.Append("客户端文件地址：" + postedFile.FileName + "<br>")
strMsg.Append("上传文件的文件名：" + fileName + "<br>")
strMsg.Append("上传文件的扩展名：" + fileExtension + "<br><hr>")
'可根据扩展名字的不同保存到不同的文件夹
postedFile.SaveAs(System.Web.HttpContext.Current.Request.MapPath("images/") + fileName)
End If
Next
strStatus.Text = strMsg.ToString()
Return True
Catch Ex As System.Exception
strStatus.Text = Ex.Message
Return False
End Try
End Function
End Class

zhangxiaopin 2006-08-06

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//******可能是你写的程序有dug

//*****自己写一个函数可以同时上传多个文件

//******代码
public static void AddUpLoadFileServices(Arraylist arylist,ref ListBox ltbList,ref HtmlInputFile htmlfile)
{
arylist.add(htmlfile);
ltbList.items.add(htmlfile.postname.filename);
}

//****移出上传的文件
public static void RemoveAtUpLoadFile(Arraylist arylist,ref listBox ltblist)
{
if(ltblist.items.count>0)
{

arylist.removeat(ltblist.selectindex);
ltblist.items.remove(ltblist.selectitems.text):
}
}

//*****保存你选择的上传文件
public static void SaveUpLoadFile(Arraylist arylist,ref ListBox ltblist,ref string UpLoadFilePath)
{
if(ltblist.items.count>0)
{
foreach(htmlinputfile btnupload in arylist)
{
btnupload.postname.saveas(uploadfilepath+"\\"+GetFileName(btnupload.postname.filename));
}
}
}

Knight94 2006-08-06