在DLL方法
'文件上传
Public Function fileup()
'//定义初始设置
Dim filesavepath As String = "upload" '文件保存目录
Dim newname As String '根据日期生成新文件名
newname = DateTime.Now.Year.ToString() & DateTime.Now.Month.ToString() & DateTime.Now.Day.ToString() & DateTime.Now.Minute.ToString() & DateTime.Now.Second.ToString()
Dim fileextension As String '文件类型
Dim filetype As String = ".rar,.zip,.doc" '文件上传类型定义
Dim maxfile As Integer = 1024 * 3000 '图像上传大小3000K
Dim msg As String
Dim files As HttpFileCollection = System.Web.HttpContext.Current.Request.Files
Dim fileoldname As String
Dim ifile As Integer
Dim upfile As HttpPostedFile
upfile = files(ifile)
fileoldname = System.IO.Path.GetFileName(upfile.FileName)
'文件开始上传
If fileoldname <> "" Then
Try
'文件类型检查
fileextension = System.IO.Path.GetExtension(upfile.FileName).ToLower()
If (filetype.IndexOf(fileextension) = -1) Then
msg = -1
Else
'文件大小检查
If (upfile.ContentLength > maxfile) Then
msg = 0
Else
'保存文件
upfile.SaveAs(Server.MapPath(filesavepath & "/" & newname & fileextension))
Session("upfile") = newname
msg = 1
End If
End If
Catch
msg = 2
End Try
End If
Return msg
End Function
前台调用的时候
Sub fileup(ByVal sender As System.Object, ByVal e As EventArgs)
If upfile.PostedFile.ContentLength > 0 Then
Select Case db.fileup
Case 1
upfile_res.Text = "上传成功"
file.Visible = False
Case -1
upfile_res.Text = "请检查文件类型是否允许上传"
Case 0
upfile_res.Text = "文件大小超过限制!"
Case 2
upfile_res.Text = "上传出现异常!请重新尝试!"
End Select
End If
End Sub
出现的情况的如果我先传图像,然后传附件就可以正常,但是如果我只传附件就老提示我文件大小超过限制,但是我查询过返回的msg值,居然是空的,那是为什么呢?很着急,请大家多帮助了
'文件上传
Public Function fileup()
'//定义初始设置
Dim filesavepath As String = "upload" '文件保存目录
Dim newname As String '根据日期生成新文件名
newname = DateTime.Now.Year.ToString() & DateTime.Now.Month.ToString() & DateTime.Now.Day.ToString() & DateTime.Now.Minute.ToString() & DateTime.Now.Second.ToString()
Dim fileextension As String '文件类型
Dim filetype As String = ".rar,.zip,.doc" '文件上传类型定义
Dim maxfile As Integer = 1024 * 3000 '图像上传大小3000K
Dim msg As String
Dim files As HttpFileCollection = System.Web.HttpContext.Current.Request.Files
Dim fileoldname As String
Dim ifile As Integer
Dim upfile As HttpPostedFile
upfile = files(ifile)
fileoldname = System.IO.Path.GetFileName(upfile.FileName)
'文件开始上传
If fileoldname <> "" Then
Try
'文件类型检查
fileextension = System.IO.Path.GetExtension(upfile.FileName).ToLower()
If (filetype.IndexOf(fileextension) = -1) Then
msg = -1
Else
'文件大小检查
If (upfile.ContentLength > maxfile) Then
msg = 0
Else
'保存文件
upfile.SaveAs(Server.MapPath(filesavepath & "/" & newname & fileextension))
Session("upfile") = newname
msg = 1
End If
End If
Catch
msg = 2
End Try
End If
Return msg
End Function
前台调用的时候
Sub fileup(ByVal sender As System.Object, ByVal e As EventArgs)
If upfile.PostedFile.ContentLength > 0 Then
Select Case db.fileup
Case 1
upfile_res.Text = "上传成功"
file.Visible = False
Case -1
upfile_res.Text = "请检查文件类型是否允许上传"
Case 0
upfile_res.Text = "文件大小超过限制!"
Case 2
upfile_res.Text = "上传出现异常!请重新尝试!"
End Select
End If
End Sub
出现的情况的如果我先传图像,然后传附件就可以正常,但是如果我只传附件就老提示我文件大小超过限制,但是我查询过返回的msg值,居然是空的,那是为什么呢?很着急,请大家多帮助了
<httpRuntime maxRequestLength="500000" />或者你可以分割文件,那样比较复杂
你上传的RAR文件有多大?是否超过默认值了?
As Integer ?这应该用整型吗?
<system.web>
<!-- 文件上传大小设置
-->
<httpRuntime maxRequestLength="400000"
executionTimeout="200"
/>
在HTML页码是
<TR class="tr1">
<TD align="center">上传图像</TD>
<TD>
<asp:Panel id="img" Runat="server"><INPUT class="tr1" id="upimg" type="file" size="32" runat="server" width="80%">
<asp:Button id="up_img" onclick="addimg" runat="server" Text="上传" BorderStyle="Groove"></asp:Button>
</asp:Panel><asp:Label id="upimg_res" runat="server"></asp:Label></TD>
</TR>
<TR class="tr2">
<TD align="center">上传附件</TD>
<TD >
<asp:Panel Width="60%" id="file" Runat="server"><INPUT class="tr2" id="upfile" type="file" size="32" runat="server" width="80%">
<asp:Button id="up_file" onclick="fileup" runat="server" Text="上传" BorderStyle="Groove"></asp:Button>
</asp:Panel><asp:Label id="upfile_res" runat="server"></asp:Label></TD>
</TR>
If upfile.PostedFile.ContentLength > 0 Then
Select Case db.fileup
Case 1
upfile_res.Text = "上传成功"
file.Visible = False
Case -1
upfile_res.Text = "请检查文件类型是否允许上传"
Case 0
upfile_res.Text = "文件大小超过限制!"
Case 2
upfile_res.Text = "上传出现异常!请重新尝试!"
End Select
'添加这个
upfile. upfile.Dispose()
End If
同样在上传图像的代码中也写了这个上去还是一样的,~~
天~~~~~~~~~~~为什么~~~~~~~~~~
在dll名称空间中的一个方法
dim db as new myweb.config
‘调用方法
db.fileup