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HTML的代码:(关键是要在form里设置enctype="multipart/form-data",这样才能在提交表单时,将文件以二进制流的形式传输到服务器) <form id="form1" runat="server" method="post" enctype="multipart/form-data"> <div> <input type="file" /> <asp:Button ID="btnUpload" runat="server" Text="开始上传" onclick="btnUpload_Click" /> </div> </form> aps.net后台代码(C#): protected void btnUpload_Click(object sender, EventArgs e) { //int intCount = RequestClass.GetFormInt("hdcount", -1); HttpFileCollection Files = HttpContext.Current.Request.Files; for (int i = 0; i < Files.Count; i++) { HttpPostedFile PostedFile = Files[i]; if (PostedFile.ContentLength > 0) { string FileName = PostedFile.FileName; string strExPrentFile = FileName.Substring(FileName.LastIndexOf(".") + 1); string sFilePath = "/uploadfile/hotel/" + StringClass.makeFileName24() + i + strExPrentFile; PostedFile.SaveAs(Server.MapPath(sFilePath)); } else { //this.LabMessage.Text = "不能上传空文件"; } } }
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