溫馨提示×
您好，登錄后才能下訂單哦！
點擊 登錄注冊 即表示同意《億速云用戶服務條款》
您好，登錄后才能下訂單哦！
ASP.NET中怎么實現大文件上傳功能，相信很多沒有經驗的人對此束手無策，為此本文總結了問題出現的原因和解決方法，通過這篇文章希望你能解決這個問題。
上傳頁面：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="index.aspx.cs" Inherits="_Default" %> <%@ Register Assembly="Brettle.Web.NeatUpload" Namespace="Brettle.Web.NeatUpload" TagPrefix="Upload" %> <!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 runat="server"> <title></title> <link href="easyui/themes/default/easyui.css" rel="stylesheet" type="text/css" /> <link href="easyui/themes/icon.css" rel="stylesheet" type="text/css" /> <script src="easyui/jquery.min.js" type="text/javascript"></script> <script src="easyui/jquery.easyui.min.js" type="text/javascript"></script> </head> <body> <form id="form1" runat="server"> <div class="easyui-panel" > <Upload:ProgressBar ID="ProgressBar1" runat='server'> </Upload:ProgressBar> <br /> <Upload:InputFile ID="AttachFile" runat="server" /> <br /> <br /> <asp:LinkButton ID="BtnUP" runat="server" class="easyui-linkbutton" data-options="iconCls:'icon-add'" onclick="BtnUP_Click">上 傳</asp:LinkButton><br /><br /> <a href="Down.aspx">查看下載</a> </div> </form> </body> </html>
后臺源碼：
protected void BtnUP_Click(object sender, EventArgs e)
{
if (AttachFile.HasFile)
{
string FileName = this.AttachFile.FileName;//獲取上傳文件的文件名,包括后綴
string ExtenName = System.IO.Path.GetExtension(FileName);//獲取擴展名
string SaveFileName = System.IO.Path.Combine(System.Web.HttpContext.Current.Request.MapPath("UpLoads/"), DateTime.Now.ToLongDateString().ToString() + "-" + FileName);//合并兩個路徑為上傳到服務器上的全路徑
AttachFile.MoveTo(SaveFileName, Brettle.Web.NeatUpload.MoveToOptions.Overwrite);
string url = "UpLoads/" + DateTime.Now.ToString("yyyyMMddhhmmss") + ExtenName; //文件保存的路徑
float FileSize = (float)System.Math.Round((float)AttachFile.ContentLength / 1024000, 1); //獲取文件大小并保留小數點后一位,單位是M
Response.Write("<script>alert('恭喜您，上傳成功!')</script>");
}
else
{
Response.Write("<script>alert('請選擇文件！')</script>");
}
}這里直接獲取上傳文件夾文件名稱提供下載
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Down.aspx.cs" Inherits="Down" %>
<!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 runat="server">
<title></title>
<link href="easyui/themes/default/easyui.css" rel="stylesheet" type="text/css" />
<link href="easyui/themes/icon.css" rel="stylesheet" type="text/css" />
<script src="easyui/jquery.min.js" type="text/javascript"></script>
<script src="easyui/jquery.easyui.min.js" type="text/javascript"></script>
<style type="text/css">
.div_style ul li
{
list-style-type: decimal;
border-bottom:1px dashed #E3E3E3;
margin-bottom:5px;
}
.div_style ul li a
{
text-decoration: none;
cursor: pointer;
font-size: 16px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div class="div_style easyui-panel" >
<a href="index.aspx">上傳文件</a>
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
<ul id="www_zzjs_net">
<%if (files.Length == 0) { Label1.Text = "暫無文件"; }
else
{
foreach (System.IO.FileInfo item in files)
{%>
<li><a href="Default2.aspx?1=<%=item%>">
<%=item %></a> <a href="delete.aspx?1=<%=item%>" onclick="javascript:return confirm('確定刪除嗎？');" >刪除附件</a>
</li>
<% }
}%>
</ul>
</div>
<div id="changpage"></div>
<%--js分頁--%>
<%--<script language="javascript">
var obj, j;
var page = 0;
var nowPage = 0; //當前頁
var listNum = 25; //每頁顯示<ul>數
var PagesLen; //總頁數
var PageNum = 4; //分頁鏈接接數(5個)
onload = function () {
obj = document.getElementById("www_zzjs_net").getElementsByTagName("li");
j = obj.length
PagesLen = Math.ceil(j / listNum);
upPage(0)
}
function upPage(p) {
nowPage = p
//內容變換
for (var i = 0; i < j; i++) {
obj[i].style.display = "none"
}
for (var i = p * listNum; i < (p + 1) * listNum; i++) {
if (obj[i]) obj[i].style.display = "block"
} //歡迎來到站長特效網，我們的網址是www.zzjs.net，很好記，zz站長，js就是js特效，本站收集大量高質量js代碼，還有許多廣告代碼下載。
//分頁鏈接變換
strS = '<a href="###" onclick="upPage(0)">首頁</a> '
var PageNum_2 = PageNum % 2 == 0 ? Math.ceil(PageNum / 2) + 1 : Math.ceil(PageNum / 2)
var PageNum_3 = PageNum % 2 == 0 ? Math.ceil(PageNum / 2) : Math.ceil(PageNum / 2) + 1
var strC = "", startPage, endPage;
if (PageNum >= PagesLen) { startPage = 0; endPage = PagesLen - 1 }
else if (nowPage < PageNum_2) { startPage = 0; endPage = PagesLen - 1 > PageNum ? PageNum : PagesLen - 1 } //首頁
else { startPage = nowPage + PageNum_3 >= PagesLen ? PagesLen - PageNum - 1 : nowPage - PageNum_2 + 1; var t = startPage + PageNum; endPage = t > PagesLen ? PagesLen - 1 : t }
for (var i = startPage; i <= endPage; i++) {
if (i == nowPage) strC += '<a href="###" onclick="upPage(' + i + ')">' + (i + 1) + '</a> '
else strC += '<a href="###" onclick="upPage(' + i + ')">' + (i + 1) + '</a> '
} //歡迎來到站長特效網，我們的網址是www.zzjs.net，很好記，zz站長，js就是js特效，本站收集大量高質量js代碼，還有許多廣告代碼下載。
strE = ' <a href="###" onclick="upPage(' + (PagesLen - 1) + ')">尾頁</a> '
strE2 = nowPage + 1 + "/" + PagesLen + "頁" + " 共" + j + "條"
document.getElementById("changpage").innerHTML = strS + strC + strE + strE2
}
</script>--%>
</form>
</body>
</html>
//下面是后臺代碼
public FileInfo[] files { set; get; }
protected void Page_Load(object sender, EventArgs e)
{
string dirPath = HttpContext.Current.Server.MapPath("~/UpLoads");
if (Directory.Exists(dirPath))
{
DirectoryInfo dir = new DirectoryInfo(dirPath);
files = dir.GetFiles("*.*");
}
if (files.Length == 0) { Label1.Text = "暫無文件"; }
}
//這是新建另一個頁面提供下載的代碼
if (Request.QueryString["1"] != null)
{
string _filename = Request.QueryString["1"].ToString(), _filepath = System.IO.Path.Combine(MapPath("~/UpLoads"), _filename);
if (System.IO.File.Exists(_filepath))
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("Content-Disposition", "attachment;filename=" + _filename);
Response.ContentType = "application/unknow";
Response.TransmitFile(_filepath);
Response.End();
}
}
//這是新建另一個頁面提供刪除操作（后臺）
string _filename = Request.QueryString["1"].ToString(), _filepath = System.IO.Path.Combine(MapPath("~/UpLoads"), _filename);
if (System.IO.File.Exists(_filepath))
{
File.Delete(_filepath);
Response.Write("<script language=javascript>alert('刪除成功！');window.location = 'Down.aspx';</script>");
//Response.Redirect("Down.aspx");
}看完上述內容，你們掌握ASP.NET中怎么實現大文件上傳功能的方法了嗎？如果還想學到更多技能或想了解更多相關內容，歡迎關注億速云行業資訊頻道，感謝各位的閱讀！
免責聲明：本站發布的內容（圖片、視頻和文字）以原創、轉載和分享為主，文章觀點不代表本網站立場，如果涉及侵權請聯系站長郵箱：is@yisu.com進行舉報，并提供相關證據，一經查實，將立刻刪除涉嫌侵權內容。
