Asp.net 檔案上傳的執行個體

最後更新：2018-12-07 來源：互聯網

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<%@ page Language = "C#" debug = "true" %>
<%@ Import Namespace = "System.IO" %>
<script language = "C#" runat = "server">

public void uploadFile(object sender , EventArgs E) {
//檢查上傳檔案不為空白
if(inputFile.PostedFile.ContentLength > 0) {
//設定上傳檔案的儲存路徑
string strSaveDir = "./upload/";
string strName = inputFile.PostedFile.FileName;
//取得檔案名稱(抱括路徑)裡最後一個"."的索引
int intExt = strName.LastIndexOf(".");
//取得副檔名
string strExt = strName.Substring(intExt);
//這裡我自動根據日期和檔案大小不同為檔案命名,確保檔案名稱不重複
/*
DateTime datNow = DateTime.Now;
string strNewName = datNow.DayOfYear.ToString() + inputFile.PostedFile.ContentLength.ToString() + strExt; */
//取得檔案名稱(包括路徑)裡最後一個"\"的索引
int intPath = strName.LastIndexOf("\\");
//取得檔案名稱(不包括路徑)
string strNewName = strName.Substring(intPath);
//儲存檔案到你所要的目錄,這裡是IIS根目錄下的upload目錄.你可以改變.
//注意: 我這裡用Server.MapPath()取當前檔案的絕對目錄.在asp.net裡"\"必須用"\\"代替
inputFile.PostedFile.SaveAs(Server.MapPath(strSaveDir + strNewName));
//得到這個檔案的相關屬性:檔案名稱,檔案類型,檔案大小
labelUpResult.Text = "上傳成功！";
labelFileName.Text = "檔案源：" + strName;
labelFileExt.Text = "檔案類型：" + inputFile.PostedFile.ContentType + "( " + strExt + " )";
labelFileSize.Text = "檔案大小：" + (inputFile.PostedFile.ContentLength / 1024).ToString() + " K Byte(s)";
} else {
labelUpResult.Text = "請選擇你要上傳的檔案！";
labelFileName.Text = "";
labelFileExt.Text = "";
labelFileSize.Text = "";
}
}
</script>

</div>
</body>
</html>

本文章原先以中文撰寫並發佈於 aliyun.com，亦設英文版本，僅作資訊用途。本網站不對文章的準確性，完整性或可靠性或其任何翻譯作出任何明示或暗示的陳述或保證。如對該文章有任何疑慮或投訴，請傳送電郵至 info-contact@alibabacloud.com 並提供相關疑慮或投訴的詳細說明。職員會於 5 個工作天內與您聯絡，一經驗證之後，即會刪除該侵權內容。

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Asp.net 檔案上傳的執行個體

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