如何在內存中製作文本文件並在其上寫入內容並在客戶端打開記事本並打開該文件？

Question

如何在內存中製作文本文件（Ram - >保存NoWhere）並在其上寫上一些內容並在客戶端瀏覽器上打開記事本並打開該文本文件並讓用戶通過他/她自己保存該文件？ - >在

感謝在未來提前

問候

Answer 1

你不能這樣做，後面的代碼。
您只需將文件內容寫入Response，並在頭中輸入正確的MIME類型（例如「text/plain」），客戶端瀏覽器將使用配置的查看器爲提供的MIME類型打開文本數據。

<%@ Page language="vb" runat="server" explicit="true" strict="true" %> 
2 <script language="vb" runat="server"> 
3 Sub Page_Load(Sender As Object, E As EventArgs) 
4  Dim strRequest As String = Request.QueryString("file") '-- if something was passed to the file querystring 
5  If strRequest <> "" Then 'get absolute path of the file 
6   Dim path As String = Server.MapPath(strRequest) 'get file object as FileInfo 
7   Dim file As System.IO.FileInfo = New System.IO.FileInfo(path) '-- if the file exists on the server 
8   If file.Exists Then 'set appropriate headers 
9    Response.Clear() 
10    Response.AddHeader("Content-Disposition", "attachment; filename=" & file.Name) ' comment this line if needed 
11    Response.AddHeader("Content-Length", file.Length.ToString()) 
12    Response.ContentType = "application/octet-stream" 'this is MIME type 
13    Response.WriteFile(file.FullName) 
14    Response.End 'if file does not exist 
15   Else 
16    Response.Write("This file does not exist.") 
17   End If 'nothing in the URL as HTTP GET 
18  Else 
19   Response.Write("Please provide a file to download.") 
20  End If 
21 End Sub 
22 </script> 

http://www.xefteri.com/articles/show.cfm?id=8

在這裏被稍微修改C＃示例代碼

<%@ Page Title="Home Page" Language="C#" AutoEventWireup="true"%> 
<script language="cs" runat="server"> 
    public void Page_Load(object sender, EventArgs e) 
    { 

     byte[] buffer; 
     using (var memoryStream = new System.IO.MemoryStream()) 
     { 
      buffer = Encoding.Default.GetBytes("Hello StackOverflow"); //Dummy data 
      memoryStream.Write(buffer, 0, buffer.Length); 
      Response.Clear(); 
      Response.AddHeader("Content-Disposition", "attachment; filename=hello.txt"); //This wil force browser to silently download file. you can comment this line to see difference 
      Response.AddHeader("Content-Length", memoryStream.Length.ToString()); 
      Response.ContentType = "text/plain"; //This is MIME type 
      memoryStream.WriteTo(Response.OutputStream); 
     } 
     Response.End(); 

    } 
</script>