我在服务器上制作了CSV文件-如何让客户端下载此文件? [英] I made csv file on the server - how can I let the client download this file?

问题描述

我已经在服务器上制作了csv，如下所示:

I have made csv on the server like this:

string Expath = @"d:\A.csv";
protected void Button3_Click(object sender, EventArgs e)
{
    FileStream FS = null;
    StreamWriter SW = null;
    try
    {
        FS = new FileStream(Expath, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
        SW = new StreamWriter(FS, Encoding.Default);
        SW.WriteLine("Test");
        SW.WriteLine("1,2,3,4,5");
    }
    catch { }
    finally
    {
        if (SW != null)
        {
            SW.Close();
            FS.Close();
        }
    }
}

将此文件放在服务器上的 d:上是否正确?如果不在哪里，最好在下摆放下摆?

is it correct to make this file on d: on the server? if not where is better to place hem?

客户端制作文件后如何下载文件?(asp.net C#)

how do to that the client can download this file after he made it? (asp.net C#)

推荐答案

您可以使用此代码将文件推送到浏览器.

You could use this code to push the file to browser.

     private void PushToBrowser(string FilePath, byte[] Data)
    {
        HttpContext.Current.Response.Clear();
        HttpContext.Current.Response.BufferOutput = true;
        HttpContext.Current.Response.ClearContent();
        HttpContext.Current.Response.ClearHeaders();
        HttpContext.Current.Response.ContentType = @"application/csv";
        HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + Path.GetFileName(FilePath));
        HttpContext.Current.Response.OutputStream.Write(Data, 0, Data.Length);
        HttpContext.Current.Response.Flush();
        HttpContext.Current.Response.Close();

        File.Delete(FilePath);
    }

您可以使用以下代码将文本数据转换为字节数组

You could use the following code to convert you text data to byte array

byte[] Data = File.ReadAllBytes(FilePath)

我不建议将生成的文件保留在Web目录之外，即使可以通过

I won't recommended keeping generated files outside the web directory, even though its possible to write to a directory outside the web root in ASP.NET through impersonation, but its not at all recommended on production enviornment.

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