问题描述
[HttpPost]
public FileResult DownloadFile(int id)
{
using (MemoryStream ms = new MemoryStream())
{
var sw = new StreamWriter(ms);
sw.Write("Hi");
ms.Position = 0;
return File(ms,"text/plain","file.txt");
}
}
尝试代码- var sw = new StreamWriter(ms,Encoding.UTF8,1024,true)
返回文件(stream.ToArray(),"file.txt");
似乎没有任何效果。任何帮助,将不胜感激。谢谢。
解决方法
你可以试试这个代码:
public FileResult DownloadFile(int id)
{
using (MemoryStream ms = new MemoryStream())
{
var sw = new StreamWriter(ms);
sw.Write("Hi");
ms.Position = 0;
sw.Flush();
sw.Close();
return File(ms.GetBuffer(),"text/plain","file.txt");
}
}