在ASP.NET MVC中下载动态生成的文件 [英] Download Dynamically Generated File in ASP.NET MVC
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问题描述
我需要在ASP.NET MVC中实现文件下载.在网上搜索,我发现了这样的代码:
I need to implement a file download in ASP.NET MVC. Searching the Web, I found code like this:
public ActionResult GetFile()
{
return File(filename, "text/csv", Server.UrlEncode(filename));
}
很好,但是我想动态创建该文件的内容.
That's nice, but I want to create the contents of this file dynamically.
我意识到我可以动态创建文件,然后使用上面的语法下载该文件.但是,如果我可以直接将我的内容直接写到响应中,这会不会更有效率?在MVC中有可能吗?
I realize I could dynamically create the file, and then use the syntax above to download that file. But wouldn't it be more efficient if I could simply write my contents directly to the response? Is this possible in MVC?
推荐答案
这是我最终使用的代码的过于简化的版本.满足我的需求.
Here's an overly simplified version of the code I ended up using. It meets my needs.
[HttpGet]
public ActionResult GetFile()
{
Response.Clear();
Response.AddHeader("Content-Disposition", "attachment; filename=myfile.csv");
Response.ContentType = "text/csv";
// Write all my data
Response.Write(...);
Response.End();
// Not sure what else to do here
return Content(String.Empty);
}
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