MVC CSV文件下载+项目真棒

Question

我目前正在使用项目很棒来弹出一个要求提供帐号的表单.

我取数字并生成一个csv文件并将其发送到浏览器:

string billcsv = "account_ref,line1,line2,line3"

var VIRFile = File(new System.Text.UTF8Encoding().GetBytes(billcsv), "text/csv", "billfor" + accnumber+ ".csv")

return Json(VIRFile);

我希望最终用户提示保存csv文件,但无法确定是谁.

我应该首先在磁盘上创建CSV文件,然后将url传递给文件到success函数并使用window.open(url),还是可以使用javascript从json结果重新创建文件？

Json结果:

{ "FileContents":[65,99,99,111,117,110,116,95,82,69,70,44,73,78,86,79,73,67,69,95,84,89,80,69,44,73, 78,86,79,73,67,69,95,82,69,70,44,81,84,89,95,79,82,68,69,82,44,83,69,82,86, 73,67,69,95,84,69,88,84,44,85,78,73,84,95,80,82,73,67,69,44,83,69,82,86,73, 67,69,95,65,77,79,85,78,84,13,10,114,114,114,44,73,110,118,111,105,99,101,44,86,73,82,49,48,50,44,49,44,83,116, 97,114,83,104,105,112,32,32,79,110,101,13,10,44,76,79,65,32,45,32,32,109,116,114,115,13,​​10,44,71,82,84,32,45,71,84, 44,48,44,48,44,48,13,10,114,114,114,44,73,110,118,111,105,99,101,44,86,73,82,49,48,50,44,50,44,66,111,97,116,32,84,114, 97,110,115,102,101,114,115,32,72,105,114,101,32,67,104,97,114,103,101,44,50,53,48,46,48,48,44,53,48,48,46,48,48,13,10,114,114,114,44,73,110,118,111,105,99,101, 44,86,73,82,49,48,50,44,51,44,66,101,114,116,104,105,110,103,32,32,82,70,65,32,47,32,77,111,68,44,51,53,48, 46,48,48,44,49,48,53,48,46,48,48,13,10] "的ContentType": "文本/ CSV", "FileDownloadName": "billfor123.csv"}

Answer 1

首先不要使用AJAX下载文件.使用普通表单提交或指向将为文件提供服务的控制器操作的锚点.然后在控制器中:

public ActionResult Download(string accnumber)
{
    string billcsv = "account_ref,line1,line2,line3";
    var data = Encoding.UTF8.GetBytes(billcsv);
    string filename = "billfor" + accnumber + ".csv";
    return File(data, "text/csv", filename);
}

现在,为了调用此操作并提示用户下载,只需创建一个链接:

@Html.ActionLink("Download csv", "Download", new { accnumber = "123" })

或者如果您使用的是表格:

@Html.BeginForm("Download", "SomeController")
{
    @Html.TextBox("accnumber")
    <input type="submit" value="Download CSV" />
}