发送请求，让服务器的某个文件下载

Js：发送异步请求：

window.location.href = "/Log/DownloadExcel?Excel=" + data;

Controller:

public ActionResult DownloadExcel()    {      string excel = Request.QueryString["Excel"] ?? "";      //if (excel == "")      //{      //  return;      //}      string path = System.Web.HttpContext.Current.Server.MapPath("~/Excel");      string filepath = string.Format("{0}\\{1}", path, excel);      string name = Path.GetFileName(filepath);      return File(filepath, "application/x-zip-compressed", name);    }

原标题：发送请求，让服务器的某个文件下载

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