1 using System.Web.Mvc;
 2 
 3 public FilePathResult DownloadFile(string path)
 4 {
 5 
 6      path = path.Replace("\\", "/");
 7      string type = string.Empty;
 8      int extIndex = path.LastIndexOf(".");
 9      if (extIndex > 0)
10      {
11         type = "application/" + path.Substring(extIndex + 1);
12      }
13 
14      string name = string.Empty;
15      int nameIndex = path.LastIndexOf("/");
16      if (nameIndex > 0)
17      {
18         name = path.Substring(nameIndex + 1);
19      }
20 
21      return File("~/" + path, "application/" + type, name);
22 }

1 //文件下载
2 function downloadFileJQuery(filePath) {
3     $.fileDownload('/DocManager/DownloadFile?path=' + filePath);
4 }