MVC3中如何实现文件下载？

Question

http://q.cnblogs.com/q/8061/

Answer 1

这个太复杂了点，有没有更简单的？直接给我后台控制器和前台View的代码就好

Answer 2

你在webform中怎么做的,MVC里也一样

Answer 3

 public void XiaZai(object sender, EventArgs e)
        {
            string fileName = "QQ五笔.exe";//客户端保存的文件名 
            string filePath = Server.MapPath("../../DownLoad/QQWubi_Setup.exe");//路径             FileStream fs = new FileStream(filePath, FileMode.Open);
            byte[] bytes = new byte[(int)fs.Length];
            fs.Read(bytes, 0, bytes.Length);
            fs.Close();
            Response.Charset = "UTF-8";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
            Response.ContentType = "application/octet-stream";
            
            Response.AddHeader("Content-Disposition", "attachment; filename="+ fileName);
            Response.BinaryWrite(bytes);
            Response.Flush();
            Response.End();
        }这是我在控制器里的Action，可以读到那个文件，但就是不弹出下载框，运行完就没反应了。我哪里写错了？

Answer 4

public ActionResult File(){
string fileName = "QQ五笔.exe";//客户端保存的文件名  
  string filePath = Server.MapPath("../../DownLoad/QQWubi_Setup.exe");//路径    FileStream fs = new FileStream(filePath, FileMode.Open);
  byte[] bytes = new byte[(int)fs.Length];
  fs.Read(bytes, 0, bytes.Length);
  fs.Close();
  Response.Charset = "UTF-8";
  Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
  Response.ContentType = "application/octet-stream";
    
  Response.AddHeader("Content-Disposition", "attachment; filename="+ fileName);
  Response.BinaryWrite(bytes);
  Response.Flush();
  Response.End();
return new EmptyResult();
}

Answer 5

为啥我用了以后没有效果呢
var newPath = this.Server.MapPath(filePath);
            FileStream fs = new FileStream(newPath, FileMode.Open);
            byte[] bytes = new byte[(int)fs.Length];
            fs.Read(bytes, 0, bytes.Length);
            fs.Close();
            Response.Charset = "UTF-8";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
            Response.ContentType = "application/octet-stream";            Response.AddHeader("Content-Disposition", "attachment; filename=" + fileName);
            Response.BinaryWrite(bytes);
            Response.Flush();
            Response.End();
            return new EmptyResult();

Answer 6

public ActionResult DownLoad()
        {
            //插件名称
            string fileName = "虎视视频控件_Setup(v2.6.0.0).exe";
            //文件路径
            string filePath = Server.MapPath("../Video/虎视视频控件_Setup(v2.6.0.0).exe");
            FileStream fs = new FileStream(filePath,FileMode.Open);
            byte[] bytes = new byte[(int)fs.Length];
            fs.Read(bytes, 0, bytes.Length);
            fs.Close();
            Response.Charset = "UTF-8";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("UTF-8");
            Response.ContentType = "application/octet-stream";
//解决文件名乱码问题            
Response.AddHeader("Content-Disposition","attachment;filename="+Server.UrlEncode(fileName));
            Response.BinaryWrite(bytes);
            Response.Flush();
            Response.End();
            return new EmptyResult();
        }

Answer 7

搞的这么麻烦，MVC很简单的啊。
[HttpGet]
public FilePathResult GetFile(){
  return File();
}