服务器文档下载zip格式

刚好这次项目中遇到了这个东西，就来弄一下，挺简单的，但是前台调用的时候弄错了，浪费了大半天的时间，本人也是菜鸟一枚。开始吧。（MVC的）

@using Rattan.Core.Utility;
@{
 string ButtonScript = string.Empty;
}
@if (Rattan.Basic.Globals.GetIsAuth(ViewBag.AuthValues, "QuickExport"))
{
 ButtonScript = @"
   {
       position: 0,
       id: 'btnQuickExport',
       text: '导出稿件附件',
       disabled: false,
       icon: 'pwd.gif',
       handler: function ()
       {
        QuickExport();
       }
      }";
}
<script type="text/javascript" language="javascript">
  helper.onBeforePageLoad = function (params) {

}
  helper.onAfterPageLoad = function () {
    m_grid.insertToolBar(
    [
      @Html.Raw(ButtonScript)
    ]);
  }
</script>

<script type="text/javascript" language="javascript">
 function QuickExport() {                       
 // var rows = m_grid.getSelections();       ---这个是不打包，一个个跳出来的，没卵用，当时应付的
 // $.each(rows, function (i, row) {
 //  var url = row.filelist + "?" + Math.random();
 //  window.setTimeout(function () {
 //   window.open(url, "_blank");
 //  }, 1000);
 // });
  var rows = m_grid.getSelections();
  var Draft_Id_Array = [];
  $.each(rows, function (i, row) {
   Draft_Id_Array.push(row.Draft_Id);
  });
  if (!Draft_Id_Array.length) {
   alert("至少选中一行！");
   return;
  }
  var url = "/BasicInfo/Meeting_Draft/ZipFileByCode";
  var postParams = {
   Draft_Ids: Draft_Id_Array.join(',')
  };
  window.open(url + '?Draft_Ids=' + Draft_Id_Array.join(','))
 }

</script>

/// <summary>
  /// 压缩打包文件
  /// </summary>
  public ActionResult ZipFileByCode(string Draft_Ids)//string Draft_Id
  {
   MemoryStream ms = new MemoryStream();
   byte[] buffer = null;

using (ZipFile file = ZipFile.Create(ms))  //压缩包创建到内存
   {
    file.BeginUpdate();
    file.NameTransform = new IndexController();//通过这个名称格式化器，可以将里面的文件名进行一些处理。默认情况下，会自动根据文件的路径在zip中创建有关的文件夹。

string where = "Draft_Id in (" + Draft_Ids + ")";
    var draftInfo = Meeting_DraftRepository.Instance.GetMany(where).ToList();
    foreach (var draftInfoList in draftInfo)
    {
     if (string.IsNullOrWhiteSpace(draftInfoList.filelist) || draftInfoList.filelist.IndexOf('/') < 0)
     {

continue;
     }
     var positonIndex = draftInfoList.filelist.LastIndexOf('/');
    string fileName = draftInfoList.filelist.Substring(positonIndex, draftInfoList.filelist.Length - positonIndex);//客户端保存的文件名
     file.Add(Server.MapPath(draftInfoList.filelist));
    }
    file.CommitUpdate();
    buffer = new byte[ms.Length];
    ms.Position = 0;
    ms.Read(buffer, 0, buffer.Length);

}

//将中文转换预防出现乱码
   string excelName = "稿件附件".ToString();

excelName = HttpUtility.UrlEncode(excelName, System.Text.Encoding.UTF8);

DateTime dt = DateTime.Now;
   Response.AddHeader("content-disposition", "attachment;filename=" + excelName + DateTime.Now.ToString("yyyyMMdd")+ ".zip");
   Response.BinaryWrite(buffer);
   Response.Flush();
   Response.End();
   return View();
  }
 }