相关疑难解决方法(0)

在asp.net 5中创建了wep api.我想回复Post请求的文件响应.但不是文件,响应看起来像`

{
  "version": {
    "major": 1,
    "minor": 1,
    "build": -1,
    "revision": -1,
    "majorRevision": -1,
    "minorRevision": -1
  },
  "content": {
    "headers": [
      {
        "key": "Content-Disposition",
        "value": [
          "attachment; filename=test.pdf"
        ]
      },
      {
        "key": "Content-Type",
        "value": [
          "application/pdf"
        ]
      }
    ]
  },
  "statusCode": 200,
  "reasonPhrase": "OK",
  "headers": [],
  "requestMessage": null,
  "isSuccessStatusCode": true
}`

码:

    public HttpResponseMessage Post([FromBody]DocumentViewModel vm)
    {
        try
        {
            if (ModelState.IsValid)
            {

                var Document = _repository.GetDocumentByGuid(vm.DocumentGuid, User.Identity.Name);
                var Params = Helper.ClientInputToRealValues(vm.Parameters, Document.DataFields);
                var file = Helper.GeneratePdf(Helper.InsertValues(Params, Document.Content));                 

                var …

我试图从dotnet核心web api操作下载一个zip文件,但我无法使其工作.我尝试通过POSTMAN和我的Aurelia Http Fetch Client调用该操作.

我能够像我想要的那样创建ZipFile并将其存储在系统上,但无法修复它,因此它通过api返回zip文件.

用例:用户选择几个图片集并单击下载按钮.图片集的ID被发送到api并创建一个zipfile,其中包含用于保存图片的每个图片集的目录.该zipfile返回给用户,以便他/她可以将其存储在他们的系统上.

任何帮助,将不胜感激.

我的控制器动作

      /// <summary>
      /// Downloads a collection of picture collections and their pictures
      /// </summary>
      /// <param name="ids">The ids of the collections to download</param>
      /// <returns></returns>
      [HttpPost("download")]
      [ProducesResponseType(typeof(void), (int) HttpStatusCode.OK)]
      public async Task<IActionResult> Download([FromBody] IEnumerable<int> ids)
      {
           // Create new zipfile
           var zipFile = $"{_ApiSettings.Pictures.AbsolutePath}/collections_download_{Guid.NewGuid().ToString("N").Substring(0,5)}.zip";

           using (var repo = new PictureCollectionsRepository())
           using (var picturesRepo = new PicturesRepository())
           using (var archive = ZipFile.Open(zipFile, ZipArchiveMode.Create))
           {
                foreach (var id in ids)
                {
                     // Fetch …