如何使用nervgh的Angular-File-Upload发送formData

Question

我在https://github.com/nervgh/angular-file-upload上使用nervgh的Angular-File-Upload

当我硬编码时,它就像一个魅力preOpKey.我想要做的是发送preOpKey文件以便我可以将文件保存到数据库中的相应记录.

angular-file-upload fileData在我填充的API中有一个,$scope.OnPreinspectionSubmit()但由于某种原因,我无法SaveFile()在我的MVC控制器中找到该值.

我只需要知道如何传递一个值和我的文件,然后在我的MVC控制器中访问它.我想发送它会很方便,fileData但不需要回答我的问题.

这是我的Angular控制器:

var OperatorPreinspectionControllers = angular.module('OperatorPreinspectionControllers', ['angularFileUpload']);

OperatorPreinspectionControllers.controller('OperatorPreinspectionCtrl', ['$scope', '$http', 'FileUploader',
    function ($scope, $http, FileUploader) {

        $scope.uploader = new FileUploader({
            url: pageBaseUrl + 'image/SaveFile'
        });

        $scope.uploader.filters.push({
            name: 'imageFilter',
            fn: function (item /*{File|FileLikeObject}*/, options) {
                var type = '|' + item.type.slice(item.type.lastIndexOf('/') + 1) + '|';
                return '|jpg|png|jpeg|bmp|gif|pdf|'.indexOf(type) !== -1;
            }
        });

        // Send the form data to the database
        $scope.OnPreinspectionSubmit = function () {
            if (confirm("Are you sure you want to save this information?")) {
                $http.post(pageBaseUrl + 'api/PreInspectionForm', $scope.formInformation).success(function (returnData) {
                    $scope.uploader.formData.push({ preOpKey: returnData });
                    $scope.uploader.uploadAll(); // Upload file
                });
            } else { }
        }
    }
]);

这是我的MVC控制器:

public void SaveFile()
    {
        HttpFileCollectionBase files = Request.Files;
        HttpPostedFileBase uploadedFile = files[0];

        var preOpKey = 123; // ???????

        // Turn the file into bytes
        byte[] data;
        using(Stream inputStream = uploadedFile.InputStream)
        {
            MemoryStream memoryStream = inputStream as MemoryStream;
            if(memoryStream == null)
            {
                memoryStream = new MemoryStream();
                inputStream.CopyTo(memoryStream);
            }
            data = memoryStream.ToArray();
        }

        PreOpManager.SaveImage(preOpKey, data, uploadedFile.FileName, uploadedFile.ContentType);
    }

谢谢,

亚伦

Answer 1

到目前为止,对我来说完美无缺的解决方案是:

$scope.uploader.onBeforeUploadItem = onBeforeUploadItem;

function onBeforeUploadItem(item) {
  item.formData.push({your: 'data'});
  console.log(item);
}

根据https://github.com/nervgh/angular-file-upload/issues/97#issuecomment-39248062