ng-file-upload不发送文件

Question

我在使用API​​作为后端的AngularJS应用上使用ng-file-upload。

从邮递员那里发送我的参数作为表单数据，我的API正在获取文件，如下图所示：

从我看来，我使用以下代码：

<div class="panel-body">
    <form ng-submit="update()">
        <div class="form-group">
            <label class="col-sm-2 control-label">{{ 'name' | translate }}</label>
            <div class="col-sm-9"><input ng-model="account.name" class="form-control" placeholder="{{ 'entername' | translate }}">
            </div>
        </div>
        <br/><br/><br/>
        <div class="form-group">
            <label class="col-sm-2 control-label">{{ 'logo' | translate }}</label>
            <div class="col-sm-9">
                <div class="btn btn-default" ngf-select ng-model="file" name="file" ngf-pattern="'image/*'" ngf-accept="'imag e/*'" ngf-max-size="2MB">Select</div>
                <img ngf-thumbnail="file" class="img-responsive center-block" style="height:50px"/>
            </div>
        </div>
        <br/><br/><br/><br/>
        <div class="form-group text-center">
            <button class="btn btn-primary" ng-click="index()"><i class="fa fa-btn fa-close"></i> {{ 'cancel' | translate }} </button>
            <button class="btn btn-success" type="submit"><i class="fa fa-btn fa-save"></i> {{ 'save' | translate }}</button>
        </div>
    </form>
</div>

但是从我的angularjs应用程序来看，它不起作用！实际上，我正在关注github上的示例。我的angularjs代码是：

accountController.controller('accountEditController', function ($scope, Upload) {
$scope.update = function() {
    if ($scope.file)
        $scope.upload($scope.file);
};
$scope.upload = function (logo) {
    console.log(logo);
    Upload.upload({
        url: 'api/account/'+ $scope.id,
        method: 'PUT',
        file: logo,
        sendFieldsAs: 'form-data',
        fields: { name: $scope.name },
    }).then(function (resp) {
        console.log('Success uploaded. Response: ' + resp.data);
    }, function (resp) {
        console.log('Error status: ' + resp.status);
    }, function (evt) {
        var progressPercentage = parseInt(100.0 * evt.loaded / evt.total);
        console.log('progress: ' + progressPercentage + '% ');
    });
};

}）;

从我的控制台，我收到以下消息：