使用角度js将FormData文件与模型数据一起发布

时间:2015-05-23 16:54:38

标签: javascript asp.net-mvc angularjs file-upload

我使用输入类型文件和其他用户数据上传图像。我的模型由User类组成:

public class User
{
    public int Id { get; set; }
    public string Name { get; set; }
    public int Rollno { get; set; }
    public byte[] ProfileImage { get; set; }
    public HttpPostedFile image { get; set; }
}

和asp.net mvc中的发布方法:

public ActionResult AddUser(User user)
{
    var files = Request.Files;
    foreach (string fileName in Request.Files)
    {
        HttpPostedFileBase file = Request.Files[fileName];
        byte[] uploadFile = new byte[file.InputStream.Length];

    }
    return View();
}

我有一个像这样的输入标签:

<input id="imgInp" type="file" aria-label="Add photos to your post" class="upload" name="file" onchange="angular.element(this).scope().LoadFileData(this.files)" multiple="" accept="image/*">

和这样的angularJS控制器:

angular.module('app', ['AngularDemo.BeerController']).
  controller('formController',['$scope','$http', function ($scope,$http) {
    alert('in controller');
    var formData = new FormData();

    $scope.LoadFileData = function (files) {
        for (var file in files) {
            formData.append("file", files[file]);
        }
    };

    $scope.submit = function () {

        alert('in submit');
        $http.post("/Home/AddUser", formData, {
            withCredentials: true,
            headers: { 'Content-Type': undefined },
            transformRequest: angular.identity
        }).success(function (response) {

        });
    }
}]);

我的图片文件在AddUser方法中发回,但如何发送模型数据?我在表单中添加了ng-model="Name"等。由于我的$scope.Name将表单数据作为传递数据,如何向$http.post等发送该图像数据?

1 个答案:

答案 0 :(得分:0)

如果将User作为JSON字符串传递,则可以使此工作正常。但是,这不会绑定[HttpPost] public ActionResult AddUser(string user, HttpPostedFileBase[] files) { // parse user into User } 类的图像属性。

<input id="imgInp" type="file" aria-label="Add photos to your post" class="upload" name="file"
       onchange="angular.element(this).scope().LoadFileData(this.files)" multiple="" accept="image/*">
<input name="Id" type="text" ng-model="user.Id" />
<input name="Name" type="text" ng-model="user.Name" />

表单字段

.controller('formController',['$scope','$http', function ($scope, $http) {
    $scope.user = {
        Id: 0,
        Name: ""
    };
    $scope.files = [];

    $scope.LoadFileData = function(files) {
        $scope.files = files;
    };

    $scope.submit = function() {
        $http({
            url: "/Home/AddUser",
            method: "POST",
            headers: { "Content-Type": undefined },
            transformRequest: function(data) {
                var formData = new FormData();
                formData.append("user", angular.toJson(data.user));
                for (var i = 0; i < data.files.length; i++) {
                    formData.append("files[" + i + "]", data.files[i]);
                }
            },
            data: { user: $scope.user, files: $scope.files }
        })
        .success(function(response) {   });
    };
});

和角度控制器

User

如果您不想将JSON解析为public ActionResult AddUser(string userName, int userId, HttpPostedFileBase[] files) { ... } ,那么您必须编写自定义活页夹。如果没有很多用户字段,您可以将它们作为离散参数传递。

{{1}}