上传图像和数据的多部分内容 - 的Windows Phone 8 [英] Uploading image and data as multi part content - windows phone 8

问题描述

我无法上传图片和数据，以Web服务为多部分content.Here是我的code

I am unable to upload image and data to web service as multipart content.Here is my code

 var fileUploadUrl = @"http://myurl";
                    var client = new HttpClient();
                    client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "multipart/form-data");
                    photoStream.Position = 0;

                    // This is the postdata
                    MultipartFormDataContent content = new MultipartFormDataContent();
                    content.Add(new StreamContent(photoStream), "attendeedImage");
                    content.Add(new StringContent("12", Encoding.UTF8), "userId");
                    content.Add(new StringContent("78", Encoding.UTF8), "noOfAttendees");
                    content.Add(new StringContent("chennai", Encoding.UTF8), "locationName");
                    content.Add(new StringContent("32.56", Encoding.UTF8), "longitude");
                    content.Add(new StringContent("32.56", Encoding.UTF8), "latitude");

                    Console.Write(content);
                    // upload the file sending the form info and ensure a result.
                    // it will throw an exception if the service doesn't return a valid successful status code
                    await client.PostAsync(fileUploadUrl, content)
                        .ContinueWith((postTask) =>
                        {
                            postTask.Result.EnsureSuccessStatusCode();
                        });

我得到的回应是400-错误请求

The response I get is 400- Bad request

时，可将这两种图像和数据一起发送这样吗？ 如果是，什么是正确的方式去？

Is is possible to send both image and data together like this? If yes, what is the proper way to go about?

推荐答案

我现在还不能测试这一权利，但问题可能是你的数据项之间缺少边界。要指定一个，initializting你的 MultipartFormDataContent 如下：

I can't test this right now, but the problem could be a missing boundary between your data items. To specify one, initializting your MultipartFormDataContent as follows:

string boundary = "---###---"; // should never occur in your data
MultipartFormDataContent content = new MultipartFormDataContent(boundary);

更多关于边界：什么是多部分的边界/形式 - 数据？

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