Question

我在Windows 8.1商店应用程序上使用Windows.Web.Http测试（将在Windows Phone 8.1上执行此问题）。

这就是我所做的：

HttpMultipartFormDataContent formData = new HttpMultipartFormDataContent();
IStorageFolder aFolder = await StorageFolder.GetFolderFromPathAsync(imageFolder);
IStorageFile aFile = await aFolder.GetFileAsync("myImage.jpg");
IInputStream aStream = await aFile.OpenAsync(FileAccessMode.Read);

formData.Add(new HttpStreamContent(aStream), "UploadFile", aFile.Name); // This is the problem. Remove this and HttpStreamContent captured well.
formData.Add(new HttpStringContent("some text"), "somename");
formData.Add(new HttpStringContent("another text"), "anothername");

HttpClient aClient = new HttpClient();
aClient.DefaultRequestHeaders.UserAgent.Clear();
aclient.DefaultRequestHeaders.UserAgent.ParseAdd("Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36");
aClient.DefaultRequestHeaders.Accept.ParseAdd("text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
aClient.DefaultRequestHeaders.AcceptLanguage.ParseAdd("en-US,en;q=0.8,ms;q=0.6,id;q=0.4");
aClient.DefaultRequestHeaders.AcceptEncoding.ParseAdd("gzip, deflate, sdch");

HttpResponseMessage aResponse = new HttpResponseMessage();
aResponse = await aClient.PostAsync(aURI, formData);
aResponse.EnsureSuccessStatusCode();
aResponseHTML = await aResponse.Content.ReadAsStringAsync();

主机回复错误500内部服务器错误。如果我删除文件上传，没有错误。使用主机的PHP脚本记录的数据很好。我相信主机的PHP脚本部分工作正常，相同的脚本适用于HTML webform和使用MS Visual Foxpro开发的另一个应用程序。

并尝试发送文件，

IStorageFolder aFolder = await StorageFolder.GetFolderFromPathAsync(imageFolder);
IStorageFile aFile = await aFolder.GetFileAsync("myImage.jpg");
IInputStream aStream = await aFile.OpenAsync(FileAccessMode.Read);

IHttpContent aContent = new HttpStreamContent(aStream);
aContent.Headers.ContentType = new HttpMediaTypeHeaderValue("image/png");
aContent.Headers.ContentDisposition = new HttpContentDispositionHeaderValue("form-data")
{
    Name = "UploadFile",
    FileName = string.Format("\"{0}\"", aFile.Name) // found in a blog post that the name should be in quotes, else again error 500
};
HttpRequestMessage aRequest = new HttpRequestMessage(HttpMethod.Post, aURI);
aRequest.Content = aContent;

HttpClient aClient = new HttpClient();
aClient.DefaultRequestHeaders.UserAgent.Clear();
aclient.DefaultRequestHeaders.UserAgent.ParseAdd("Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36");
aClient.DefaultRequestHeaders.Accept.ParseAdd("text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8");
aClient.DefaultRequestHeaders.AcceptLanguage.ParseAdd("en-US,en;q=0.8,ms;q=0.6,id;q=0.4");
aClient.DefaultRequestHeaders.AcceptEncoding.ParseAdd("gzip, deflate, sdch");
aResponse = await aClient.SendRequestAsync(request);

这一次，好了。在主机上失败。 PHP $ FILES数组不包含任何内容。用于检测上传文件的PHP脚本：

if (isset($_FILES["UploadFile"]["name"])) { ....

Answer 1

的multipart / form-data的

在您第一次请求时，您发送的Content-Type: multipart/form-data请求由包含标题和正文的较小部分组成。见here for more information。这应该适用于$_FILES。

您可以使用以下PHP脚本来验证收到的数据：

<?php
    print_r($_FILES);
?>

我使用的是PHP 5.6.9，它运行正常。

image / png或任何其他单个文件POST

在您的第二个请求中，您发送的是Content-Type: image/png，您的文件是整个请求正文，$_FILES在这种情况下无效，您需要阅读所有请求：< / p>

<?php
    $myFile = @file_get_contents('php://input');
?>

HttpClient帖子返回500内部服务器错误

1 个答案:

的multipart / form-data的

image / png或任何其他单个文件POST