wp7 怎么上传文件？

[June1991]

wp7 怎么上传文件？

[gnimgnot]

WebClient.UploadFile

[June1991]

WebClient 好像不行吧！

[June1991]

{System.UnauthorizedAccessException: Invalid cross-thread access at MS.Internal.XcpImports.CheckThread()
at MS.Internal.XcpImports.MessageBox_ShowCore(String messageBoxText, String caption, UInt32 type)
at System.Windows.MessageBox.ShowCore(String messageBoxText, String caption, MessageBoxButton button)
at System.Windows.MessageBox.Show(String messageBoxText)
at gzip.MainPage.ResponseCallback(IAsyncResult result)
at System.Net.Browser.ClientHttpWebRequest.<>c__DisplayClassa.<InvokeGetResponseCallback>b__8(Object state2)
at System.Threading.ThreadPool.WorkItem.WaitCallback_Context(Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ThreadPool.WorkItem.doWork(Object o)
at System.Threading.Timer.ring()
}

[beyondma]

楼上这个错是哪句报的？一般很少有在智能手机上上传文件的例子。为什么这样做？

[June1991]

private byte[] bSendingFile = null;

 private void Update()
        {
            using (IsolatedStorageFile isf = IsolatedStorageFile.GetUserStoreForApplication())
            {
                using (IsolatedStorageFileStream sendingZipStream = new IsolatedStorageFileStream(Used.strZipPath, FileMode.Open, isf))
                {
                    try
                    {
                        // 要上传的文件 
                        bSendingFile = new byte[sendingZipStream.Length];
                        sendingZipStream.Read(bSendingFile, 0, bSendingFile.Length);
                        // 根据uri创建HttpWebRequest对象 
                        HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(Used.strUpdateUrl, UriKind.Absolute));
                        httpReq.Method = "POST";
                        httpReq.ContentType = "multipart/form-data;";
                        IAsyncResult asyncResult = httpReq.BeginGetRequestStream(new AsyncCallback(RequestStreamCallback), httpReq);
                    }
                    catch (Exception ex)
                    {
                        String strError = ex.ToString();
                    }
                }
            }
        }
        /// <summary>
        /// 返回用于将数据写入Stream，写入数据，并发送
        /// </summary>
        /// <param name="result"></param>
        private void RequestStreamCallback(IAsyncResult result)
        {
            HttpWebRequest request = result.AsyncState as HttpWebRequest;
            // 返回用于将数据写入某 URI 资源的 Stream
            Stream requestStream = request.EndGetRequestStream(result);
            requestStream.Write(bSendingFile, 0, bSendingFile.Length);
            requestStream.Flush();
            requestStream.Close();
            request.BeginGetResponse(new AsyncCallback(ResponseCallback), request);
        }
        /// <summary>
        /// 获取最终的返回结果
        /// </summary>
        /// <param name="result"></param>
        private void ResponseCallback(IAsyncResult result)
        {
            try
            {
                HttpWebRequest request = result.AsyncState as HttpWebRequest;
                WebResponse response = request.EndGetResponse(result) as HttpWebResponse;
                if (response != null)
                {
                    Stream responseStream = response.GetResponseStream();
                    using (StreamReader streamReader = new StreamReader(responseStream))
                    {
                        String strResponese = streamReader.ReadToEnd();//返回内容
                        MessageBox.Show(strResponese);
                    }
                }
            }
            catch (Exception ex)
            {
                String strError = ex.ToString();
            }
        }

这样写可以么？

[pirates_fish]

[June1991]

 try
            {
                HttpWebRequest request = result.AsyncState as HttpWebRequest;
                WebResponse response = request.EndGetResponse(result) as HttpWebResponse;
                if (response != null)
                {
                    Stream responseStream = response.GetResponseStream();
                    using (StreamReader streamReader = new StreamReader(responseStream))
                    {
                        String strResponese = streamReader.ReadToEnd();//返回内容
                        MessageBox.Show(strResponese);
                    }
                }
            }
            catch (Exception ex)
            {
                String strError = ex.ToString();
            }

在这个是strError strResponese返回了 \r\n

[June1991]

上传的是压缩文件到服务器，然后服务器解压缩。

[keeya0416]

楼主搜下 multipart 就行了
代码太多 我就懒得贴了

[zaiguo]

MessageBox.Show(strResponese);
出问题了吧！ui不是一个线程的！去掉试试？

[zaiguo]

或者试试
Deployment.Current.Dispatcher.BeginInvoke(()=>MessageBox.Show(strResponese));

[June1991]

嗯，是MessageBox的问题，但为什么服务器收不到压缩包呢？