windows-phone-7 – WP7 – 带图像的POST表单

我需要将 Windows Phone 7中的图像发送到某些电子邮件地址.
我使用这个类将文本值提交给 PHP脚本,解析数据并将格式化的电子邮件发送到地址.
问题是我无法弄清楚如何将图像发送到该脚本,将图像附加到电子邮件.可以以任何方式更改PHP脚本.如果我有一个Image对象,如何更改此类以允许发送图像？

public class PostSubmitter
{
    public string url { get; set; }
    public Dictionary<string,string> parameters { get; set; }

    public PostSubmitter() { }

    public void Submit()
    {
        // Prepare web request...
        HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);
        myRequest.Method = "POST";
        myRequest.ContentType = "application/x-www-form-urlencoded";

        myRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback),myRequest);
    }

    private void GetRequestStreamCallback(IAsyncResult asynchronousResult)
    {
        HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
        System.IO.Stream postStream = request.EndGetRequestStream(asynchronousResult);

        // Prepare Parameters String
        string parameteRSString = "";
        foreach (KeyValuePair<string,string> parameter in parameters)
        {
            parameteRSString = parameteRSString + (parameteRSString != "" ? "&" : "") + string.Format("{0}={1}",parameter.Key,parameter.Value);
        }

        byte[] byteArray = System.Text.Encoding.UTF8.GetBytes(parameteRSString);
        // Write to the request stream.
        postStream.Write(byteArray,parameteRSString.Length);
        postStream.Close();
        // Start the asynchronous operation to get the response
        request.BeginGetResponse(new AsyncCallback(GetResponseCallback),request);
    }

    private void GetResponseCallback(IAsyncResult asynchronousResult)
    {
        HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
        HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
        Stream streamResponse = response.GetResponseStream();
        StreamReader streamRead = new StreamReader(streamResponse);
        string responseString = streamRead.ReadToEnd();
        // Close the stream object
        streamResponse.Close();
        streamRead.Close();
        // Release the HttpWebResponse
        response.Close();
        //Action<string> act = new Action<string>(DisplayResponse);
        //this.Dispatcher.BeginInvoke(act,responseString);
    }

我用这种方式使用这个类：

Dictionary<string,string> data = new Dictionary<string,string>()
{
        {"nom",nom.Text},{"cognoms",cognoms.Text},{"email",email.Text},{"telefon",telefon.Text}
};

PostSubmitter post = new PostSubmitter() { url = "http://example.com/parserscript.PHP",parameters = data };
post.Submit();

非常感谢你！

我已将上面的代码转换为以下代码,我相信它会有所帮助：

public class PostSubmitter
{
    public string url { get; set; }
    public Dictionary<string,object> parameters { get; set; }
    string boundary = "----------" + DateTime.Now.Ticks.ToString();

    public PostSubmitter() { }

    public void Submit()
    {
        // Prepare web request...
        HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(new Uri(url));
        myRequest.Method = "POST";
        myRequest.ContentType = string.Format("multipart/form-data; boundary={0}",boundary);

        myRequest.BeginGetRequestStream(new AsyncCallback(GetRequestStreamCallback),myRequest);
    }

    private void GetRequestStreamCallback(IAsyncResult asynchronousResult)
    {
        HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
        Stream postStream = request.EndGetRequestStream(asynchronousResult);

        writeMultipartObject(postStream,parameters);
        postStream.Close();

        request.BeginGetResponse(new AsyncCallback(GetResponseCallback),request);
    }

    private void GetResponseCallback(IAsyncResult asynchronousResult)
    {
        HttpWebRequest request = (HttpWebRequest)asynchronousResult.AsyncState;
        HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(asynchronousResult);
        Stream streamResponse = response.GetResponseStream();
        StreamReader streamRead = new StreamReader(streamResponse);
        streamResponse.Close();
        streamRead.Close();
        // Release the HttpWebResponse
        response.Close();
    }


    public void writeMultipartObject(Stream stream,object data)
    {
        StreamWriter writer = new StreamWriter(stream);
        if (data != null)
        {
            foreach (var entry in data as Dictionary<string,object>)
            {
                WriteEntry(writer,entry.Key,entry.Value);
            }
        }
        writer.Write("--");
        writer.Write(boundary);
        writer.WriteLine("--");
        writer.Flush();
    }

    private void WriteEntry(StreamWriter writer,string key,object value)
    {
        if (value != null)
        {
            writer.Write("--");
            writer.WriteLine(boundary);
            if (value is byte[])
            {
                byte[] ba = value as byte[];

                writer.WriteLine(@"Content-Disposition: form-data; name=""{0}""; filename=""{1}""",key,"sentPhoto.jpg");
                writer.WriteLine(@"Content-Type: application/octet-stream");
                //writer.WriteLine(@"Content-Type: image / jpeg");
                writer.WriteLine(@"Content-Length: " + ba.Length);
                writer.WriteLine();
                writer.Flush();
                Stream output = writer.BaseStream;

                output.Write(ba,ba.Length);
                output.Flush();
                writer.WriteLine();
            }
            else
            {
                writer.WriteLine(@"Content-Disposition: form-data; name=""{0}""",key);
                writer.WriteLine();
                writer.WriteLine(value.ToString());
            }
        }
    }
}

要将图像从相机转换为字节数组,我已经使用了以下内容：

private void photochooserTask_Completed(object sender,PhotoResult e)
        {
            try
            {
                BitmapImage image = new BitmapImage();
                image.SetSource(e.ChosenPhoto);
                foto.Source = image;

                using (MemoryStream ms = new MemoryStream())
                {
                    WriteableBitmap btmMap = new WriteableBitmap(image);

                    // write an image into the stream
                    Extensions.SaveJpeg(btmMap,ms,image.PixelWidth,image.PixelHeight,100);

                    byteArray = ms.ToArray();
                }
            }
            catch (ArgumentNullException) { /* Nothing */ }
        }

我这样使用这个类：

Dictionary<string,object> data = new Dictionary<string,object>()
        {
            {"nom",telefon.Text},{"comentari",comentari.Text},{"foto",byteArray},};
        PostSubmitter post = new PostSubmitter() { url = "http://example.com/parserscript.PHP",parameters = data};
        post.Submit();

我不知道这是将图像从手机发送到服务器的最佳方式,但是我找不到任何东西,所以我自己上课只是读这个,而且这花了我好几天.如果有人想改进代码或写任何评论将受到欢迎.

原文链接：https://www.f2er.com/windows/364228.html

windows-phone-7 – WP7 – 带图像的POST表单

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