c# - 多个 POST 参数，一些包含 XML

Question

我希望能够让我的网络服务接受多个 POST 参数，其中一些是 XML。这可能吗？下面的代码将产生一个服务器错误:

WebResponse resp = (WebResponse)req.GetResponse();

string programId = "1";
        string statusMessages = statusMessagesXML.ToString(SaveOptions.DisableFormatting);<p></p>

<pre><code>    string postData = "programId=" + programId;
    postData += "&statusMessages=" + HttpUtility.UrlEncode(statusMessages);
    string data = postData;

    HttpWebRequest req = (HttpWebRequest)WebRequest.Create(uri);
    req.ContentType = "application/x-www-form-urlencoded";
    req.ContentLength = data.Length;
    req.Method = "POST";
    StreamWriter writer = new StreamWriter(req.GetRequestStream());
    writer.Write(data);
    writer.Flush();
    writer.Close();

    String result = null;
    WebResponse resp = (WebResponse)req.GetResponse();
    Stream readstream = resp.GetResponseStream();
    StreamReader read = new StreamReader(readstream);

    result = read.ReadToEnd();
</code></pre>

<p></p>

谢谢。

Answer 1

问题是:

req.ContentType = "application/x-www-form-urlencoded";

这告诉服务器您的数据是 URL 编码的，并且“<”是 URL 元字符。要么对您的数据进行 URLEncode，要么不告诉服务器数据已进行 URLEncoded，但实际上并未。