如何将base64发布到Webservice(How to POST base64 to Webservice)

我想POST一个参数，它是base64到webservice ，但它不起作用。

string postData = "base64=hySGNg22yX0AIjNQvNJw0xHEbi32NH+iRVKDkbOmUiKpxW0/S6rUgfLmSa527Y8zZ3GmEzfXMB8ry8fH5GjGeJFGqFxDC4A2hLlvIFzyiDeUCqloGDAJoOLa8Jnif1C8nwRte0GNCRM5RXkshLKZP2itZclgDCYz6OgAF7oLNluoB44cZ3AgF1Q8hVgME8LeqgOqxsIzTt3Xn+96j7zp/wA="; byte[] dataArray = Encoding.Default.GetBytes(postData); HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(ServerPage); request.Method = "POST"; request.ContentLength = dataArray.Length; request.ContentType = "application/x-www-form-urlencoded"; Stream dataStream = null; try { dataStream = request.GetRequestStream(); } catch (Exception) { } dataStream.Write(dataArray, 0, dataArray.Length); dataStream.Close();

但requestHeader参数更改为：

base64=hySGNg22yX0AIjNQvNJw0xHEbi32NH%2BiRVKDkbOmUiKpxW0%2FS6rUgfLmSa527Y8zZ3GmEzfXMB8ry8fH5GjGeJFGqFxDC4A2hLlvIFzyiDeUCqloGDAJoOLa8Jnif1C8nwRte0GNCRM5RXkshLKZP2itZclgDCYz6OgAF7oLNluoB44cZ3AgF1Q8hVgME8LeqgOqxsIzTt3Xn%2B96j7zp%2FwA%3D

所以WebService收到一个错误的参数：

[WebMethod] public string GenerateOrder(string base64) { byte[] buffer = Convert.FromBase64String(base64); //Exception here }

I want POST one parameter which is base64 to webservice, but it doesn't work.

string postData = "base64=hySGNg22yX0AIjNQvNJw0xHEbi32NH+iRVKDkbOmUiKpxW0/S6rUgfLmSa527Y8zZ3GmEzfXMB8ry8fH5GjGeJFGqFxDC4A2hLlvIFzyiDeUCqloGDAJoOLa8Jnif1C8nwRte0GNCRM5RXkshLKZP2itZclgDCYz6OgAF7oLNluoB44cZ3AgF1Q8hVgME8LeqgOqxsIzTt3Xn+96j7zp/wA="; byte[] dataArray = Encoding.Default.GetBytes(postData); HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(ServerPage); request.Method = "POST"; request.ContentLength = dataArray.Length; request.ContentType = "application/x-www-form-urlencoded"; Stream dataStream = null; try { dataStream = request.GetRequestStream(); } catch (Exception) { } dataStream.Write(dataArray, 0, dataArray.Length); dataStream.Close();

but parameter in requestHeader changes to:

base64=hySGNg22yX0AIjNQvNJw0xHEbi32NH%2BiRVKDkbOmUiKpxW0%2FS6rUgfLmSa527Y8zZ3GmEzfXMB8ry8fH5GjGeJFGqFxDC4A2hLlvIFzyiDeUCqloGDAJoOLa8Jnif1C8nwRte0GNCRM5RXkshLKZP2itZclgDCYz6OgAF7oLNluoB44cZ3AgF1Q8hVgME8LeqgOqxsIzTt3Xn%2B96j7zp%2FwA%3D

so WebService receives a wrong parameter:

[WebMethod] public string GenerateOrder(string base64) { byte[] buffer = Convert.FromBase64String(base64); //Exception here }