我有一个脚本发送多部分mime,即带有附件的肥皂。我正在使用C#httpWebRequest类。我收到一个错误,指出内容长度是必需的,但我正在使用webrequest的contentLength属性在我的代码中动态设置内容长度。任何想法为什么会这样?感谢名单! 这是代码:
public void sendSOAPoverHttpVoda()
{
try
{
string xmlDoc = this.soapXml;
byte[] bytes;
bytes = Encoding.UTF8.GetBytes(xmlDoc);
long contentSize = bytes.Length;
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(conectionUrl);
req.SendChunked = true;
CredentialCache credentialCacheObj = new CredentialCache();
credentialCacheObj.Add(
new Uri(conectionUrl),
"Basic", new NetworkCredential("dddfff", "dddddd"));
credentialCacheObj.Add(new Uri(conectionUrl), "Digest", new NetworkCredential("dddfff", "dddddd"));
req.Credentials = credentialCacheObj;
req.Method = "POST";
req.ProtocolVersion = HttpVersion.Version11;
req.ContentLength = xmlDoc.Length;
req.ContentType = "multipart/related; boundary=\"----=cellsmart_mm7_SOAP\";type=\"text/xml\";Start=\"</cellsmart_mm7_submit>\"";
req.AllowWriteStreamBuffering = true;
req.Timeout = 20000;
req.Headers.Add("SOAPAction", "");
//req.Connection = "";
if (bytes != null)
{
using (Stream outputStream = req.GetRequestStream())
{
outputStream.Write(bytes, 0, xmlDoc.Length);
}
}
using (HttpWebResponse response = (HttpWebResponse)req.GetResponse())
{
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
string responseText = reader.ReadToEnd();
Console.WriteLine("Response received from URI : " + responseText);
Console.ReadLine();
}
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("Error : " + ex.Message + "\n" + ex.StackTrace);
Console.ReadLine();
}
}
我得到的错误/异常是需要的合同长度(411)
答案 0 :(得分:1)
您不能同时使用SendChunked = true和ContentLength。最简单的方法是使用分块响应并省略ContentLength。您也可以保留ContentLength并省略SendChunked。
如果你不熟悉它,维基百科有一个很好的description of chunking。
答案 1 :(得分:0)
您将contentLength声明为您发送的byte []的长度('bytes'),然后使用xmlDoc的长度作为内容长度 - 这将给出与实际不同的长度。然后在outputStream.Write中使用相同的xmlDoc.Length。
为什么你不使用bytes.Length?或者你已声明但从未使用过的contentLength,我相信这是你的问题,你发送的是xmlDoc.Length(字符串的长度)为bytes.Length(从字符串转换的字节数组的长度),所以当文件发送长度超过预期,错误返回。
试试这个:
public void sendSOAPoverHttpVoda()
{
try
{
string xmlDoc = this.soapXml;
byte[] bytes;
bytes = Encoding.UTF8.GetBytes(xmlDoc);
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(conectionUrl);
req.SendChunked = true;
CredentialCache credentialCacheObj = new CredentialCache();
credentialCacheObj.Add(
new Uri(conectionUrl),
"Basic", new NetworkCredential("dddfff", "dddddd"));
credentialCacheObj.Add(new Uri(conectionUrl), "Digest", new NetworkCredential("dddfff", "dddddd"));
req.Credentials = credentialCacheObj;
req.Method = "POST";
req.ProtocolVersion = HttpVersion.Version11;
req.ContentLength = bytes.Length;
req.ContentType = "multipart/related; boundary=\"----=cellsmart_mm7_SOAP\";type=\"text/xml\";Start=\"</cellsmart_mm7_submit>\"";
req.AllowWriteStreamBuffering = true;
req.Timeout = 20000;
req.Headers.Add("SOAPAction", "");
//req.Connection = "";
if (bytes != null)
{
using (Stream outputStream = req.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
}
using (HttpWebResponse response = (HttpWebResponse)req.GetResponse())
{
Stream responseStream = response.GetResponseStream();
StreamReader reader = new StreamReader(responseStream);
string responseText = reader.ReadToEnd();
Console.WriteLine("Response received from URI : " + responseText);
Console.ReadLine();
}
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine("Error : " + ex.Message + "\n" + ex.StackTrace);
Console.ReadLine();
}
}