小编use*_*821的帖子

我得到了

"System.Net.ProtocolViolationException:在调用Web请求的"BeginGetResponse"方法时,必须在调用[Begin] GetResponse"错误之前将ContentLength字节写入请求流.

这是我的代码:

try
{
    Stream dataStream = null;
    WebRequest Webrequest;
    Webrequest = WebRequest.Create(this.EndPointAddress);
    Webrequest.Credentials = new NetworkCredential(this.username, this.password);

    Webrequest.ContentType = "text/xml";
    Webrequest.Method = WebRequestMethods.Http.Post;                    

    byteArray = System.Text.Encoding.UTF8.GetBytes(xmlRequest.Children[0].InnerXML);

    Webrequest.ContentLength = byteArray.Length;

    dataStream = Webrequest.GetRequestStream();
    dataStream.Write(byteArray, 0, byteArray.Length);                

    RequestState rs = new RequestState();
    rs.Request = Webrequest;                    

    IAsyncResult r = (IAsyncResult)Webrequest.BeginGetResponse(new AsyncCallback(RespCallback), rs);
}
catch (Exception exc)
{                    
    TRACE.EXCEPTION(exc);
}
finally
{
    dataStream.Close();
}

更具体地说,在调用函数"getRequestStream()"之后,Stream正在为长度抛出此异常:

'stream.Length'抛出了'System.NotSupportedException'类型的异常

可能是什么原因造成的？

我试图使用vbs脚本发送邮件,但它不起作用.我正在使用服务器smtp.gmail.com和端口587.我们的问题是,当我将端口更改为25时,这是有效的.以下是我使用的代码:

    SMTPMail "to", "cc", "TEST", "TEST"


Function SMTPMail(ByVal sTo, ByVal sCc, ByVal sSubject, ByVal sBody)


    Const cdoSendUsingPickup = 1 'Send message using the local SMTP service pickup directory. 
    Const cdoSendUsingPort = 2 'Send the message using the network (SMTP over the network).

    Const cdoAnonymous = 0 'Do not authenticate 
    Const cdoBasic = 1 'basic (clear-text) authentication 
    Const cdoNTLM = 2 'NTLM

    Dim objMessage

    set objMessage = CreateObject("CDO.Message")
    objMessage.Subject = sSubject
    objMessage.Sender = "sender"
    objMessage.From = "from"
    objMessage.To = sTo
    objMessage.CC …