如何解决发送Web服务请求时出错:必须提供请求正文
我写了下面的代码-
HttpWebRequest lHttpWebRequest = (HttpWebRequest)WebRequest.Create(url);
lHttpWebRequest.Method = "POST";
lHttpWebRequest.Headers.Add("Accept-Encoding","gzip,deflate");
lHttpWebRequest.ContentType = "text/xml";
lHttpWebRequest.KeepAlive = false;
ASCIIEncoding lEnCoding = new ASCIIEncoding();
byte[] lData = lEnCoding.GetBytes(xmlDocument.InnerXml);
lHttpWebRequest.ContentLength = lData.Length;
HttpWebResponse lHttpWebResponse = (HttpWebResponse)lHttpWebRequest.GetResponse();
我遇到错误-
You must provide a request body if you set ContentLength>0 or SendChunked==true. Do this by calling [Begin]GetRequestStream before [Begin]GetResponse.
我在最后一行出现错误-
HttpWebResponse lHttpWebResponse = (HttpWebResponse)lHttpWebRequest.GetResponse();
解决方法
我添加了-
ASCIIEncoding lEnCoding = new ASCIIEncoding();
byte[] lData = lEnCoding.GetBytes(xmlDocument.InnerXml);
lHttpWebRequest.ContentLength = lData.Length;
using (Stream requestStream = lHttpWebRequest.GetRequestStream())
{
requestStream.Write(lData,lData.Length);
requestStream.Close();
}
这行得通。
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