C#REST API - POST请求:“您必须提供请求主体..”
问题描述:
我只是试图从POST请求获取REST-API响应。C#REST API - POST请求:“您必须提供请求主体..”
收到此错误:
You must provide a request body if you set ContentLength>0 or SendChunked==true. Do this by calling [Begin]GetRequestStream before [Begin]GetResponse
这里是我的代码:
public enum httpVerb
{
GET,
POST,
PUT,
DELETE
}
class RestProvider
{
public string uri { get; set; }
public httpVerb httpMethod { get; set; }
public RestProvider()
{
uri = "";
httpMethod = httpVerb.POST;
}
public string makeRequest()
{
string strResponseValue = string.Empty;
var request = (HttpWebRequest)WebRequest.Create(uri);
request.Method = httpMethod.ToString();
request.ContentLength = uri.Length;
request.ContentType = "application/x-www-form-urlencoded";
HttpWebResponse response = null;
try
{
response = (HttpWebResponse)request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
if (responseStream != null)
{
using (StreamReader reader = new StreamReader(responseStream))
{
strResponseValue = reader.ReadToEnd();
}
}
}
}
catch (Exception ex)
{
strResponseValue = "{\"errorMessages\":[\"" + ex.Message.ToString() + "\"],\"errors\":{}}";
}
finally
{
if (response != null)
{
((IDisposable)response).Dispose();
}
}
return strResponseValue;
}
}
任何想法?
答
这个:request.ContentLength = uri.Length;
是错的。这不是ContentLength
的目的。单独留下ContentLength
(在这种情况下,它将为零),或者发送一些请求内容并将ContentLength
设置为您要发送的请求内容的长度。 uri
不是请求内容。
我如何得到整个请求的长度? –
'ContentLength'不是整个请求的长度。这是***请求内容***的长度。而且你似乎没有发送任何***请求内容***。因此,将ContentLength保留为零。如果您发送***请求内容***,则需要将“ContentLength”设置为***请求内容***的长度(以字节为单位)。 –