Question

我只是想从POST请求中获取REST-API响应。

出现此错误：

如果设置ContentLength＆gt; 0或，则必须提供请求正文 SendChunked ==真。通过之前调用[Begin] GetRequestStream来完成此操作 [开始]的GetResponse

这是我的代码：

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;
    }
}

有什么想法吗？

Answer 1

这：request.ContentLength = uri.Length;错了。这不是ContentLength的用途。单独留下ContentLength，（在这种情况下它将为零），或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。

C＃REST API - POST请求：“您必须提供请求正文......”

1 个答案: