Couchdb....HttpWebRequest

Question

我在让HTTP PUT方法与Couchdb create数据库一起工作时遇到了问题。代码没什么可怕的，你们都看过了，所以不会发布，因为它太无聊了。使用put方法is Connection is Closed时的错误消息。有没有什么我应该知道的，of....something真的点了头。当我使用POST方法时，我得到了404，这在使用Couchdb创建新数据库的上下文中是正确的。任何帮助都非常感谢。HTTPWebRequest能做PUT方法吗?如果不能，我不明白为什么不能。

更具体地说:错误是:底层连接关闭:连接意外关闭。

我已经用CURL...and检查过Couchdb，它工作得很好。

此point...after将方法设置为"PUT“时出错

Stream requestStream = httpWebRequest.GetRequestStream();

代码片段：

private string DataViaHTTP(string url, Dictionary<string, string> parameters, string content, string contentType, int timeout, bool contentIsParam, string method)
{
    byte[] requestData;
    try
    {
        HttpWebRequest httpWebRequest;

        if (contentIsParam == false)
        {
            requestData = System.Text.Encoding.ASCII.GetBytes(content);
            httpWebRequest = (HttpWebRequest)WebRequest.Create(BuildParamString(url, parameters));
        }
        else
        {
            requestData = System.Text.Encoding.ASCII.GetBytes(BuildParamString(null, parameters));
            httpWebRequest = (HttpWebRequest)WebRequest.Create(url);
        }

        httpWebRequest.Method = method;
        httpWebRequest.ContentType = contentType;

        if (timeout > 0)
        {
            httpWebRequest.Timeout = timeout;
        }

        httpWebRequest.ContentLength = requestData.Length;
        Stream requestStream = httpWebRequest.GetRequestStream();
        requestStream.Write(requestData, 0, requestData.Length);
        requestStream.Close();

        // Read and return the response stream
        HttpWebResponse httpWebResponse = (HttpWebResponse)httpWebRequest.GetResponse();

        Stream outStream = httpWebResponse.GetResponseStream();


        var stringStream = String.Empty;
        using (StreamReader streamReader = new StreamReader(outStream))
        {
            stringStream = streamReader.ReadToEnd();

        }

        return stringStream;
    }
    catch (WebException e)
    {
        throw e;
    }
    catch (Exception e)
    {

        throw e;
    }
}

这也不起作用:(

public string PutCommand(string url)
{
    try
    {
        using (WebClient webclient = new WebClient())
        {
            webclient.Headers["User-Agent"] = "Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US) AppleWebKit/532.5 (KHTML, like Gecko) Chrome/4.0.249.89 Safari/532.5";
            webclient.Encoding = System.Text.Encoding.ASCII;
            var x = webclient.UploadData(url, "PUT", new byte[] {});
            return System.Text.Encoding.ASCII.GetString(x);
        }
    }
    catch (Exception e)
    {
        throw e;
    }
}

Answer 1

我知道这不是问题的解决方案，但是如果您只是想从一个网址中获取数据，那么为什么不能使用System.Net.WebClient类呢？它将消除你所写的大量杂乱的代码。你可以只用一行字来使用它，就像这样：

string data = new WebClient().DownloadString(@"http://whateverURL.com/?options=1&somethingElse=5");