张贴到api

Question

我可以从我的api获取，但我无法发帖。它适用于邮递员。所以服务器没有问题。 我检查过三种方式：httpclient，httpwebrequest，webclient，但不适用于我：

1：

        string data = "Name=mohammadi&BirthDate=1382-01-01&IsMarried=false&PersonId=16";
        var client = new HttpClient();
        var stringContent = new StringContent(data, Encoding.UTF8, "application/x-www-form-urlencoded");
        var s = await client.PostAsync(url, stringContent);
        var content = s.Result;

内容说：“内部服务器错误”并且没有异常抛出

2：

        string data = "Name=mohammadi&BirthDate=1382-01-01&IsMarried=false&PersonId=16";
        WebClient w = new WebClient();
        var str = w.OpenWrite(url, "POST");
        w.Headers.Set(HttpRequestHeader.ContentType, "application/x-www-form-urlencoded");
        var writer = new StreamWriter(str);
        writer.Write(data);
        writer.Flush();

不起作用，什么都不说

3：

        string data = "Name=mohammadi&BirthDate=1382-01-01&IsMarried=false&PersonId=16";
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
        request.Method = "POST";
        request.ContentType = "application/x-www-form-urlencoded";
        var stream = await request.GetRequestStreamAsync();

        using (var writer = new StreamWriter(stream))
        {
            writer.Write(data);
            writer.Flush();
            writer.Dispose();
        }

        stream.Dispose();

不起作用，什么都不说