为何Post数据无响应，Post空数据则有响应，附代码。

cjvega

想模拟登录的地址：http://fanxing.kugou.com/index.php?action=msgBox
账号密码随意输入，只要能拿到响应。
根据抓包内容，得到如下代码。但是POST参数有值的话，就会拿不到响应。

    public class MockRequest
    {
        private string url = "http://fanxing.kugou.com/Services.php?act=UserService.UserService&mtd=login";
        private string referer = "http://fanxing.kugou.com/index.php?action=msgBox";
        private string param = "args=[\"123\",\"123\",\"\" ,\"0\"]&test=";
        private string contentType = "application/x-www-form-urlencoded";
        private string userAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko";
        private string host = "fanxing.kugou.com";

        byte[] data;

        private CookieContainer theCC = new CookieContainer();

        public MockRequest()
        {
            //使用请求参数 得不到相应
            data = Encoding.UTF8.GetBytes(param);

            //如果无请求参数 可以得到响应
            //data = new byte[] { };
        }

        public void Run()
        {
            LoginByRequest();
            //LoginByWebClient();
        }

        private void LoginByRequest()
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "POST";
            request.Accept = "*/*";
            request.ContentType = contentType;
            request.Referer = referer;

            request.ContentLength = data.Length;
            request.UserAgent = userAgent;

            request.Host = host;
            request.KeepAlive = true;
            request.Headers["Accept-Encoding"] = "gzip, deflate";
            request.Headers["Accept-Language"] = "zh-CN";

            Stream newStream = request.GetRequestStream();
            newStream.Write(data, 0, data.Length);
            newStream.Close();

            request.CookieContainer = theCC;

            HttpWebResponse response = (HttpWebResponse)request.GetResponse();
            theCC.Add(response.Cookies);
            Stream stream = response.GetResponseStream();
            string result = new StreamReader(stream, System.Text.Encoding.UTF8).ReadToEnd();
        }

        private void LoginByWebClient()
        {
            WebClient wc = new WebClient();

            wc.Headers.Add("Content-Type", contentType);
            wc.Headers.Add("ContentLength", data.Length.ToString());

            byte[] recData = wc.UploadData(url, "POST", data);

            string result = Encoding.UTF8.GetString(recData);
        }
    }

站长苏飞

这个是Http协议版本的问题，直接用Httphelper万能框架可实现

[C#] 纯文本查看 复制代码

            HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://fanxing.kugou.com/Services.php?act=UserService.UserService&mtd=login",//URL     必需项    
                Method = "post",//URL     可选项 默认为Get   
                Cookie = "GameLastLogin=487259631",//字符串Cookie     可选项   
                Referer = "http://fanxing.kugou.com/index.php?action=msgBox",//来源URL     可选项   
                Postdata = "args=[\"sufei\",\"123456\",\"\" ,\"0\"]&test=",//Post数据     可选项GET时不需要写   
                UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",//用户的浏览器类型，版本，操作系统     可选项有默认值   
                ContentType = "application/x-www-form-urlencoded",//返回类型    可选项有默认值   
            };
            item.ProtocolVersion = HttpVersion.Version10;
            HttpResult result = http.GetHtml(item);
            string html = result.Html;
            string cookie = result.Cookie;

账户密码我乱写的，改成自己的就行了

站长苏飞

POST /Services.php?act=UserService.UserService&mtd=login HTTP/1.1

现这种情况要可以加一句item.ProtocolVersion = HttpVersion.Version10;

cjvega

可以了。多谢。