HttpWebRequest请求网站ajaxpro.ashx

qq_35151688 2018-12-18 03:22:14

这是工具抓包的

HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url.ToString());

                byte[] data = Encoding.UTF8.GetBytes(json);

                myRequest.CookieContainer = cookies;

                myRequest.Method = "POST";

                myRequest.Timeout = 30000;

                myRequest.Referer = refs;

                myRequest.Accept = "*/*";

                myRequest.Headers["Accept-Language"] = "zh-CN,zh;q=0.9";

                myRequest.Headers["X-AjaxPro-Method"] = method;

                myRequest.Headers["Origin"] = "www.cnelc.com";

                myRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36";

                myRequest.ContentType = "text/plain; charset=utf-8";

                myRequest.AllowAutoRedirect = true;              

                myRequest.ContentLength = data.Length;

                Stream newStream = myRequest.GetRequestStream();

                newStream.Write(data, 0, data.Length);

                newStream.Close();

                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

                myResponse.Cookies = cookies.GetCookies(myResponse.ResponseUri);

                cookies.Add(myResponse.Cookies);

                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);

                string outdata = reader.ReadToEnd();

                reader.Close();

                myResponse.Close();

                return outdata;

我的代码

返回的内容是{"error":{"Message":"obj","Type":"System.NotSupportedException"}}

...全文

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qq_35151688 2018-12-20

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引用 7 楼 howze 的回复:

[quote=引用 6 楼 qq_35151688 的回复:]
这是一个发布信息的请求

你这个是在登陆状态下POST的？[/quote]请问这是什么情况

qq_35151688 2018-12-19

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CookieContainer cookies = new CookieContainer();

        public Image doGetImg()

        {

            try

            {

                string url = "http://www.cnelc.com/VerificationCode/CheckCode.aspx?Num=4";

                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url.ToString());

                myRequest.CookieContainer = cookies;

                myRequest.Method = "GET";

                myRequest.Accept = "image/webp,image/apng,image/*,*/*;q=0.8";

                myRequest.Referer = "http://www.cnelc.com/user/Login.aspx";

                myRequest.Headers.Add("Accept-Encoding", "gzip, deflate");

                myRequest.Headers.Add("Accept-Language", "zh-CN,zh;q=0.9");

                myRequest.KeepAlive = true;

                myRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36";

                myRequest.ContentType = "image/Gif; charset=utf-8";

                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

                myResponse.Cookies = cookies.GetCookies(myResponse.ResponseUri);

                cookies.Add(myResponse.Cookies);

                return Bitmap.FromStream(myResponse.GetResponseStream());

            }

            catch(Exception ex)

            {

                return null;

            }

        }



        public string doPost()

        {

            try

            {

                string Url = "http://www.cnelc.com/user/Login.aspx";

                HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(Url.ToString());

                myRequest.CookieContainer = cookies;

                myRequest.Referer = " http://www.cnelc.com/user/Login.aspx";

                myRequest.Method = "POST";

                myRequest.Timeout = 30000;

                myRequest.Headers["Cache-control"] = "max-age=0";

                myRequest.Headers["Origin"] = "http://www.cnelc.com";

                myRequest.Headers["Accept-Encoding"] = "gzip, deflate";

                myRequest.Headers["Accept-Encoding"] = "zh-CN,zh;q=0.9";

                myRequest.Headers["Upgrade-Insecure-Requests"] = "1";

                myRequest.UserAgent = "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36";

                myRequest.ContentType = "application/x-www-form-urlencoded";

                myRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8";

                string poststr = "__VIEWSTATE=%2FwEPDwUKMTg4NTQ0NDYzNWRkN9lElDjzvutr%2Fbh%2Bfa8%2B6a3sX2YR1jJ%2F4ZqhN2RhwCw%3D&__EVENTVALIDATION=%2FwEWBgLc%2B5HGBgKl1bKzCQKd%2B7qdDgLChPzDDQL07onSBgKgt7D9CtkAQM2nDOH0B%2BGNB1FadPmeXm4eRkF3K4BcsHI3U6Io&txtUserName=" + txtUserName.Text + "&txtPwd=" + txtPwd.Text + "&txtCode=" + txtCode.Text + "&bntLogin=";

                byte[] data = Encoding.UTF8.GetBytes(poststr);

                myRequest.ContentLength = data.Length;

                Stream newStream = myRequest.GetRequestStream();

                newStream.Write(data, 0, data.Length);

                newStream.Close();

                HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();

                StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.UTF8);

                string outdata = reader.ReadToEnd();

                myResponse.Cookies = cookies.GetCookies(myResponse.ResponseUri);

                cookies.Add(myResponse.Cookies);

                reader.Close();

                if (outdata.Contains("该用户不存在"))

                {

                    MessageBox.Show("该用户不存在");

                }

                else if (outdata.Contains("密码不正确"))

                {

                    MessageBox.Show("密码不正确");

                }

                else if (outdata.Contains("验证码不正确"))

                {

                    MessageBox.Show("验证码不正确");

                }

                return outdata;

            }

            catch (Exception ex)

            {

                return ex.Message;

            }

        }