.net 登录博客园 并且发表文章一篇

目的：用.net代码登录.net并且提交文章一篇

注意：对于asp.net页面中的post请求服务器端会对提交的__VIEWSTATE、__EVENTVALIDATION验证，所以请求时需要提交这两个字段内容

获取__VIEWSTATE、__EVENTVALIDATION两个字段内容，且提交数据登录园子

　　　　　　//获取到url页面的html内容
            var loginpagehtml = RequestHelper.GetResponseContent(url);

            //获取页面中的__VIEWSTATE， __EVENTVALIDATION
            __VIEWSTATE = Regex.Match(loginpagehtml, reg1).Groups[1].Value;
            __EVENTVALIDATION = Regex.Match(loginpagehtml, reg2).Groups[1].Value;

            //提交的数据字典
            Dictionary<string, string> dicdata = new Dictionary<string, string>()
            {
                {"__VIEWSTATE",__VIEWSTATE},
                {"__EVENTVALIDATION", __EVENTVALIDATION},
                {"tbUserName", "username"},
                {"tbPassword", "password"},
                {"__EVENTTARGET",""},
                {"__EVENTARGUMENT", ""},
                {"btnLogin", "登  录"}
            };

            //拼接提交的数据字典为a=1&b=2格式
            var postdata = dicdata.Select(dic => string.Format("{0}={1}", dic.Key, dic.Value)).Aggregate((a, b) => a + "&" + b);

            //提交登录页面request，并且获取response对象
            var response = RequestHelper.GetResponse(url, postdata, (head) => { head.Method = "POST"; head.UserAgent = "Mozilla/5.0"; head.CookieContainer = cc; });

　　

登录后到发表文章页面提交文章一篇，代码如下：

            //提交一篇文章
            var editpostpagehtml = RequestHelper.GetResponseContent("http://www.cnblogs.com/lyroge/admin/EditPosts.aspx?opt=1", null, (head) => { head.CookieContainer = cc; head.AllowAutoRedirect = true; });
            __VIEWSTATE = Regex.Match(editpostpagehtml, reg1).Groups[1].Value;            

            var dicdata = new Dictionary<string, string>()
            {
                {"__VIEWSTATE",__VIEWSTATE},            
                {"__EVENTTARGET",""},          
                {"__EVENTARGUMENT", ""},
                {"Editor$Edit$lkbPost", "发布"},
                {"Editor$Edit$txbTitle", ".net 登录博客园 并且发表文章一篇"},
                {"Editor$Edit$EditorBody", "<p>内容我自己填写</p>"},
                {"Editor$Edit$APOptions$APSiteHome$chkDisplayHomePage", "on"},
                {"Editor$Edit$Advanced$ckbPublished", "on"},
                {"Editor$Edit$Advanced$chkComments","on"},
                {"Editor$Edit$Advanced$chkMainSyndication", "on"},
                {"Editor$Edit$Advanced$txbEntryName",""},
                {"Editor$Edit$Advanced$txbExcerpt", ""},
                {"Editor$Edit$Advanced$txbTag",""},
                {"Editor$Edit$Advanced$tbEnryPassword", ""}
            };
            
            //注意对提交的数据要进行urlencode编码
            var postdata = dicdata.Select(dic => string.Format("{0}={1}", System.Web.HttpUtility.UrlEncode(dic.Key), System.Web.HttpUtility.UrlEncode(dic.Value))).Aggregate((a, b) => a + "&" + b);
            
            var response = RequestHelper.GetResponse("http://www.cnblogs.com/lyroge/admin/EditPosts.aspx?opt=1", postdata, (head) =>
            {
                head.Method = "POST"; head.UserAgent = "Mozilla/5.0"; head.CookieContainer = cc; head.Referer = "http://www.cnblogs.com";
            });