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
? 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
class="csharp plain"> //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";
});
http://www.cnblogs.com/lyroge/archive/2012/03/29/2423060.html
![[ASP.NET MVC 小牛之路]04](/Upload/SmallIMG/2013080723/6A7389866007F855.png)
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