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
      //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";
});

标签