获取不了网页的源代码

蓦然回首

用程序获取不了http://www.ayhbj.gov.cn/tabid/337/Default.aspx这个网站的源代码，哪位帮帮我啊

Cheungnotes

[C#] 纯文本查看 复制代码

        private void Form1_Load(object sender, EventArgs e)
        {
            HttpHelper http = new HttpHelper();
            HttpItem item = new HttpItem()
            {
                URL = "http://www.ayhbj.gov.cn/tabid/337/Default.aspx",
                Accept = "ext/html, application/xhtml+xml, */*",
            };
            HttpResult result = http.GetHtml(item);

            if (result.Html.Contains("cookie"))
            {
                string p1= StrBetween(result.Html, "cookie|", "|path");
                string p2 = StrBetween(result.Html, "reload|", "'.split");

                item = new HttpItem()
                {
                    URL = "http://www.ayhbj.gov.cn/tabid/337/Default.aspx",
                    Accept = "ext/html, application/xhtml+xml, */*",
                    Cookie = "t3_ar="+p1+"/"+p2,
                };
                result = http.GetHtml(item);
            }
        }

        private string StrBetween(string str,string l,string r)
        {
            string ret = string.Empty;
            int ln = l.Length+str.IndexOf(l);
            int rn = str.IndexOf(r);
            ret = str.Substring(ln,rn-ln);
            return ret;
        }

两次访问，第一次访问获取cookie，第二次访问带上cookie就可以了。

站长苏飞

这个直接获取不到很正常吧，因为网站是分开两步的，第一步先获取Cookie，并通过Js生成一个访问串，然后带这这个Cookie才能获取到实际的值