我想从URL获取文本，但文本未在源代码中显示。我只能在inspect元素中看到它。无论如何，在C＃中获取页面的Inspect元素的内容。我用c＃尝试htmlagilitypack，但是给出了null异常。
Class1 class1obj = new Class1();
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "GET";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
if (response.StatusCode == HttpStatusCode.OK)
{
Stream receiveStream = response.GetResponseStream();
StreamReader readStream = null;
if (response.CharacterSet == null)
readStream = new StreamReader(receiveStream);
else
readStream = new StreamReader(receiveStream, Encoding.GetEncoding(response.CharacterSet));
class1obj.Data1 = readStream.ReadToEnd();
Console.WriteLine(class1obj.Data1);
readStream.Close();
}
HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(class1obj.Data1);
// HtmlNodeCollection tables2 = doc.DocumentNode.SelectNodes(".//div[@class='tv_ch_detila h_scroll_detail']");
HtmlNode rows2 = doc.DocumentNode.SelectSingleNode(".//div[@class='sub_text']");
Console.WriteLine(rows2.InnerText);
答案 0 :(得分：0)
这是在页面加载后动态加载的加密数据。得到上述数据的网址是：
它包含JSON格式的“数据”和“pki”节点。你不能只是在等待页面被完全加载时回复。
相反，您只需向给定的URL发出请求并解密文本即可。这是我在这里可以假设的唯一方式。不可靠的方法是在Web浏览器控件中加载URL并等待几秒钟（比如5-10），假设所有内容都已加载，然后解析DocumentText或Web浏览器控件。
我设法为电视节目获取此JSON数据：
{
"gettvguidewithgenre": {
"tvguideprogrammewithgenrelist": [
{
"programmeid": "10000000934920000",
"starttime": "2014-02-25T00:00:00+05:30",
"endtime": "2014-02-25T01:40:00+05:30",
"channelid": "10000000000110000",
"programmename": "Ghatak",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549824121",
"starttime": "2014-02-25T01:40:00+05:30",
"endtime": "2014-02-25T03:50:00+05:30",
"channelid": "10000000000110000",
"programmename": "Time Limit-36 Ghante",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Drama",
"Isrecommended": "1"
},
{
"programmeid": "30000000549816018",
"starttime": "2014-02-25T03:50:00+05:30",
"endtime": "2014-02-25T05:40:00+05:30",
"channelid": "10000000000110000",
"programmename": "Volcano High",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549673440",
"starttime": "2014-02-25T05:40:00+05:30",
"endtime": "2014-02-25T08:10:00+05:30",
"channelid": "10000000000110000",
"programmename": "Maa Beti",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Drama",
"Isrecommended": "1"
},
{
"programmeid": "10000001008740000",
"starttime": "2014-02-25T08:10:00+05:30",
"endtime": "2014-02-25T11:05:00+05:30",
"channelid": "10000000000110000",
"programmename": "Dus",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549644318",
"starttime": "2014-02-25T11:05:00+05:30",
"endtime": "2014-02-25T13:55:00+05:30",
"channelid": "10000000000110000",
"programmename": "Money Hai Toh Honey Hai",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Comedy",
"Isrecommended": "1"
},
{
"programmeid": "30000000549646489",
"starttime": "2014-02-25T13:55:00+05:30",
"endtime": "2014-02-25T17:15:00+05:30",
"channelid": "10000000000110000",
"programmename": "Farz",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Drama",
"Isrecommended": "1"
},
{
"programmeid": "30000000549709799",
"starttime": "2014-02-25T17:15:00+05:30",
"endtime": "2014-02-25T20:00:00+05:30",
"channelid": "10000000000110000",
"programmename": "Action Replayy",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Comedy",
"Isrecommended": "1"
},
{
"programmeid": "30000000549664553",
"starttime": "2014-02-25T20:00:00+05:30",
"endtime": "2014-02-25T23:25:00+05:30",
"channelid": "10000000000110000",
"programmename": "Indian",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549781987",
"starttime": "2014-02-25T23:25:00+05:30",
"endtime": "2014-02-26T00:00:00+05:30",
"channelid": "10000000000110000",
"programmename": "Narsimha - Man Of Power",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Drama",
"Isrecommended": "1"
},
{
"programmeid": "30000000549741259",
"starttime": "2014-02-25T00:00:00+05:30",
"endtime": "2014-02-25T02:00:00+05:30",
"channelid": "10000000000540000",
"programmename": "The Dirty Picture",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Drama",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T02:00:00+05:30",
"endtime": "2014-02-25T02:40:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T02:40:00+05:30",
"endtime": "2014-02-25T03:00:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T03:00:00+05:30",
"endtime": "2014-02-25T03:25:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T03:25:00+05:30",
"endtime": "2014-02-25T03:40:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T03:40:00+05:30",
"endtime": "2014-02-25T04:00:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "30000000549867681",
"starttime": "2014-02-25T04:00:00+05:30",
"endtime": "2014-02-25T04:25:00+05:30",
"channelid": "10000000000540000",
"programmename": "Extraa Shots Special",
"m2ecategoryname": "TV Show",
"m2esubcategoryname": "Entertainment",
"Isrecommended": "1"
},
{
"programmeid": "10000001078790000",
"starttime": "2014-02-25T18:08:00+05:30",
"endtime": "2014-02-25T20:30:00+05:30",
"channelid": "10000000000210000",
"programmename": "Aadmi",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549651842",
"starttime": "2014-02-25T20:30:00+05:30",
"endtime": "2014-02-25T23:16:00+05:30",
"channelid": "10000000000210000",
"programmename": "Dum",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Action",
"Isrecommended": "1"
},
{
"programmeid": "30000000549828153",
"starttime": "2014-02-25T23:16:00+05:30",
"endtime": "2014-02-26T00:00:00+05:30",
"channelid": "10000000000210000",
"programmename": "Aakhri Baazi",
"m2ecategoryname": "Film",
"m2esubcategoryname": "Romance",
"Isrecommended": "1"
}
],
"channelinfo": [
{
"ChannelID": "10000000000110000",
"ChannelName": "STAR GOLD",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000110000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000540000",
"ChannelName": "MAX",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000540000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000620000",
"ChannelName": "TEN SPORTS",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000620000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000700000",
"ChannelName": "HBO",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000700000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000100000",
"ChannelName": "STAR MOVIES",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000100000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000080000",
"ChannelName": "STAR PLUS",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000080000.png",
"ischannelfavorite": "false"
},
{
"ChannelID": "10000000000210000",
"ChannelName": "ZEE CINEMA",
"LCN": "0",
"Operator_Id": "2645",
"logofileurl": "http://images.whatsonindia.com/WhatsOnTv/Images/applicationchannellogo/10000000000210000.png",
"ischannelfavorite": "false"
}
]
}
}
它使用CryptoJS进行加密和解密。