解析html下的xml文件_html 解析xml-优快云博客

本文链接：https://blog.youkuaiyun.com/HelloWorldww/article/details/7599458

本文演示了如何使用C#进行HTTP请求并解析响应，包括创建请求、发送请求、获取响应流、读取响应内容并展示结果。

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string Path = ” ";

          //   Creates   an   HttpWebRequest   with   the   specified   URL.
            HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(Path);
            //   Sends   the   HttpWebRequest   and   waits   for   the   response.
            HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
            //   Gets   the   stream   associated   with   the   response.
            Stream receiveStream = myHttpWebResponse.GetResponseStream();
            Encoding encode = System.Text.Encoding.GetEncoding("utf-8");
            //   Pipes   the   stream   to   a   higher   level   stream   reader   with   the   required   encoding   format.
            StreamReader sr = new StreamReader(receiveStream, encode);

            string rl;
            StringBuilder sb = new StringBuilder();
            while ((rl = sr.ReadLine()) != null)
            {

sb.Append(rl);

}
string stra = sb.ToString();

            try
            {
                //Get XML
                int IndexofA = stra.IndexOf("<?xml version=\"1.0\" encoding=\"utf-16\"?>");
                int IndexofB = stra.IndexOf("</span>");
                string Ru = stra.Substring(IndexofA, IndexofB - IndexofA);
                //Replace localhost
                lblMess.Text = Ru.ToString();
            }
            catch
            {
                lblMess.Text = "无法查询!";
            }