我对下面的网站输入不同的publication.NO进行检索,利用GetPage函数获取检索后的网页源文件:
http://www.epoline.org/portal/public/!ut/p/kcxml/04_Sj9SPykssy0xPLMnMz0vM0Y_QjzKLN4i3dAHJgFjGpvqRqCKOcAFvfV-P_NxU_QD9gtzQiHJHRUUA43OWZA!!/delta/base64xml/L3dJdyEvUUd3QndNQSEvNElVRS82XzBfOUc!假若我输入EP1023469,postData根据ieHTTPHeaders软件得到,
其中,string url="http://www.epoline.org/portal/public/!ut/p/kcxml/04_Sj9SPykssy0xPLMnMz0vM0Y_QjzKLN4i3dAHJgFjGpvqRqCKOcAFvfV-P_NxU_QD9gtzQiHJHRUUA43OWZA!!/delta/base64xml/L3dJdyEvUUd3QndNQSEvNElVRS82XzBfOUc!";string postData="RCOUNTRY=EP&RIID=ANONYMOUS&RROLE=PUBLIC&RORGNAME=EPOPORTAL&RSEARCHSTARTNUMBER=1&RFIELDFUNCTION1=%3D&RFIELDOPERATOR1=AND&RFIELDNAME1=publication-number&RFIELDVALUE1=EP1023469";string encodeType = "UTF-8";为什么得到的html结果总是最开始检索的页面源文件,不管我输入什么postData,结果都不变?
谢谢大家的回答!public string GetPage(string url, string postData, string encodeType, out string err)
        {
            Stream outstream = null;
            Stream instream = null;
            StreamReader sr = null;
            HttpWebResponse response = null;
            HttpWebRequest request = null;            Encoding encoding = Encoding.GetEncoding(encodeType);
            byte[] data = encoding.GetBytes(postData);            // 准备请求... 
            try
            {
                // 设置参数 
                request = WebRequest.Create(url) as HttpWebRequest;
                CookieContainer cookieContainer = new CookieContainer();
                request.CookieContainer = cookieContainer;
                request.AllowAutoRedirect = true;
                request.Method = "POST";
                request.ContentType = "application/x-www-form-urlencoded";
                
                request.ContentLength = data.Length;                outstream = request.GetRequestStream();
                outstream.Write(data, 0, data.Length);
                outstream.Close();                //发送请求并获取相应回应数据 
                response = request.GetResponse() as HttpWebResponse;                //直到request.GetResponse()程序才开始向目标网页发送Post请求 
                instream = response.GetResponseStream();                sr = new StreamReader(instream, encoding);                //返回结果网页(html)代码 
                string content = sr.ReadToEnd();
                err = string.Empty;                return content;
            }
            catch (Exception ex)
            {
                err = ex.Message;
                return string.Empty;
            }
        }