摘要：
1.添加SetHeaderValue方法：publicstaticvoidSetHeaderValue（WebHeaderCollectionheader，stringname，stringvalue）｛varproperty=typeof（WebHeader Collection）.GetProperty（“InnerCollection”，BindingFlags.Instance | Bind
1、添加一个SetHeaderValue方法：
public static void SetHeaderValue(WebHeaderCollection header, string name, stringvalue) { var property = typeof(WebHeaderCollection).GetProperty("InnerCollection",BindingFlags.Instance |BindingFlags.NonPublic); if (property != null) { var collection = property.GetValue(header, null) asNameValueCollection; collection[name] =value; } }
2、调用这个方法设置HttpHeader头：
HttpWebRequest rq = (HttpWebRequest)WebRequest.Create("Url"); rq.Method = "GET"; SetHeaderValue(rq.Headers, "Host", "127.0.0.1"); SetHeaderValue(rq.Headers, "Connection", "keep-alive"); SetHeaderValue(rq.Headers, "Accept", "*/*"); SetHeaderValue(rq.Headers, "X-Requested-With", "XMLHttpRequest"); SetHeaderValue(rq.Headers, "User-Agent", "..."); SetHeaderValue(rq.Headers, "Referer", "http://127.0.0.1/index.php?m=Index&a=indexs"); SetHeaderValue(rq.Headers, "Accept-Encoding", "gzip, deflate"); SetHeaderValue(rq.Headers, "Accept-Language", "1.5"); SetHeaderValue(rq.Headers, "Cookie", "This is Cookie"); HttpWebResponse resp =(HttpWebResponse)rq.GetResponse(); using (Stream stream =resp.GetResponseStream()) { StreamReader reader =newStreamReader(stream,Encoding.Default); string responseString =reader.ReadToEnd(); MessageBox.Show(responseString); }
3.可以通过抓包软件（如SRSniffer）查看到设置的报头。
来源;https://www.cnblogs.com/hnsongbiao/p/9381987.html