1 public string GetPage(string posturl, string postData)
2 {
3 Stream outstream = null;
4 Stream instream = null;
5 StreamReader sr = null;
6 HttpWebResponse response = null;
7 HttpWebRequest request = null;
8 Encoding encoding = Encoding.UTF8;
9 byte[] data = encoding.GetBytes(postData);
10 // 准备请求...
11 try
12 {
13 // 设置参数
14 request = WebRequest.Create(posturl) as HttpWebRequest;
15 CookieContainer cookieContainer = new CookieContainer();
16 request.CookieContainer = cookieContainer;
17 request.AllowAutoRedirect = true;
18 request.Method = "POST";
19 request.ContentType = "application/x-www-form-urlencoded";
20 request.ContentLength = data.Length;
21 outstream = request.GetRequestStream();
22 outstream.Write(data, 0, data.Length);
23 outstream.Close();
24 //发送请求并获取相应回应数据
25 response = request.GetResponse() as HttpWebResponse;
26 //直到request.GetResponse()程序才开始向目标网页发送Post请求
27 instream = response.GetResponseStream();
28 sr = new StreamReader(instream, encoding);
29 //返回结果网页（html）代码
30 string content = sr.ReadToEnd();
31 string err = string.Empty;
32 Response.Write(content);
33 return content;
34 }
35 catch (Exception ex)
36 {
37 string err = ex.Message;
38 return string.Empty;
39 }
40 }
