C# Post方式傳輸報文，和處理響應，
1 public string DoPost(string url, string data)
2 {
3 HttpWebRequest req = GetWebRequest(url, "POST");
4 byte[] postData = Encoding.UTF8.GetBytes(data);
5 Stream reqStream = req.GetRequestStream();
6 reqStream.Write(postData, 0, postData.Length);
7 reqStream.Close();
8 HttpWebResponse rsp = (HttpWebResponse)req.GetResponse();
9 Encoding encoding = Encoding.GetEncoding(rsp.CharacterSet);
10 return GetResponseAsString(rsp, encoding);
11 }
12
13 public HttpWebRequest GetWebRequest(string url, string method)
14 {
15 HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
16 req.ServicePoint.Expect100Continue = false;
17 req.ContentType = "application/x-www-form-urlencoded;charset=utf-8";
18 req.ContentType = "text/json";
19 req.Method = method;
20 req.KeepAlive = true;
21 req.UserAgent = "mysoft";
22 req.Timeout = 1000000;
23 req.Proxy = null;
24 return req;
25 }
26
27 public string GetResponseAsString(HttpWebResponse rsp, Encoding encoding)
28 {
29 StringBuilder result = new StringBuilder();
30 Stream stream = null;
31 StreamReader reader = null;
32 try
33 {
34 // 以字符流的方式讀取HTTP響應
35 stream = rsp.GetResponseStream();
36 reader = new StreamReader(stream, encoding);
37 // 每次讀取不大於256個字符，並寫入字符串
38 char[] buffer = new char[256];
39 int readBytes = 0;
40 while ((readBytes = reader.Read(buffer, 0, buffer.Length)) > 0)
41 {
42 result.Append(buffer, 0, readBytes);
43 }
44 }
45 finally
46 {
47 // 釋放資源
48 if (reader != null) reader.Close();
49 if (stream != null) stream.Close();
50 if (rsp != null) rsp.Close();
51 }
52
53 return result.ToString();
54 }
