.net/C# HttpWebRequest传送与接收参数

 1 public string PostData(string url, string data)//url：要发送到网站的地址   data：传送需要的参数  
 2 {  
 3 HttpWebRequest myRequest = (HttpWebRequest)WebRequest.Create(url);  
 4 myRequest.Method = "POST";  
 5 myRequest.ContentType = "application/x-www-form-urlencoded";  
 6 myRequest.ContentLength = data.Length;  
 7 Stream newStream = myRequest.GetRequestStream();  
 8 // Send the data.   
 9 ASCIIEncoding encoding = new ASCIIEncoding();  
10 byte[] postdata = encoding.GetBytes(data);  
11 newStream.Write(postdata, 0, data.Length);  
12 newStream.Close();  
13 // Get response   
14 HttpWebResponse myResponse = (HttpWebResponse)myRequest.GetResponse();  
15 StreamReader reader = new StreamReader(myResponse.GetResponseStream(), Encoding.GetEncoding("gb2312"));  
16 string content = reader.ReadToEnd();//得到结果   
17   
18 return content; 

GET方法：

 1  Uri uri = new Uri(url + "?" + postData);  
 2             System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(uri);  
 3             request.Method = "GET";  
 4             request.ContentType = "application/x-www-form-urlencoded";  
 5             request.AllowAutoRedirect = false;  
 6             request.Timeout = 5000;  
 7             System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();  
 8             Stream responseStream = response.GetResponseStream();  
 9             StreamReader readStream = new StreamReader(responseStream, System.Text.Encoding.UTF8);  
10             string retext = readStream.ReadToEnd().ToString();  
11             readStream.Close();  
12             return retext;  
13   
14 }