WebRequest Post 及Get 数据

 1  public class WebRequestHelper
 2     {
 3         /// <summary>
 4         /// 以POST 形式请求数据
 5         /// </summary>
 6         /// <param name="RequestPara"></param>
 7         /// <param name="Url"></param>
 8         /// <returns></returns>
 9       public  static string PostData(string RequestPara,string Url)
10         {
11             WebRequest hr = HttpWebRequest.Create(Url);
12 
13             byte[] buf = System.Text.Encoding.GetEncoding("utf-8").GetBytes(RequestPara);
14             hr.ContentType = "application/x-www-form-urlencoded";
15             hr.ContentLength = buf.Length;
16             hr.Method = "POST";
17 
18             System.IO.Stream RequestStream = hr.GetRequestStream();
19             RequestStream.Write(buf, 0, buf.Length);
20             RequestStream.Close();
21 
22             System.Net.WebResponse response = hr.GetResponse();
23             StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("utf-8"));
24             string ReturnVal = reader.ReadToEnd();
25             reader.Close();            
26             response.Close();
27 
28             return ReturnVal;
29         }
30 
31         /// <summary>
32         /// 以GET 形式获取数据
33         /// </summary>
34         /// <param name="RequestPara"></param>
35         /// <param name="Url"></param>
36         /// <returns></returns>
37 
38       public static  string GetData(string RequestPara, string Url)
39         {
40             RequestPara=RequestPara.IndexOf('?')>-1?(RequestPara):("?"+RequestPara);
41 
42             WebRequest hr = HttpWebRequest.Create(Url + RequestPara);
43 
44             byte[] buf = System.Text.Encoding.GetEncoding("utf-8").GetBytes(RequestPara);          
45             hr.Method = "GET";
46 
47             System.Net.WebResponse response = hr.GetResponse();
48             StreamReader reader = new StreamReader(response.GetResponseStream(), Encoding.GetEncoding("utf-8"));
49             string ReturnVal = reader.ReadToEnd();
50             reader.Close();
51             response.Close();
52 
53             return ReturnVal;
54         }
55     }