1 /汉字用UTF-8转码
 2         protected string UrlUtf_8(string url)
 3         {
 4             byte[] bs = Encoding.GetEncoding("UTF-8").GetBytes(url);
 5             StringBuilder sb = new StringBuilder();
 6             for (int i = 0; i < bs.Length; i++)
 7             {
 8                 if (bs[i] < 128)
 9                     sb.Append((char)bs[i]);
10                 else
11                 {
12                     sb.Append("%" + bs[i++].ToString("x").PadLeft(2, '0'));
13                     sb.Append("%" + bs[i].ToString("x").PadLeft(2, '0'));
14                 }
15             }
16             return sb.ToString();
17         }
18 //!!!!目前没有找到post的方法，目前也没有找到解决乱码的方法，求解决。
19         //get方法  这里url的模拟地址为http://wthrcdn.etouch.cn/weather_mini?city=北京
20         //如果大神们想把url中的参数city的值"北京"进行转码,请用UrlUtf_8(url)方法
21         public string GetFunction(string url)
22         {
23             string serviceAddress = url;
24             HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
25             request.Method = "GET";
26             request.ContentType = "text/html;charset=UTF-8";
27             HttpWebResponse response = (HttpWebResponse)request.GetResponse();
28             Stream myResponseStream = response.GetResponseStream();
29             //Encoding.GetEncoding("UTF-8")转码
30             StreamReader myStreamReader = new StreamReader(myResponseStream, Encoding.GetEncoding("UTF-8"));
31             //retString取到的值是乱码
32             string retString = myStreamReader.ReadToEnd();
33 
34             myStreamReader.Close();
35             myResponseStream.Close();
36             return retString;
37         }