asp.net调用飞信免费发短信(测试有效)

#region 免费发送飞们接口(2014-01-06 16:20测试有效) 
/// <summary> 
/// 免费发送飞们接口（要开通飞信把对方加为好友才能发，也可以给自己发做测试） 
/// </summary> 
/// <param name="sendNumber">登陆飞信手机号</param> 
/// <param name="sendPassword">登陆密码</param> 
/// <param name="receiveNumber">接收手机</param> 
/// <param name="Content">短信内容</param> 
/// <returns></returns> 
public bool sendfetion(string sendNumber, string sendPassword, string receiveNumber, string Content) 
{ 
string url = string.Format("https://quanapi.sinaapp.com/fetion.php?u={0}&p={1}&to={2}&m={3}", sendNumber, sendPassword, receiveNumber, HttpUtility.UrlEncode(Content)); 
string strRet = ""; 
try 
{ 
HttpWebRequest hr = (HttpWebRequest)WebRequest.Create(url); 
hr.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)"; 
hr.Method = "GET"; 
hr.Timeout = 30 * 60 * 1000; 
WebResponse hs = hr.GetResponse(); 
Stream sr = hs.GetResponseStream(); 
StreamReader ser = new StreamReader(sr, Encoding.Default); 
strRet = ser.ReadToEnd(); 
} 
catch (Exception er) 
{ 
strRet = ""; 
} 
if (!strRet.Contains(":0")) return false;//成功时返回数据：{"result":0,"message":"\u53d1\u9001\u6210\u529f"} 
return true; 
} 
#endregion 
 
接口是搭建在SinaAppEngine上的，SAE的服务还算是比较牢靠的。 
发送者用户、密码不要写错，然后接收者必须是自己或者飞信好友，才能发送成功。