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。