利用WebApi获取手机号码归属地

@{
ViewBag.Title = "Index";
Layout = null;
}
@*<script src="~/Views/js/jquery-1.7.1.js"></script>*@
@*<script src="~/Views/js/jquery.min.js"></script>*@
<script src="~/Scripts/jquery-1.8.2.min.js"></script>
<h2>Index</h2>
请输入手机号码：<input type="text" id="inputPhoneNum" value=""/><br />
<input type="button" value="获取归属地" id="getPhoneData"/>
<div id="content"></div>
<script>
$(function () {
$('#getPhoneData').click(function () {
var str = "";
var inputPhoneNum = $("#inputPhoneNum").val();
$.ajax({
url: "/APITest/GetPhoneAreaDatet",
data: { phoneNum: inputPhoneNum },
dataType: "json",
success: function (result) {
$('#content').empty();   //清空resText里面的所有内容
var json = result;
var resobj = JSON.parse(json);
//{province:'广东',cityname:'广州'}
$('#content').html("手机号码" + inputPhoneNum + "的归属地为：" + resobj.province + resobj.cityname);
}
});
});
});
</script>

public class APITestController : Controller
{
//
// GET: /APITest/

public ActionResult Index()
{
return View();
}

public JsonResult GetPhoneAreaDatet() {
//1.0 确定url  网络爬虫（蜘蛛）
string phoneNum = Request.QueryString["phoneNum"];
string url = "http://virtual.paipai.com/extinfo/GetMobileProductInfo";
string paras = string.Format("mobile={0}&amount={1}&callname={2}"
, phoneNum
, 10000
, "getPhoneNumInfoExtCallback");
string Result = "";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
//做请求
request.ContentType = "application/x-www-form-urlencoded; charset=gb2312";
request.MaximumAutomaticRedirections = 4;
request.MaximumResponseHeadersLength = 4;

byte[] requestBytes = System.Text.Encoding.UTF8.GetBytes(paras);
request.ContentLength = requestBytes.Length;

Stream requestStream = request.GetRequestStream();
requestStream.Write(requestBytes, 0, requestBytes.Length);
requestStream.Close();

//request.Credentials = CredentialCache.DefaultCredentials;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

//读结果
Stream receiveStream = response.GetResponseStream();
StreamReader readStream = new StreamReader(receiveStream, Encoding.GetEncoding("gb2312"));
Result = readStream.ReadToEnd();
response.Close();
readStream.Dispose();
//{mobile:'13926231057',province:'广东',isp:'中国移动',stock:'1',amount:'10000',maxprice:'0',minprice:'0',cityname:'广州'}

int indexOfProFrist = Result.IndexOf("province")+10;
int indexOfProEnd = Result.IndexOf("isp")-2;
int indexOfCityFrist = Result.LastIndexOf("cityname")+10;
int indexOfCityEnd = Result.IndexOf('}')-1;
string strPro = Result.Substring(indexOfProFrist,indexOfProEnd-indexOfProFrist);
string strCity = Result.Substring(indexOfCityFrist, indexOfCityEnd - indexOfCityFrist);
string strJsObj = "{\"province\":\"" + strPro + "\",\"cityname\":\"" + strCity + "\"}";
//int indexOfName
return Json(strJsObj, JsonRequestBehavior.AllowGet);
}
}