angularjs跨域调取webservice

<webServices>
<!--必须添加-->
<protocols>
<add name="HttpGet"/>
<add name="HttpPost"/>
</protocols>
</webServices>

<httpModules>
<add name="JsonpHttpModule" type="MJN.Common.JsonpHttpModule" />
</httpModules>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Services;
using System.Web.Script.Services;
using MJN.Common;

namespace MJN
{
/// <summary>
/// WebService1 的摘要说明
/// </summary>
[WebService(Namespace = "http://tempuri.org/")]
[WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
[System.ComponentModel.ToolboxItem(false)]
// 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务，请取消对下行的注释。
[System.Web.Script.Services.ScriptService]

public class WebService1 : System.Web.Services.WebService
{
[WebMethod]
public string getTime()
{
ResonseMessage result = new ResonseMessage()
{
state = "1",
msg = new Random().Next(1, 10000).ToString()
};
return result.ToJson();
}

}
}

services.factory('httpService', ['$resource', '$http', '$q', '$templateCache',
function ($resource, $http, $q, $templateCache) {
return {
setting: function (url, data) {
var deferred = $q.defer();
method = (url.indexOf('http') > -1) ? 'JSONP' : 'POST';
$http({
method: method,
url: url,
cache: $templateCache,
data: data
//headers: { 'Content-Type': 'application/json;charset=UTF-8' }
//headers: { 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8' }
}).success(function (data, status, headers, config) {
deferred.resolve(data, status, headers, config);
}).error(function (data, status, headers, config) {
deferred.reject("network error");
});
return deferred.promise;
}
};
} ]);

httpService.setting('http://10.20.26.19/mjn/WebService1.asmx/getTime?callback=JSON_CALLBACK&format=jsonp&t=' + new Date().getTime()).then(function (data, status, headers, config) {
console.log(data);
}, function (reason) {
console.log(reason);
});