ASP. NET MVC Jsonp cross-domain data acquisition

 Public classJsonpresult:jsonresult {Object_data =NULL;  PublicJsonpresult () {} PublicJsonpresult (Objectdata) {             This. _data =data; }         Public Override voidExecuteresult (ControllerContext context) {if(Context! =NULL) {httpresponsebase response=context.                Httpcontext.response; Httprequestbase Request=context.                HttpContext.Request; stringCallbackfunction = request["Callback"]; if(string. IsNullOrEmpty (callbackfunction)) {Throw NewException ("callback function name is empty"); } response. ContentType="Application/x-javascript"; if(_data! =NULL)                {                    stringStrjson =Newtonsoft.Json.JsonConvert.SerializeObject (_data); Response. Write (string. Format ("{0} ({1});", Callbackfunction, Strjson)); }            }                    }    }

 Public classApicontroller:controller {//Get:api        /// <summary>        ///Log in Account/// </summary>        /// <returns></returns>         PublicJsonpresult GetUserName () {return NewJsonpresult (New{name =User.Identity.Name}); }        /// <summary>        ///If you have logged in, you have logged in to Islogin=1, otherwise 0/// </summary>        /// <returns></returns>         PublicJsonpresult Isuserlogin () {return NewJsonpresult (New{IsLogin = request.isauthenticated?1:0 }); }    }

Client

<script type= "Text/javascript" >varHxsso =function(URL) {return{checkislogin:function(Callbackfun) {$.ajax ({Url:url+ "/api/isuserlogin", type:"GET", DataType:"Jsonp", Jsonp:"Callback", Success:function(data) {if(Callbackfun) {callbackfun (data.islogin);                }                        }                    }); }, LoginName:function(Callbackfun) {$.ajax ({Url:url+ "/api/getusername", type:"GET", DataType:"Jsonp", Jsonp:"Callback", Success:function(data) {if(Callbackfun) {callbackfun (data.name);                }                        }                    }); }            }        }        $(function () {            varSsoobj = Hxsso ("http://192.168.16.241:8520"); //var ssoobj = new Hxsso ("http://www.2.sso.com");Ssoobj.checkislogin (Loginoncallback); functionLoginoncallback (islogin) {varurl = ""; if(IsLogin) {$ ("#ploginOut"). Show (); $("#plogin"). Hide (); if("@isLogin" = = "0") {//SSO is already logged in and is not logged in locally, which requires you to save your own cookies locally. Ssoobj.loginname (Setusercookie); }                }                Else {                    $("#ploginOut"). Hide (); $("#plogin"). Show (); if("@isLogin" = = "1") {//SSO is not logged in, the local is logged in, this requires logging off the local. url = "/home/removeusercookie"; $.ajax ({url:url, type:"GET", Success:function(data) {}}); }                }            }            functionSetusercookie (name) {$.ajax ({URL:"/home/setusercookie?name=" +name, type:"GET", Success:function(data) {}}); }        })    </script>

ASP. NET MVC Jsonp cross-domain data acquisition