WebAPI filter interception processing and exception trapping

Intercept actions on action

  Public classUserauthorizeattribute:actionfilterattribute {/// <summary>        ///token for CC calls/// </summary>        //private static readonly string cctoken = configurationmanager.appsettings["Cctoken"]. ToString ();        /// <summary>        ///WEBAPI Request for monitoring/// </summary>        /// <param name= "Actioncontext" ></param>         Public Override voidonactionexecuting (Httpactioncontext ohttpactioncontext) {stringActionName = ohttpactioncontext.controllercontext.routedata.values["Action"].            ToString (); if(ActionName = ="Login"|| ActionName = ="postsendsms")            {                return; } httpcontextbase ohttpcontextbase= (httpcontextbase) ohttpactioncontext.request.properties["Ms_httpcontext"];//Get Traditional context            stringStoken = ohttpcontextbase.request.form["Token"];//Check the post first .            if(string. IsNullOrEmpty (Stoken)) Stoken= ohttpcontextbase.request.querystring["Token"];//and check it out from Get .//1. Verify token            if(string. IsNullOrEmpty (Stoken)) {httpresponsemessage Ohttpresponsemessage=NewHttpresponsemessage (); Ohttpresponsemessage.content=NewStringcontent ("{' Flag ': false, ' Message ': ' token is null ', ' resultobj ': null, ' Code ': ' 9101 '}", Encoding.UTF8,"Application/json"); Throw Newhttpresponseexception (ohttpresponsemessage); }            stringCctoken = configurationmanager.appsettings["Cctoken"].            ToString (); if(Stoken = =Cctoken) {                return; } logininfobiz loginbiz=Newlogininfobiz (); E_logininfo value=Loginbiz.gettoken (Stoken); if(Value = =NULL) {httpresponsemessage ohttpresponsemessage=NewHttpresponsemessage (); Ohttpresponsemessage.content=NewStringcontent ("{' Flag ': false, ' Message ': ' token invalidation ', ' resultobj ': null, ' Code ': ' 9101 '}", Encoding.UTF8,"Application/json"); Throw Newhttpresponseexception (ohttpresponsemessage); } oHttpActionContext.ControllerContext.Request.Properties.Add ("Itcode", value.        Engcode); }    }

When an Ajax call is made to an exception in error, it gets the exception information thrown in the interceptor.

function Apitest () {$ ("#result"). HTML (""); $.ajax ({type: $ ("#type"). Val (), DataType:"JSON", URL: $ ("#url"). Val (), Data:eval ("("+ $("#data"). Val () +")"), success:function (results) {if(typeofResults = ="Object") {                        $("#result"). HTML (json.stringify (results)); }                    Else {                        varResultobj =Json.parse (results); $("#result"). HTML (results); }                    //when used, it needs to be converted to a JSON object}, Error:function (XMLHttpRequest, Textstatus, Errorthrown) {alert                (Xmlhttprequest.responsetext);        }            }); }

WebAPI filter interception processing and exception trapping