Ajax calls WebService resolve cross-domain and post-to-server local calls successful external network failure issues

WebService code

1     /// <summary>2     ///Summary description of Messervice3     /// </summary>4[WebService (Namespace ="http://tempuri.org/")]5[WebServiceBinding (ConformsTo =wsiprofiles.basicprofile1_1)]6     //[System.ComponentModel.ToolboxItem (false)]7     //To allow this Web service to be called from a script using ASP. NET AJAX, uncomment the following line. 8 [System.Web.Script.Services.ScriptService]9      Public classMESService:System.Web.Services.WebServiceTen     { One  A[WebMethod (Description ="")] -          Public stringGETDATARETURNSTR (stringstrxml) -         { the             //your results to deal with -             #regionWorking with Data -  -             #endregion +             returnCommon.JsonHelper.SerializeToJson (NewStudent () {id ="1", name ="Test" }); -         } +  A         at     } - [Serializable] -      Public classStudent -     { -          Public stringID {Get;Set; } -          Public stringName {Get;Set; } in}

Information to add in the WebService file

[System.Web.Script.Services.ScriptService]

Need to add nodes in the Webconfig file

1. Resolving cross-domain access issues

<system.webServer> <!--resolving cross-domain requests--"Access-control-allow-methods"Value="Options,post,get"/> <add name="access-control-allow-headers"Value="X-requested-with,content-type"/> <add name="Access-control-allow-origin"Value="*"/> </customHeaders> 
2. Solve the problem that the local call succeeds and the external network call fails.
<system.web>    <webServices>      <protocols>        <add name="httpsoap "/>        <add name="httppost"/>        <add name="  HttpGet"/>        <add name="documentation"/>      </protocols>    </webServices></system.web>
Ajax Code
1 $.ajax ({2 Async:true,3 type: "Post",4 URL: "Http://localhost:41453/IDataServer/MESService.asmx/GetDataReturnStr",5 data: "{strxml: ' 123123123 '}",6 dataType: "JSON",7 contentType: "Application/json; Charset=utf-8 ",8 success:function (JSON) {9 var dataobj = eval ("(" + JSON.D + ")");Ten alert (dataobj.id + ' \ r \ n ' + dataobj.name); One                 }, A error:function () { -  -                 }, the complete:function () { -                 } -});
This enables AJAX access to the WebService interface.



Ajax calls WebService resolve cross-domain and post-to-server local calls successful external network failure issues