ASP.NET開發web應用過程中遇到的javascript跨域請求問題

解決方案

不提倡跨域的post請求。

0.jquery中ajax的跨域方案jsonp

.ashx代碼

using System; using System.Collections.Generic; using System.Linq; using System.Web;      namespace KB.DSN.Web.API.Tokens {     /// <summary>     /// Summary description for Get     /// </summary>     public class Get : IHttpHandler     {                   public void ProcessRequest(HttpContext context)         {             setresponsecontext(context);             var token = KB.DSN.BusinessAccess.UniqueCommunicationCode.GenerateUniqueCommunicationCode();                  var outputobject = new            {                 Head = new Models.KBJsonHeadResponse(),                 Body = new { Token = token }             };                  var outputjsonstring = Newtonsoft.Json.JsonConvert.SerializeObject(outputobject);                                   context.Response.Write(context.Request.QueryString["callback"]+"("+outputjsonstring+")");              }              private void setresponsecontext(HttpContext context)         {                             context.Response.ContentEncoding = System.Text.Encoding.UTF8;             context.Response.ContentType = "application/json";         }              public bool IsReusable         {             get             {                 return false;             }         }     } }

html頁面

function getToken_jsonp(){         $.ajax({            url: "http://192.168.0.111/api/tokens/get.ashx",           type: "get",      dataType: "jsonp",     jsonp: "callback",     async: false,                    contentType: "application/json",           success: function(data){       //alert("getToken success");             $("#token").text($.toJSON(data));             //console.log(data);                      },     error:function(){         alert("getToken fail");     }         });            }