ajax不会成功

ajax不会成功

问题描述:

我试图从我的webapi服务器获取数据。调试显示ajax不会成功

GET http://localhost:62578/api/DB [HTTP/1.1 200 OK 2ms] 

但我不打成功,而是我打错误,没有数据传递到错误的功能?

var records; 
var loadedData = new Array(); 

$.ajax({ 
    type: 'GET', 
    dataType: 'json', 
    accept: "application/json", 
    url: 'http://localhost:62578/api/DB', 
    //data: { a:'a' }, 
    // contentType: 'application/json; charset=utf-8', 
    success: function(data) { 
    //I never get here. 
     $.each(data, function (key, val) {//key is the row number, val is the object data below 
       $.each(val, function (key2, val2) {//key2 is the array element name, val2 is the data. 
        if (key == 0) loadedData.push(key2); //we only need one row of collumns 
       }); 
       records = key; 
       init(loadedData); 
       }); 
      }, 
      error: function(jqXHR, exception) { 
      //both return undefined. 
     } 
     }); 

webapi服务器日志。

jttp = HTTP FYI(愚蠢的堆栈溢出)

iisexpress.exe Information: 0 : Request, Method=GET, Url=jttp://localhost:62578/api/DB, Message='jttp://localhost:62578/api/DB' 
iisexpress.exe Information: 0 : Message='DB', Operation=DefaultHttpControllerSelector.SelectController 
iisexpress.exe Information: 0 : Message='MvcApplication1.Controllers.DBController', Operation=DefaultHttpControllerActivator.Create 
iisexpress.exe Information: 0 : Message='MvcApplication1.Controllers.DBController', Operation=HttpControllerDescriptor.CreateController 
iisexpress.exe Information: 0 : Message='Selected action 'GetAllProducts()'', Operation=ApiControllerActionSelector.SelectAction 
iisexpress.exe Information: 0 : Operation=HttpActionBinding.ExecuteBindingAsync 
iisexpress.exe Information: 0 : Message='Action returned 'MvcApplication1.Models.DataBase[]'', Operation=ReflectedHttpActionDescriptor.ExecuteAsync 
iisexpress.exe Information: 0 : Message='Will use same 'JsonMediaTypeFormatter' formatter', Operation=JsonMediaTypeFormatter.GetPerRequestFormatterInstance 
iisexpress.exe Information: 0 : Message='Selected formatter='JsonMediaTypeFormatter', content-type='application/json; charset=utf-8'', Operation=DefaultContentNegotiator.Negotiate 
iisexpress.exe Information: 0 : Operation=ApiControllerActionInvoker.InvokeActionAsync, Status=200 (OK) 
iisexpress.exe Information: 0 : Operation=DBController.ExecuteAsync, Status=200 (OK) 
iisexpress.exe Information: 0 : Response, Status=200 (OK), Method=GET, Url=jttp://localhost:62578/api/DB, Message='Content-type='application/json; charset=utf-8', content-length=unknown' 
iisexpress.exe Information: 0 : Operation=JsonMediaTypeFormatter.WriteToStreamAsync 
iisexpress.exe Information: 0 : Operation=DBController.Dispose 
+0

你使用本地主机还是只是一个'localhost:62578/api/DB'的例子?请确保添加'http://' – Aboodred1 2013-03-12 19:03:36

+0

jqXHR.status为0, jqXHR.responseText未定义, 异常未定义 – user2144480 2013-03-12 19:05:12

+0

*不停地唠叨我把http放在我的文章中,它不会让我继续使用http“\” \在那里。 – user2144480 2013-03-12 19:06:14

我觉得你的JavaScript代码位于不同的端口上;也许端口80,你的json请求位于端口62578. Ajax请求只允许在同一个域,协议和端口。

为了解决您的问题,您需要使用JSONP数据类型或任何其他类似的机制(服务器端解决方案)。

结帐wikipedia了解更多关于JSONP的信息。

签出此example关于如何使用JSONP与jQuery ajax调用。

结账*对于类似的问题。

+1

啊好的Aboodred1,我跟着你。 – user2144480 2013-03-15 13:52:37