当通过AJAX进行后,错误的请求返回,而不是JSON结果 [英] When performing post via ajax, Bad Request is returned instead of the JSON result
问题描述
jqXHR = $.ajax({ url: $frm.attr("action"), type: "POST", dataType: "json", cache: false,
headers: headers, contentType: "application/json;charset=UTF-8", data: ko.mapping.toJSON(data, map),
beforeSend: function(x) {
if (x && x.overrideMimeType) {
return x.overrideMimeType("application/json;charset=UTF-8");
}
}
});
jqXHR.fail(function(xhr, err, msg) { /* xhr.responseText NEED TO BE JSON!!! */ });
在Chrome浏览器
标题
Request Method:POST
Status Code:400 Bad Request
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Accept-Encoding:gzip,deflate,sdch
Accept-Language:en-US,en;q=0.8,pt-BR;q=0.6,pt;q=0.4
Connection:keep-alive
Content-Length:10
Content-Type:application/json;charset=UTF-8
User-Agent:Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.117 Safari/537.36
X-Requested-With:XMLHttpRequest
Request Payloadview source {Id:0}
Response Headersview source
Cache-Control:private
Content-Length:54
Content-Type:application/json; charset=utf-8
Date:Thu, 27 Feb 2014 14:01:59 GMT
Server:Microsoft-IIS/8.0
X-AspNet-Version:4.0.30319
X-AspNetMvc-Version:5.1
X-Powered-By:ASP.NET
响应
[{姓名:诺姆,的ErrorMessage:坎普obrigatório}]
[{"Name":"Nome","ErrorMessage":"campo obrigatório."}]
工作在chrome!
头(请求)
POST /Motivos/Salvar HTTP/1.1
Accept: application/json, text/javascript, */*; q=0.01
Accept-Language: pt-br
x-requested-with: XMLHttpRequest
Content-Type: application/json;charset=UTF-8
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0)
Content-Length: 10
Connection: Keep-Alive
Pragma: no-cache
头(响应)
HTTP/1.1 400 Bad Request
Cache-Control: private
Content-Type: text/html
Server: Microsoft-IIS/8.0
X-AspNetMvc-Version: 5.1
X-AspNet-Version: 4.0.30319
X-Powered-By: ASP.NET
Date: Thu, 27 Feb 2014 13:51:46 GMT
Content-Length: 11
Bad Request
不行的!!
public class HandleExceptionAttribute : HandleErrorAttribute
{
public override void OnException(ExceptionContext filterContext)
{
if (filterContext.HttpContext.Request.IsAjaxRequest() && filterContext.Exception != null)
{
filterContext.HttpContext.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
var ex = filterContext.Exception.GetBaseException();
filterContext.Result = new JsonResult
{
JsonRequestBehavior = JsonRequestBehavior.AllowGet,
Data = new
{
ex.Message,
ex.GetType().Name
}
};
filterContext.ExceptionHandled = true;
}
else
{
base.OnException(filterContext);
}
}
}
应用上GlobalFilterCollection
[ValidateJsonAntiForgeryToken, HttpPost]
public virtual JsonResult Salvar(TViewModel viewModel)
{
if (ModelState.IsValid)
{
TEntity model;
if (default(TKey).Equals(viewModel.Id))
{
model = Mapper.Map<TEntity>(viewModel);
AdicionarEntidade(model, viewModel);
}
else
{
model = Repositorio.Get(viewModel.Id);
Mapper.Map(viewModel, model, typeof(TViewModel), typeof(TEntity));
SalvarEntidade(model, viewModel);
}
return SalvarResult(model);
}
Response.StatusCode = 400;
return Json(ModelState.ToJson(), JsonRequestBehavior.AllowGet);
}
Extenssion
public static object ToJson(this ModelStateDictionary dic, params string[] othersMessages)
{
var states = (from e in dic where e.Value.Errors.Count > 0
select new { Name = e.Key, e.Value.Errors[0].ErrorMessage }).ToList();
if (othersMessages != null)
foreach (var message in othersMessages)
states.Add(new { Name = "", ErrorMessage = message });
return states;
}
问题
- 为什么没有xhr.resposeText对象?
- 如何检索JSON在我收回Chrome浏览器以同样的方式?
- Why not have the xhr.resposeText object?
- How to retrieve JSON in the same way that I recover in Chrome?
Questions
我需要JSON来填充表格!
I need the JSON to populate the form!
当我加入 Response.TrySkipIisCustomErrors = TRUE;
在我CONTROLER,它的作品!
的responseText返回JSON。
为什么呢?
When I add Response.TrySkipIisCustomErrors = true;
in my controler, it works!
responseText returns the json.
Why?
推荐答案
认为这是一个问题,IIS尝试使用自定义的错误响应而发送的错误消息控制器产生。
Think this is an issue with IIS trying to use custom error response rather sending the error message that the controller is generating.
<system.webServer>
...
<httpErrors existingResponse="PassThrough"></httpErrors>
...
</system.webServer>
或
Response.TrySkipIisCustomErrors = true;
参考 - http://stackoverflow.com/a/4029197/1304559
看看这个博客帖子<一href="http://weblog.west-wind.com/posts/2009/Apr/29/IIS-7-Error-Pages-taking-over-500-Errors">http://weblog.west-wind.com/posts/2009/Apr/29/IIS-7-Error-Pages-taking-over-500-Errors
由于响应code设置为400,IIS替换您的内容与它的自定义错误页的内容
Since response code is set to 400, IIS replaces your content with its custom error page content
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