关于jquery：ASP.NET MVC Ajax错误处理

ASP.NET MVC Ajax Error handling

当jqueryajax调用一个操作时，如何处理控制器中抛出的异常？

例如，我希望在Ajax调用期间，在任何类型的服务器异常上执行一个全局javascript代码，如果处于调试模式或只是一个正常的错误消息，则该代码将显示异常消息。

在客户端，我将调用Ajax错误的函数。

在服务器端，我需要编写一个自定义的actionfilter吗？

if the some different末地位比队列服务器200，the error is executed：回调P＞＜／

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$.ajax({
url: '/foo',
success: function(result) {
alert('yeap');
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert('oops, something bad happened');
}
});

在全球注册和误差处理的方法：你可以用the $.ajaxSetup()P＞＜／

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$.ajaxSetup({
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert('oops, something bad happened');
}
});

is to another方式使用JSON。我知道你可以写在custom action on the filter的数据库服务器transforms into them which渔获量和JSON响应：P＞＜／

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public class MyErrorHandlerAttribute : FilterAttribute, IExceptionFilter
{
public void OnException(ExceptionContext filterContext)
{
filterContext.ExceptionHandled = true;
filterContext.Result = new JsonResult
{
Data = new { success = false, error = filterContext.Exception.ToString() },
JsonRequestBehavior = JsonRequestBehavior.AllowGet
};
}
}

然后，装饰你的控制器action with this属性：P＞＜／

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[MyErrorHandler]
public ActionResult Foo(string id)
{
if (string.IsNullOrEmpty(id))
{
throw new Exception("oh no");
}
return Json(new { success = true });
}

最后invoke恩：布尔P＞＜／

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$.getJSON('/home/foo', { id: null }, function (result) {
if (!result.success) {
alert(result.error);
} else {
// handle the success
}
});

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googling后写的简单数据库：基于MVC的行动handing filterP＞＜／

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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;
filterContext.Result = new JsonResult
{
JsonRequestBehavior = JsonRequestBehavior.AllowGet,
Data = new
{
filterContext.Exception.Message,
filterContext.Exception.StackTrace
}
};
filterContext.ExceptionHandled = true;
}
else
{
base.OnException(filterContext);
}
}
}

在global.ascx和写入：P＞＜／

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public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
filters.Add(new HandleExceptionAttribute());
}

然后我写这个脚本：on the页面布局或硕士学位P＞＜／

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最后，你应该把custom error)。然后享受它：)P＞＜／

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不幸的是他/她are of answers，曼弗雷迪或法拉利吗我很好。surprisingly the solution is多简单的内部。返回从控制器：P＞＜／

1	return new HttpStatusCodeResult(HttpStatusCode.BadRequest, e.Response.ReasonPhrase);

AS和EN标准误差的在线处理HTTP客户端作为你喜欢。P＞＜／

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在协议与S反应在aleho' example是完整的。它的魅力和作品像是超级简单。P＞＜／

队列控制器P＞＜／

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[HttpGet]
public async Task<ActionResult> ChildItems()
{
var client = TranslationDataHttpClient.GetClient();
HttpResponseMessage response = await client.GetAsync("childItems);

if (response.IsSuccessStatusCode)
{
string content = response.Content.ReadAsStringAsync().Result;
List<WorkflowItem> parameters = JsonConvert.DeserializeObject<List<WorkflowItem>>(content);
return Json(content, JsonRequestBehavior.AllowGet);
}
else
{
return new HttpStatusCodeResult(response.StatusCode, response.ReasonPhrase);
}
}
}

在JavaScript代码视图P＞＜／

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希望这helps人*！P＞＜／

我在我的快速解决方案，因为它好和加工时间短。尽管我认为更好的选择是使用安the filter可以例外，也许我的解决方案，帮助在茶馆solution is needed无知。P＞＜／

我下面。在控制器的方法在jsonresult returned the property"的成功与"inside the日期：P＞＜／

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[HttpPut]
public JsonResult UpdateEmployeeConfig(EmployeConfig employeToSave)
{
if (!ModelState.IsValid)
{
return new JsonResult
{
Data = new { ErrorMessage ="Model is not valid", Success = false },
ContentEncoding = System.Text.Encoding.UTF8,
JsonRequestBehavior = JsonRequestBehavior.DenyGet
};
}
try
{
MyDbContext db = new MyDbContext();

db.Entry(employeToSave).State = EntityState.Modified;
db.SaveChanges();

DTO.EmployeConfig user = (DTO.EmployeConfig)Session["EmployeLoggin"];

if (employeToSave.Id == user.Id)
{
user.Company = employeToSave.Company;
user.Language = employeToSave.Language;
user.Money = employeToSave.Money;
user.CostCenter = employeToSave.CostCenter;

Session["EmployeLoggin"] = user;
}
}
catch (Exception ex)
{
return new JsonResult
{
Data = new { ErrorMessage = ex.Message, Success = false },
ContentEncoding = System.Text.Encoding.UTF8,
JsonRequestBehavior = JsonRequestBehavior.DenyGet
};
}

return new JsonResult() { Data = new { Success = true }, };
}

以后我要呼叫在Ajax for this property知道如果我安的例外：P＞＜／

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$.ajax({
url: 'UpdateEmployeeConfig',
type: 'PUT',
data: JSON.stringify(EmployeConfig),
contentType:"application/json;charset=utf-8",
success: function (data) {
if (data.Success) {
//This is for the example. Please do something prettier for the user, :)
alert('All was really ok');
}
else {
alert('Oups.. we had errors: ' + data.ErrorMessage);
}
},
error: function (request, status, error) {
alert('oh, errors here. The call to the server is not working.')
}
});

本helps希望。快乐尾巴！：PP＞＜／

为处理从客户端Ajax on the errors在侧，在你assign erroroption to the function of the ajax呼叫。P＞＜／

在默认设置globally to the function，你可以使用这里描述的程序办理：api.jquery.com http：/ / / jquery.ajaxsetup。P＞＜／

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