0

给定这样的异常过滤器。

    public override void OnException(HttpActionExecutedContext context)
    {
        var resp = new HttpResponseMessage(HttpStatusCode.InternalServerError)
        {
            // what must I change here to return an object
            // similar to the default exception handler?
            Content = new StringContent("THIS IS MY ERROR"),
        };
        throw new HttpResponseException(resp);
    }

返回给客户端 javascript的异常原因是一个纯字符串。

当在默认 WebApi2控制器中抛出异常时，返回的默认原因对象包含配置、数据、标头等。我找不到如何从我的异常过滤器返回所有这些额外信息的示例。我尝试检查源无济于事...

在此处输入图像描述

 $http.get('/mydata')
     .catch(function(reason) { ... do stuff with reason })
     .then(...);

我需要更改什么才能返回相同的默认响应，而不仅仅是一个纯字符串。

Content = new ... // what goes here.
4

3 回答 3

0

您没有收到错误消息的原因是您的 HttpResponseMessage 不包含它。
所以你需要将它添加到响应对象

    公共覆盖无效 OnException（HttpActionExecutedContext 上下文）
        {
            if (context.Exception is NotImplementedException)
            {
                context.Response = new HttpResponseMessage(HttpStatusCode.NotImplemented);
            }
        }

在你的行动中，你抛出 NotImplementedException Exception

[NotImplExceptionFilter]
    公共联系人GetContact（int id）
    {
        throw new NotImplementedException("该方法未实现");
    }

希望能帮助到你。

于 2016-07-02T11:40:23.100 回答
0

给其他有这个特殊问题的人。

public override void OnException(HttpActionExecutedContext context)
{
    var exception = context.Exception as DbEntityValidationException;
    if (exception == null)
        return;

    var errors = exception.EntityValidationErrors.SelectMany(_ => _.ValidationErrors);
    var messages = errors.Select(_ => Culture.Current($"{_.PropertyName}:{_.ErrorMessage}"));
    var message = Culture.Current($"{context.Exception.Message}<br/>{string.Join("<br/>", messages)}");

    // create an error response containing all the required detail...
    var response = context.Request.CreateErrorResponse(
         HttpStatusCode.InternalServerError,
         message,
         exception);
    throw new HttpResponseException(response);
}
于 2016-07-03T06:07:10.267 回答
0 
public override void OnException(HttpActionExecutedContext context)
    {
        if (context.Exception is NotSupportedException)
        {
            context.Response = context.Request.CreateErrorResponse(HttpStatusCode.BadRequest,
                JsonConvert.SerializeObject(new[] {context.Exception.Message}));
            return;
        }

        string exceptionMessage = null;
        // Validation Related Errors
        if (context.Exception is DbEntityValidationException)
        {
            var typedEx = context.Exception as DbEntityValidationException;
            if (typedEx == null)
                return;
            var errorMessages = typedEx.EntityValidationErrors
                .SelectMany(x => x.ValidationErrors)
                .Select(x => x.ErrorMessage);
            var fullErrorMessage = string.Join("; ", errorMessages);
            exceptionMessage = string.Concat(typedEx.Message, " The validation errors are: ", fullErrorMessage);
        }
        // All Global Exceptions
        var innerException = context.Exception.GetBaseException();
        throw new HttpResponseException(new HttpResponseMessage(HttpStatusCode.InternalServerError)
        {
            Content = new StringContent(JsonConvert.SerializeObject(new
            {
                Data = new
                {
                    IsSuccess = false,
                    StatusCode = 45000,
                    ErrorMessage = exceptionMessage ??
                                   $"{innerException.Message} StackTrace : {innerException.StackTrace}"
                }
            })),
            ReasonPhrase = "Deadly Exception!"
        });
    }

异常过滤器的工作示例。

于 2019-11-17T08:03:20.477 回答