客户端没有从ApiController接收自定义HttpResponseException

时间:2015-07-16 08:05:44

标签: c# .net asp.net-mvc asp.net-web-api

我已经为我的Web API控制器操作创建了一个异常过滤器,但它似乎没有做任何事情(即使它被调用了)。

属性

public class ExceptionHandlerAttribute : ExceptionFilterAttribute
{
    public override void OnException(HttpActionExecutedContext context)
    {
        context.Response = new HttpResponseMessage(HttpStatusCode.BadRequest);
        context.Response.Content = new StringContent("My content");
        context.Response.ReasonPhrase = "My reason";
    }
}

我也尝试过:

public override void OnException(HttpActionExecutedContext context)
{
    throw new HttpResponseException(
        new HttpResponseMessage(HttpStatusCode.BadRequest)
        {
            Content = new StringContent("The content"),
            ReasonPhrase = "The reason"
        });
}

控制器

[ExceptionHandler]
public class MyController : ApiController
{
    [Route("MyRoute"), HttpGet]
    public MyModel Index() {
        // code causing exception
    }
}

WebApiConfig

public static class WebApiConfig
{
    public static void Register(HttpConfiguration config)
    {
        config.Filters.Add(new ExceptionHandlerAttribute());
    }
}

但是,当发生异常时,客户端会收到:

Exception Message

2 个答案:

答案 0 :(得分:1)

您需要使用异常过滤器的响应抛出HttpResponseException

public override void OnException(HttpActionExecutedContext context)
{
    throw new HttpResponseException(
        new HttpResponseMessage(HttpStatusCode.BadRequest)
        {
            Content = new StringContent("The content"),
            ReasonPhrase = "The reason"
        });
}

以下是how to handle exceptions in Web API的详细信息。

答案 1 :(得分:1)

您的API端代码没问题。但获得响应应该是这样的(使用WebException捕获):

oForm.elements[index of element].value;