Web Api - 不允许捕获 405 方法 [英] Web Api - Catch 405 Method Not Allowed

问题描述

截至目前，Web api 应用程序为 405 - Method Not Allowed 错误返回以下响应正文.我正在尝试更改响应正文，但我不知道如何使用委托处理程序、ApiControllerActionSelector 或过滤器.任何人都可以帮助我捕获服务器端的 405 错误吗?

As of now, the Web api application returns the below response body for 405 - Method Not Allowed error. I am trying to change the response body, but I don't know how the delegating handler, ApiControllerActionSelector or filter can be used. Can anyone help me on catching the 405 error in server side?

<代码>{消息:请求的资源不支持 http 方法‘GET’."}

注意:我的 api 控制器有 [RoutePrefix] 值.

Note: My api controllers has [RoutePrefix] value.

推荐答案

您可以使用 DelegatingHandler 来捕获传出的响应并像这样覆盖其行为.

You could use a DelegatingHandler to catch the outgoing response and override its behaviour like this.

public class MethodNotAllowedDelegatingHandler : DelegatingHandler
{
    async protected override Task<HttpResponseMessage> SendAsync(
            HttpRequestMessage request, CancellationToken cancellationToken)
    {
        HttpResponseMessage response = await base.SendAsync(request, cancellationToken);
        if (response.StatusCode == HttpStatusCode.MethodNotAllowed)
        {
            // adjust your response here as needed...
        }
        return response;
    }
}

在 Global.asax...

In Global.asax...

config.MessageHandlers.Add(new MethodNotAllowedDelegatingHandler());

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