c# - 为什么详细的错误信息没有传递给 HttpClient？

Question

我使用的是自动生成的默认 Web Api Controller 。我正在客户端测试验证和错误处理。但不知何故，我意识到详细错误消息没有传递给客户端。如果我在这两种情况下都抛出 HttpResponseException 或返回 IHttpActionResult，客户端只会看到“错误请求”而不是详细消息。谁能解释一下出了什么问题？

     public IHttpActionResult Delete(int id)
    {
        if (id <= 0)
        {
            var response = new HttpResponseMessage(HttpStatusCode.NotFound)
            {
                Content = new StringContent("Id should be greater than zero.", System.Text.Encoding.UTF8, "text/plain"),
                StatusCode = HttpStatusCode.NotFound

            };
            throw new HttpResponseException(response) // Either this way
        }

        var itemToDelete = (from i in Values
                            where i.Id == id
                            select i).SingleOrDefault();

        if (itemToDelete == null)
        {
            return BadRequest(string.Format("Unable to find a value for the Id {0}", id)); // Or This way
        }

        Values.Remove(itemToDelete);
        return Ok();
    }

客户端代码为:

 private async static Task DeleteValue(int id)
    {

        var url = "http://localhost:13628/api/Values/" + id;
        using (var client = new HttpClient())
        {
            var response = await client.DeleteAsync(url);
            if (response.IsSuccessStatusCode)
            {
                await ReadValues();
            }
            else
            {
                Console.WriteLine(response.ReasonPhrase);
                Console.WriteLine(response.StatusCode);
            }
        }
    }

以上都不行？？

谢谢

Answer 1

在您的客户端更改 Console.WriteLine(response.ReasonPhrase);
至 Console.WriteLine(response.Content.ReadAsStringAsync().Result);
它会给出详细的错误信息。