System.Net.HTTP.HttpRequestException将内容复制到流时出错

Question

using (var httpClient = new HttpClient())
{
    httpClient.DefaultRequestHeaders.Authorization = authorizationHeader;
    HttpContent httpContent = new StringContent(someXml);

    //Exception occurs on next line...
    var response = await httpClient.PostAsync("https://thirdpartyendpoint", httpContent);
    var responseXml = await response.Content.ReadAsStringAsync();  
    //convert to Dto              
}

Answer 1

我们通过2个代码更改解决了此问题：

>

放弃httpResponseMessage，只使用一个简单的DTO

using (var httpResponseMessage = await httpClient.SendAsync(httpRequestMessage))
{
    return await CreateDto(httpResponseMessage);
}

将HTTP版本降级到V1.0

var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, new Uri(url))
{
    Version = HttpVersion.Version10,
    Content = httpContent
};

await client.SendAsync(httpRequestMessage);

Connection: close 

Connection: keep-alive