序列化和反序列化 HttpRequestMessage 对象

有人有序列化 HttpRequestMessage 对象的经验吗？尝试使用 Json.net，它部分有效。也就是说，JsonConvert.DeserializeObject 由于 StringContent 构造问题而失败：“无法找到用于类型 System.Net.Http.StringContent 的构造函数”。

简而言之，这里的用例是我想保存网络请求并稍后发出，以防出现临时网络问题或服务不可用等情况。

失败的示例代码：

var request = new HttpRequestMessage(HttpMethod.POST, "http://www.something.com");
request.Headers.Date = DateTimeOffset.UtcNow;
request.Headers.AcceptLanguage.Add(new System.Net.Http.Headers.StringWithQualityHeaderValue("en-US"));
request.Content = new StringContent("Hello World!");
request.Content.Headers.Add("x-some", "thing");                       

var result = JsonConvert.SerializeObject(request, new JsonSerializerSettings
{
    TypeNameHandling = TypeNameHandling.Objects,
    TypeNameAssemblyFormat = System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Full
});

var deserializeRequest = JsonConvert.DeserializeObject<HttpRequestMessage>(result, new JsonSerializerSettings
{
    TypeNameHandling = TypeNameHandling.Objects
}); 

可以使用以下示例代码序列化/反序列化 HttpRequest 的相关部分。

var request = new HttpRequestMessage(HttpMethod.Post, "http://www.something.com");
request.Content = new StringContent("Hello World!");

var serializedRequestByteArray = new HttpMessageContent(request).ReadAsByteArrayAsync().Result;

var tmpRequest = new HttpRequestMessage();
tmpRequest.Content = new ByteArrayContent(serializedRequestByteArray);
tmpRequest.Content.Headers.Add("Content-Type", "application/http;msgtype=request");

var deserializedRequest = tmpRequest.Content.ReadAsHttpRequestMessageAsync().Result;