如何将大型JSON对象直接序列化为HttpResponseMessage流？

有没有办法将大型JSON对象直接流式传输到HttpResponseMessage流？

这是我现有的代码：

Dictionary hugeObject = new Dictionary(); // fill with 100,000 key/values. Each string is 32 chars. HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK); response.Content = new StringContent( content: JsonConvert.SerializeObject(hugeObject), encoding: Encoding.UTF8, mediaType: "application/json"); 

适用于较小的物体。 但是，调用JsonConvert.SerializeObject（）将对象转换为字符串的过程会导致大对象出现有问题的内存峰值。

我想做相当于这里描述的反序列化 。

Answer 1

您可以尝试使用PushStreamContent并使用PushStreamContent写入它：

 HttpResponseMessage response = new HttpResponseMessage(HttpStatusCode.OK); response.Content = new PushStreamContent((stream, content, context) => { using (StreamWriter sw = new StreamWriter(stream, Encoding.UTF8)) using (JsonTextWriter jtw = new JsonTextWriter(sw)) { JsonSerializer ser = new JsonSerializer(); ser.Serialize(jtw, hugeObject); } }, "application/json");