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<string,string> hugeObject = new Dictionary<string,string>();
// 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");
哪个适用于较小的物体.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what’s described here for deserialization.
最佳答案 您可以尝试使用
PushStreamContent
并使用
JsonTextWriter
写入:
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");