如何使用字符串而不是流

Question

我需要使用这个:

http://www.newtonsoft.com/json/help/html/SerializeToBson.htm

这是将对象转换为BSON格式的代码。我感兴趣的代码是:

System.IO.MemoryStream stream = new System.IO.MemoryStream();
using (Newtonsoft.Json.Bson.BsonWriter writer = new Newtonsoft.Json.Bson.BsonWriter(stream))
{
    Newtonsoft.Json.JsonSerializer serializer = new Newtonsoft.Json.JsonSerializer();
    serializer.Serialize(writer, message);
}

但是，我希望结果是字符串。那么，我真的必须使用流或文件来写入内容，然后读取它以将其放入字符串中吗?

一定有更好的方法来做这件事吗?

Answer 1

您可以使用StreamReader.ReadToEnd():

从流中获取字符串

        string bsonText = "";
        using(MemoryStream stream = new MemoryStream())
        using(StreamReader reader = new StreamReader(stream))
        using (BsonWriter writer = new Newtonsoft.Json.Bson.BsonWriter(stream))
        {
            JsonSerializer serializer = new JsonSerializer();
            serializer.Serialize(writer, message);
            stream.Position = 0;
            bsonText = reader.ReadToEnd();
        }

或者，Encoding.UTF8.GetString():

        using(MemoryStream stream = new MemoryStream())
        using (BsonWriter writer = new Newtonsoft.Json.Bson.BsonWriter(stream))
        {
            JsonSerializer serializer = new JsonSerializer();
            serializer.Serialize(writer, message);
            bsonText = Encoding.UTF8.GetString(stream.ToArray());
        }

谁知道你会从这里得到什么，因为BSON是一个二进制对象表示，它不像JSON!