c++ - 如何使用rapidjson(实现序列化)将对象序列化为std::string？

Question

如何使用rapidjson将对象序列化为std::string？我已经实现了

class Person{
public:
    std::string name;
    uint64 id; // uint64 is typedef

    template <typename Writer>
    void Serialize(Writer& writer) const {
        writer.StartObject();
        writer.String("name");
        writer.String(name);
        writer.String(("id"));
        writer.Uint64(id);
        writer.EndObject();
    }
     std::string serialize(){
        FileStream s(stdout);
        PrettyWriter<FileStream> writer(s);   
        Serialize(writer);
        return  ? /// There is a problem

    }
}

问题是序列化函数返回什么？

Answer 1

问题已经很老了，如果您仍在寻找答案，那么这是 @Lightness Races in Orbit 建议的答案

class Person{
public:
    std::string name;
    uint64 id; // uint64 is typedef

    template <typename Writer>
    void Serialize(Writer& writer) const {
        writer.StartObject();
        writer.String("name");
        writer.String(name);
        writer.String(("id"));
        writer.Uint64(id);
        writer.EndObject();
    }
     std::string serialize(){
        StringBuffer s;
        Writer<StringBuffer> writer(s);
        Serialize(writer);
        return  s.GetString();
    }
}

您还可以在此处查看示例代码:simplewriter.cpp