Protobuf-net涉水记录

背景：知道了Protobuf在C#控制台的用法之后兴高采烈的要弄到Unity去，然后发现Unity5还是只支持到.net 3.5，东找找西找找，有人说用Protobuf-net，有人说也可以用Protobuf-csharp-port，选了Protobuf-net来试试

Protobu-net

1.VS 2017 创建.net3.5的dll工程， Nuget 打包protobuf-net成dll放到Unity工程的Plugins目录

2.创建Protobuf

    // 
    [ProtoContract]
    class Person {
        [ProtoMember(1)]
        public int Id {get;set;}
        [ProtoMember(2)]
        public string Name {get;set;}
        [ProtoMember(3)]
        public Address Address {get;set;}
    }
    [ProtoContract]
    class Address {
        [ProtoMember(1)]
        public string Line1 {get;set;}
        [ProtoMember(2)]
        public string Line2 {get;set;}
    }

3.序列化Protobuf对象

    // 利用FileStream作为序列化的载体，会创建本地文件
    using (var file = File.Create("person.bin")) {
        Serializer.Serialize(file, person);
    }

    // 利用MemoryStream作为序列化的载体，转化为byte数组
    using (MemoryStream stream = new MemoryStream()){
        ProtoBuf.Serializer.Serialize(stream,my);
        byte[] result = new byte[stream.Length];
        stream.Position = 0;
        stream.Read(result,0,result.Length);
        stream.Close();
        return result;
    }

4.反序列化Protobuf对象

    // 使用FileStream作为反序列化的载体，转换为Protobuf对象
    using (var file = File.OpenRead("person.bin")) {
        newPerson = Serializer.Deserialize<Person>(file);
    }
    
    // 使用MemoryStream作为反序列化载体，转化为Protobuf对象
    using(MemoryStream stream = new MemoryStream()){
        stream.Write(info,0,info.Length);
        stream.Position = 0;
        Hello hello =ProtoBuf.Serializer.Deserialize<Hello>(stream);
        stream.Close();
    }