標籤:base log efault formatter test ret value 設定 type
C# protobuf的使用方法
簡介
Protobuf是google提供的一個開源序列化架構,類似於XML,JSON這樣的資料表示語言。
支援多種程式設計語言,現:Java、c#、c++、Go 和 Python。
基於二進位,因此比傳統的XML表示高效短小得多
作為一種效率和相容性都很優秀的位元據傳輸格式,可以用於諸如網路傳輸、設定檔、資料存放區等諸多領域。
使用
1、:http://code.google.com/p/protobuf/downloads/2、proto檔案格式
package 對應於c#中的命名空間
required 對應類的屬性
optional 建立一個具有預設值的屬性,通過[default=XXX]設定預設值,不添加預設為空白置。如string預設為“”,int預設為0
enum 建立枚舉
message 建立自訂類或內部類
repeated 對應list列表資料
proto資料類型:
樣本:
package test;message Person { required string name=1; required int32 id=2; optional string email=3 ; enum PhoneType { MOBILE=0; HOME=1; WORK=2; } message PhoneNumber { required string number=1; optional PhoneType type=2 [default=HOME]; } repeated PhoneNumber phone=4;}
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proto檔案編輯的命令:
protogen -i:input.proto -o:output.cs
protogen -i:input.proto -o:output.xml -t:xml
protogen -i:input.proto -o:output.cs -p:datacontract -q
protogen -i:input.proto -o:output.cs -p:observable=true
轉換之後的檔案:
//------------------------------------------------------------------------------// <auto-generated>// This code was generated by a tool.//// Changes to this file may cause incorrect behavior and will be lost if// the code is regenerated.// </auto-generated>//------------------------------------------------------------------------------// Generated from: input/test.protonamespace input.test{ [global::System.Serializable, global::ProtoBuf.ProtoContract(Name=@"Person")] public partial class Person : global::ProtoBuf.IExtensible { public Person() {} private string _name; [global::ProtoBuf.ProtoMember(1, IsRequired = true, Name=@"name", DataFormat = global::ProtoBuf.DataFormat.Default)] public string name { get { return _name; } set { _name = value; } } private int _id; [global::ProtoBuf.ProtoMember(2, IsRequired = true, Name=@"id", DataFormat = global::ProtoBuf.DataFormat.TwosComplement)] public int id { get { return _id; } set { _id = value; } } private string _email = ""; [global::ProtoBuf.ProtoMember(3, IsRequired = false, Name=@"email", DataFormat = global::ProtoBuf.DataFormat.Default)] [global::System.ComponentModel.DefaultValue("")] public string email { get { return _email; } set { _email = value; } } private readonly global::System.Collections.Generic.List<Person.PhoneNumber> _phone = new global::System.Collections.Generic.List<Person.PhoneNumber>(); [global::ProtoBuf.ProtoMember(4, Name=@"phone", DataFormat = global::ProtoBuf.DataFormat.Default)] public global::System.Collections.Generic.List<Person.PhoneNumber> phone { get { return _phone; } } [global::System.Serializable, global::ProtoBuf.ProtoContract(Name=@"PhoneNumber")] public partial class PhoneNumber : global::ProtoBuf.IExtensible { public PhoneNumber() {} private string _number; [global::ProtoBuf.ProtoMember(1, IsRequired = true, Name=@"number", DataFormat = global::ProtoBuf.DataFormat.Default)] public string number { get { return _number; } set { _number = value; } } private Person.PhoneType _type = Person.PhoneType.HOME; [global::ProtoBuf.ProtoMember(2, IsRequired = false, Name=@"type", DataFormat = global::ProtoBuf.DataFormat.TwosComplement)] [global::System.ComponentModel.DefaultValue(Person.PhoneType.HOME)] public Person.PhoneType type { get { return _type; } set { _type = value; } } private global::ProtoBuf.IExtension extensionObject; global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject(bool createIfMissing) { return global::ProtoBuf.Extensible.GetExtensionObject(ref extensionObject, createIfMissing); } } [global::ProtoBuf.ProtoContract(Name=@"PhoneType")] public enum PhoneType { [global::ProtoBuf.ProtoEnum(Name=@"MOBILE", Value=0)] MOBILE = 0, [global::ProtoBuf.ProtoEnum(Name=@"HOME", Value=1)] HOME = 1, [global::ProtoBuf.ProtoEnum(Name=@"WORK", Value=2)] WORK = 2 } private global::ProtoBuf.IExtension extensionObject; global::ProtoBuf.IExtension global::ProtoBuf.IExtensible.GetExtensionObject(bool createIfMissing) { return global::ProtoBuf.Extensible.GetExtensionObject(ref extensionObject, createIfMissing); } }}
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3、proto轉化後的.cs檔案的序列化和還原序列化
首先,將產生的.cs檔案複製到自己的專案檔中
然後添加動態連結程式庫檔案protobuf-net.dll(該檔案位於下載的proto檔案的protobuf-net_r668\ProtoGen目錄下)
然後在程式中引用,相關程式如下:
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using ProtoBuf;using input.test;using System.IO;using System.Runtime.Serialization.Formatters.Binary;namespace test1{ class Program { static void Main(string[] args) { Person p = new Person(); p.name = "zhang san"; p.email = "[email protected]"; p.id = 12; //序列化操作 MemoryStream ms=new MemoryStream(); //BinaryFormatter bm = new BinaryFormatter(); //bm.Serialize(ms, p); Serializer.Serialize<Person>(ms, p); byte[] data = ms.ToArray();//length=27 709 //還原序列化操作 MemoryStream ms1 = new MemoryStream(data); // BinaryFormatter bm1 = new BinaryFormatter(); //Person p1= bm.Deserialize(ms1) as Person; Person p1 = Serializer.Deserialize<Person>(ms1); Console.ReadKey(); } }}
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C#使用protobuf