protobuf c++ 序列化为string_Go语言 ProtoBuf 序列化和反序列化

前言

Protobuf

是Google开发的一个网络通信协议，提供了高效率的序列化和反序列化机制，序列化就是把对象转换成二进制数据发送给服务端，反序列化就是将收到的二进制数据转换成对应的对象。官方版本支持Go，C++，Java，Python等语言。

Go语言中Protocol Buffers是一个灵活、高效的、自动化的用于对结构数据进行序列化和反序列化协议，与XML、Json相比，Protocol Buffers序列化后码流更小、速度理快、操作简单。

Protobuf优点

• 体积小，效率高

• 使用简单，兼容性好，维护简单

• 加密性好

• 跨平台

protoc版本

protoc --versionlibprotoc 3.11.4

proto文件

syntax = "proto3";package proto_jsonpb;option go_package = "pb_models/pf";message Doubles{double doubles = 1;}message Maps{map<string, string> maps = 1;}enum Status{UNKNOWN = 0;RUNNING = 1;STOPED = 2;}message UnionMappy{map nums = 1;map<string, string> strs = 2;map impas = 3;map<bool, bool> bl = 4;map<string, Status> sts = 5;mapbool> i32bl = 6;mapbool> i64bl = 7;}

代码实现

package mainimport ("fmt""github.com/golang/protobuf/proto""github.com/gtest/pb_models/pf")func main() {var um = &pf.UnionMappy{Nums: map[int64]int32{10: 1,},Strs: map[string]string{"str1": "val1",},Bl: map[bool]bool{true: true,},Sts: map[string]pf.Status{"status::0": pf.Status_UNKNOWN,"status::1": pf.Status_RUNNING,"status::2": pf.Status_STOPED,},I32Bl: map[int32]bool{30: true,},I64Bl: map[int64]bool{60: false,},}p, err := proto.Marshal(um)if err != nil {fmt.Println("marshaling err : ", err)}un := &pf.UnionMappy{}err = proto.Unmarshal(p, un)if err != nil {fmt.Println("unmarshal err : ", err)}fmt.Println("um.Nums：", um.GetNums(), "，um.Sts：", um.GetSts())fmt.Println("um地址：", &um, "\num pf：", um)fmt.Println("un地址：", &un, "\nun pf：", un)fmt.Println("un.Nums：", un.GetNums(), "，un.Sts：", un.GetSts())var dd = pf.Doubles{Doubles: 1.321,}fmt.Println("doubles double is : ", dd.GetDoubles())fmt.Printf("status UNKNOWN:%s, status RUNNING:%s，status STOPED:%s\n",pf.Status_UNKNOWN, pf.Status_RUNNING, pf.Status_STOPED)fmt.Println("status name is : ", pf.Status_name)fmt.Println("status value is : ", pf.Status_value)return}

运行结果

protoc --go_out=plugins=grpc:. pf.proto