golang 使用protobuf

安装protobuf工具:

安装protobuf工具:
安装protoc：

$ apt install golang-github-gogo-protobuf-dev

安装protoc-gen-go：

$ apt  install golang-goprotobuf-dev

protoc-gen-go是用来将protobuf的代码转换成go语言代码的一个插件

$ go get -u github.com/golang/protobuf/protoc-gen-go

proto是protobuf在golang中的接口模块，用于调用marshal、unmarshal

$ go get -u github.com/golang/protobuf/proto

编辑proto协议文件:

[email protected]:~/zzz# cat protos
syntax = "proto3";

package protos;

message Info {
  uint32 UID = 1;
  int32 Power = 3;
  int64 StartedAt = 4;
  double OutputMoney = 7;
}
[email protected]:~/zzz#

生成golang代码：

[email protected]:~/zzz# tree
.
├── protos
└── protos.pb.go

0 directories, 2 files
[email protected]:~/zzz# 

[email protected]:~/zzz# cat protos.pb.go.pb.go 
// Code generated by protoc-gen-go. DO NOT EDIT.
// source: protos.pb.go

/*
Package protos is a generated protocol buffer package.

It is generated from these files:
	protos.pb.go

It has these top-level messages:
	Info
*/
package protos

import proto "github.com/golang/protobuf/proto"
import fmt "fmt"
import math "math"

// Reference imports to suppress errors if they are not otherwise used.
var _ = proto.Marshal
var _ = fmt.Errorf
var _ = math.Inf

// This is a compile-time assertion to ensure that this generated file
// is compatible with the proto package it is being compiled against.
// A compilation error at this line likely means your copy of the
// proto package needs to be updated.
const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package

type Info struct {
	UID         uint32  `protobuf:"varint,1,opt,name=UID,json=uID" json:"UID,omitempty"`
	Power       int32   `protobuf:"varint,3,opt,name=Power,json=power" json:"Power,omitempty"`
	StartedAt   int64   `protobuf:"varint,4,opt,name=StartedAt,json=startedAt" json:"StartedAt,omitempty"`
	OutputMoney float64 `protobuf:"fixed64,7,opt,name=OutputMoney,json=outputMoney" json:"OutputMoney,omitempty"`
}

func (m *Info) Reset()                    { *m = Info{} }
func (m *Info) String() string            { return proto.CompactTextString(m) }
func (*Info) ProtoMessage()               {}
func (*Info) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }

func (m *Info) GetUID() uint32 {
	if m != nil {
		return m.UID
	}
	return 0
}

func (m *Info) GetPower() int32 {
	if m != nil {
		return m.Power
	}
	return 0
}

func (m *Info) GetStartedAt() int64 {
	if m != nil {
		return m.StartedAt
	}
	return 0
}

func (m *Info) GetOutputMoney() float64 {
	if m != nil {
		return m.OutputMoney
	}
	return 0
}

func init() {
	proto.RegisterType((*Info)(nil), "protos.Info")
}

func init() { proto.RegisterFile("protos.pb.go", fileDescriptor0) }

var fileDescriptor0 = []byte{
	// 141 bytes of a gzipped FileDescriptorProto
	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xe2, 0x29, 0x28, 0xca, 0x2f,
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}
[email protected]:~/zzz#