protoc protobuff安装

protoc 工具安装

安装地址

https://github.com/protocolbuffers/protobuf/releases/tag/v3.15.2

安装方式

windows 下载 https://github.com/protocolbuffers/protobuf/releases/download/v3.15.2/protoc-3.15.2-win64.zip

解压后把protoc.exe复制到gopath的bin目录下，或者新建目录加入环境变量

查看版本

D:wwwgogreet>protoc --version
libprotoc 3.15.1

安装 protoc-gen-go

​ go get github.com/golang/protobuf/protoc-gen-go

使用protoc转换

​ protoc hello.proto --go_out=.

​ 生成hello.pb.go 在当前目录

​ pb protocbuff

protoc语法

1. 编辑hello.proto

syntax = "proto3"; // 版本

option go_package = ".;hello";

message HelloRequest{
  int32 id = 1;
  string name = 2;
  int32 age = 3;
}

2. 执行命令

   protoc hello.proto --go_out=.

3. go调用试试

   package main
   
   import (
   	"fmt"
   	"github.com/golang/protobuf/proto"
   	"zero/testHello"
   )
   
   func main() {
   	name := make([]string,0)
   	name = append(name, "hello")
   	he := testHello.HelloRequest{Id: 1,Name:name,Age: 10}
   
   	fmt.Println(he.GetName())
   	fmt.Println(he.GetAge())
   	fmt.Println(he.Id)
   	fmt.Println(&he)
   
   
   	b,_ := proto.Marshal(&he)
   	fmt.Println(b)
   
   	he2 := testHello.HelloRequest{}
   	proto.Unmarshal(b,&he2)
   	fmt.Println(he2.GetName())
   }
   
   

4. 运行结果

   GOROOT=E:Go #gosetup
   GOPATH=C:UsersAdministratorgo #gosetup
   E:Goingo.exe build -o C:UsersAdministratorAppDataLocalTemp\___go_build_zero.exe zero #gosetup
   C:UsersAdministratorAppDataLocalTemp\___go_build_zero.exe #gosetup
   [hello]
   10
   1
   id:1  name:"hello"  age:10
   [8 1 18 5 104 101 108 108 111 24 10]
   [hello]
   
   Process finished with exit code 0
   

5. 生成带grpc服务的

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