Goland中Protobuf的安装、配置和使用

vim ~/.bash_profile

# protobuf
export PROTOBUF=/usr/local/protobuf
export PATH=$PROTOBUF/bin:$PATH

source ~/.bash_profile

tar zxvf protobuf-all-3.20.1.tar.gz

sudo ./configure
sudo make
sudo make check
sudo make install

go install google.golang.org/protobuf/cmd/protoc-gen-go@latest

% go get -u github.com/golang/protobuf/protoc-gen-go
go: module github.com/golang/protobuf is deprecated: Use the "google.golang.org/protobuf" module instead.
go: added github.com/golang/protobuf v1.5.2
go: added google.golang.org/protobuf v1.28.0

syntax = "proto3";
package user;
option go_package ="./user";
message User {
  int64 user_id = 1;
  string user_name = 2;
  string password = 3;
}

protoc --go_out=. ./idl/*.proto

package main
import (
   "encoding/json"
   "fmt"
   "github.com/starine/go-protoc-example/user"
   "google.golang.org/protobuf/proto"
   "log"
)
func main() {
   fmt.Println("Hello World. \n")
   user1 := user.User{}
   user1.Password = "123456"
   user1.UserName = "starine"
   bytes, _ := json.Marshal(user1)
   fmt.Println(string(bytes))
   //序列化user结构体数据
   out, err := proto.Marshal(&user1)
   if err != nil {
      log.Fatalln("Failed to encode User:", err)
   }
   fmt.Println(out)
   //反序列化user结构体
   user2 := user.User{}
   err = proto.Unmarshal(out, &user2)
   if err!=nil {
      log.Fatalln("Failed to parse User:", err)
   }
   bytes, _ = json.Marshal(user2)
   fmt.Println(string(bytes))
}