dep 包管理

配置环境变量

GOPATH/bin

GO/bin

protoc 下载并配置环境变量

a. 预备(一些需要的依赖)

mkdir -p $GOPATH/src/golang.org/x

git clone https://github.com/golang/tools.git

go get github.com/gogo/protobuf/proto

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

go get github.com/pkg/errors

go install -v ./...

备注：项目使用的go package 为 github.com/rongfengliang/grpcapp

下面的目录在对应的子目录

a. 项目结构

├── grpcappdemo

├── grpcdemoclient

└── grpcdemoserver

b. grpcappdemo/app.proto

syntax = "proto3";

package donutloop.xservice.example.helloworld;

option go_package = "helloworld";

service HelloWorld {

  rpc Hello(HelloReq) returns (HelloResp);

}

message HelloReq {

  string subject = 1;

}

message HelloResp {

  string text = 1;

}

c. generate code

protoc -I . app.proto --xservice_out=. --go_out=. 

d. grpcdemoclient/main.go

package main

import (

	"context"

	"fmt"

	"net/http"

	pb "github.com/rongfengliang/grpcapp/grpcappdemo"

)

func main() {

	client := pb.NewHelloWorldJSONClient("http://localhost:8080", &http.Client{})

	for i := 1; i < 100000; i++ {

		resp, err := client.Hello(context.Background(), &pb.HelloReq{Subject: "World"})

		if err == nil {

			fmt.Println(resp.Text) // prints "Hello World"

		}

e. server

package main

import (

	"context"

	"net/http"

	pb "github.com/rongfengliang/grpcapp/grpcappdemo"

)

// HelloWorldServer HelloWorldServer

type HelloWorldServer struct{}

// Hello Hello

func (s *HelloWorldServer) Hello(ctx context.Context, req *pb.HelloReq) (*pb.HelloResp, error) {

	return &pb.HelloResp{Text: "Hello from rongfengliang " + req.Subject}, nil

}

// Run the implementation in a local server

func main() {

	handler := pb.NewHelloWorldServer(&HelloWorldServer{}, nil)

	// You can use any mux you like - NewHelloWorldServer gives you an http.Handler.

	mux := http.NewServeMux()

	// The generated code includes a const, <ServiceName>PathPrefix, which

	// can be used to mount your service on a mux.

	mux.Handle(pb.HelloWorldPathPrefix, handler)

	http.ListenAndServe(":8080", mux)

}

cd grpcdemoserver

go run main.go

cd grpcdemoclient

go run main.go

参考项目对应的Dockerfile && docker-compose.yml

https://github.com/rongfengliang/grpcapp 

https://github.com/google/protobuf/releases/tag/v3.5.1

https://github.com/donutloop/xservice

https://github.com/rongfengliang/grpcapp

https://github.com/golang/dep