运行起来的话大概是这样
从零开始
1. 先安装 golang
sudo apt install golang
添加环境变量
export GOROOT=/usr/lib/go
export GOPATH=$HOME/go
export GOBIN=$GOPATH/bin
export PATH=$PATH:$GOROOT:$GOPATH:$GOBIN
2. 安装git
sudo apt install git
3. 安装 grpc 依赖
go get -u github.com/golang/protobuf/protoc-gen-go
4. 添加 go.mod 文件
module helloworld
require (
google.golang.org/grpc v1.29.1
google.golang.org/protobuf v1.25.0
)
go 1.13
5. 安装 protoc 工具
sudo apt-get install autoconf automake libtool curl make g++ unzip
git clone https://github.com/google/protobuf.git
cd protobuf
git submodule update –init –recursive
./autogen.sh
./configure
make
make check
sudo make install
sudo ldconfig
protoc –version
切换到项目工作目录
cd grpc_go/
创建文件/home/lizhe/works/grpc_go/pbfiles/Hi.proto
syntax="proto3"; //
package services;
option go_package = "../services";
message HiRequest {
string say = 1;
}
message HiResponse {
string responed = 1;
}
service HiService {
rpc GetHiResponed(HiRequest) returns (HiResponse);
}切换到 pbfiles 文件夹
cd pbfiles
protoc –go_out=plugins=grpc:. Hi.proto
会生成 /home/lizhe/works/grpc_go/services/Hi.pb.go
创建文件 /home/lizhe/works/grpc_go/services/HiService.go
package services
import (
"context"
"fmt"
)
type HiService struct {
}
func (hs HiService) GetHiResponed(ctx context.Context, request *HiRequest) (*HiResponse, error) {
fmt.Println("Say:" + request.Say)
return &HiResponse{Responed: "helloworld"}, nil
}创建 server.go
package main
import (
"helloworld/services"
"net"
"google.golang.org/grpc"
)
func main() {
rpcServer := grpc.NewServer() // 创建grpc服务
services.RegisterHiServiceServer(rpcServer, new(services.HiService)) // 注册，new方法中的是services包中定义的结构体HiService
lis, _ := net.Listen("tcp", ":8081") // 开启一个监听端口
rpcServer.Serve(lis) // 启动服务
}
创建 client.go
package main
import (
"context"
"fmt"
"helloworld/services"
"log"
"google.golang.org/grpc"
)
func main() {
conn, err := grpc.Dial(":8081", grpc.WithInsecure())
if err != nil {
log.Println(err)
}
defer conn.Close()
client := services.NewHiServiceClient(conn)
resp, err := client.GetHiResponed(context.Background(), &services.HiRequest{Say: "Hello"})
if err != nil {
log.Println(err)
}
fmt.Println(resp.Responed)
}