一、golang
1、protocal buffer安装
https://github.com/google/protobuf/releases下载安装包
解压后看到protoc.exe 我这里是windows
最后设置环境变量即可
2、安装 golang protobuf
go get -u github.com/golang/protobuf/proto // golang protobuf 库 go get -u github.com/golang/protobuf/protoc-gen-go //protoc --go_out 工具
3、安装 gRPC-go
go get google.golang.org/grpc
好啦开始写代码，我们就用网上的helloworld来测试
4、项目结构
golang 为服务端，其它语言都为客服端。
syntax = "proto3"; package helloworld; // The greeting service definition. service Greeter { // Sends a greeting rpc SayHello (HelloRequest) returns (HelloReply) {} } // The request message containing the user's name. message HelloRequest { string name = 1; } // The response message containing the greetings message HelloReply { string message = 1; } 运行编译命令
protoc --go_out=plugins=grpc:. helloworld.proto
服务端
package main import ( "context" "google.golang.org/grpc" pb "grpc-test/server/proto/helloworld" "log" "net" ) const ( PORT = ":50001" ) type server struct {} func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) { log.Println("request: ", in.Name) return &pb.HelloReply{Message: "Hello " + in.Name}, nil } func main(){ lis, err := net.Listen("tcp", PORT) if err != nil { log.Fatalf("failed to listen: %v", err) } s := grpc.NewServer() pb.RegisterGreeterServer(s, &server{}) log.Println("rpc服务已经开启") s.Serve(lis) } package main import ( "context" "google.golang.org/grpc" pb "grpc-test/client/proto/helloworld" "log" "os" ) const ( address = "localhost:50001" ) func main() { conn, err := grpc.Dial(address, grpc.WithInsecure()) if err != nil { log.Fatalf("did not connect: %v", err) } defer conn.Close() c := pb.NewGreeterClient(conn) name := "lin" if len(os.Args) > 1 { name = os.Args[1] } r, err := c.SayHello(context.Background(), &pb.HelloRequest{Name: name}) if err != nil { log.Fatalf("could not greet: %v", err) } log.Println(r.Message) } 运行结果
二、nodejs
npm install grpc-tools --save-dev npm install google-protobuf --save npm install grpc --save
在./node_modules/grpc-tools/bin下，你会找到 protoc.exe 和 grpc_node_plugin.exe两个文件
2、运行编译命令
./node_modules/grpc-tools/bin/protoc --js_out=import_style=commonjs,binary:./ --plugin=protoc-gen-grpc=./node_modules/grpc-tools/bin/grpc_node_plugin.exe --grpc_out=. helloworld.proto
3、client.js
var grpc = require('grpc'); var messages = require('./proto/helloworld/helloworld_pb.js'); var services = require('./proto/helloworld/helloworld_grpc_pb.js') var request = new messages.HelloRequest(); request.setName('world'); var client = new services.GreeterClient( 'localhost:50001', grpc.credentials.createInsecure() ); client.sayHello(request, function(err,data){ if(err){ console.error(err); } console.log(data); }) 4、运行结果
三、C# core
1、安装必要的包
Install-Package Grpc Install-Package Google.Protobuf Install-Package Grpc.Tools
2、运行编译命令
protoc.exe -I helloworld --csharp_out helloworld helloworld/helloworld.proto --grpc_out helloworld --plugin=protoc-gen-grpc=grpc_csharp_plugin.exe
3、测试代码
using System; using Grpc.Core; using Helloworld; namespace grpc { class Program { static void Main(string[] args) { Channel channel = new Channel("127.0.0.1:50001", ChannelCredentials.Insecure); var client = new Greeter.GreeterClient(channel); var reply = client.SayHello(new HelloRequest{ Name = "lin" }); Console.WriteLine("来自" + reply.Message); channel.ShutdownAsync().Wait(); Console.WriteLine("任意键退出..."); Console.ReadKey(); } } } 运行结果
好了测试就到这里，因为我这边服务端暂时用到这几种语言。其它语言大家自行测试。
来源：博客园
作者：cqfanxp
链接：https://www.cnblogs.com/fanxp/p/11408114.html