環境：ubuntu 16.04 64位

安裝Go

安裝過程省略。

安裝完成后設置環境變量

開發工具Gogland

安裝過程省略。

安裝gRPC

go get google.golang.org/grpc

以上過程需要翻墻

安裝成功后，會在GOPATH的第一個目錄保存相關文件。

安裝protoc和go plug-in

下載protoc

https://github.com/google/protobuf/releases

安裝go plug-in

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

設置環境變量

運行Gogland創建工程FaceRecgonitionServer

目錄結構如下

helloworld.proto

syntax = "proto3";option java_multiple_files = true; option java_package = "io.grpc.examples.helloworld"; option java_outer_classname = "HelloWorldProto";package helloworld;// The greeting service definition. service Greeter {// Sends a greetingrpc SayHello (HelloRequest) returns (HelloReply) {}rpc SayHelloAgain (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; }
編譯helloworld.proto，生成helloworld.pb.go

編輯server.go

package mainimport ("log""net""golang.org/x/net/context""google.golang.org/grpc"pb "pb/helloworld""google.golang.org/grpc/reflection" )const (port = ":50051" )// main is used to implement helloworld.GreeterServer. type server struct{}// SayHello implements helloworld.GreeterServer func (s *server) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {return &pb.HelloReply{Message: "Hello " + in.Name}, nil } func (s *server) SayHelloAgain(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {return &pb.HelloReply{Message: "Hello again " + 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{})// Register reflection service on gRPC main.reflection.Register(s)if err := s.Serve(lis); err != nil {log.Fatalf("failed to serve: %v", err)} }

編輯client.go

package mainimport ("log""os""golang.org/x/net/context""google.golang.org/grpc"pb "pb/helloworld" )const (address = "localhost:50051"defaultName = "chf" )func main() {// Set up a connection to the server.conn, err := grpc.Dial(address, grpc.WithInsecure())if err != nil {log.Fatalf("did not connect: %v", err)}defer conn.Close()c := pb.NewGreeterClient(conn)// Contact the server and print out its response.name := defaultNameif 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.Printf("Greeting: %s", r.Message)r, err = c.SayHelloAgain(context.Background(), &pb.HelloRequest{Name: name})if err != nil {log.Fatalf("could not greet: %v", err)}log.Printf("Greeting: %s", r.Message) }

設置GOPATH

運行server

運行client

--結束--

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