GRPC-go版本

1.安装GO,protobuf

只适合有梯子的

GO的安装没必要说了

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

选合适的版本，将解压后bin目录的protoc.exe放到GO的安装目录的bin下(省事)

打开CMD，输入protoc --version，正常如下图

环境变量有三个需要设置

GOPATH：是GO的工程目录
GOBIN：生成的exe目录
PATH:电脑环境变量

2.安装相关包

2021-0721

好像要在grpcTest目录下，go mod init 之后进行安装，也有可能是我电脑问题，

1.golang 的proto工具包

go get -u github.com/golang/protobuf/proto

2.golang 的proto编译支持

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

3.安装grpc包

go get -u google.golang.org/grpc

4.安装grpc-gen插件

go get -u google.golang.org/protobuf/cmd/protoc-gen-go

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

go get -u google.golang.org/grpc/cmd/protoc-gen-go-grpc

go install google.golang.org/grpc/cmd/protoc-gen-go-grpc

安装正常的话，在GOPATH的bin目录下会有两个exe

3.检验

去下载示例代码,放到GOPATH下，找到里面的helloworld

 git clone -b v1.35.0 https://github.com/grpc/grpc-go

在GOPATH下新建grpcTest，项目结构如下

helloworld.proto(官方)

// Copyright 2015 gRPC authors.

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

//     http://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

syntax = "proto3";

option go_package = "google.golang.org/grpc/examples/helloworld/helloworld";

-->换成option go_package="." 表示生成的proto.go在当前目录

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 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;

}

生成.go文件

client.go(官方) server和client一样，我这就只列举client

/*

 *

 * Copyright 2015 gRPC authors.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 *

 */

// Package main implements a client for Greeter service.

package main

import (

    "context"

    "log"

    "os"

    "time"

    "google.golang.org/grpc"

    pb "google.golang.org/grpc/examples/helloworld/helloworld"

    --》改成   pb "grpcTest/proto"

)

const (

    address     = "localhost:50051"

    defaultName = "world"

)

func main() {

    // Set up a connection to the server.

    conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())

    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 := defaultName

    if len(os.Args) > 1 {

        name = os.Args[1]

    }

    ctx, cancel := context.WithTimeout(context.Background(), time.Second)

    defer cancel()

    r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})

    if err != nil {

        log.Fatalf("could not greet: %v", err)

    }

    log.Printf("Greeting: %s", r.GetMessage())

}

然后去运行sever和client

ok了

还是建议大家多去看官方的介绍，不要怕英文，有点底子的都能看懂

Quick start | Go | gRPC

出现protoc-gen-go' is not recognized as***********就是你没配置好环境变量，把GOPATH下的bin加到PATH里去

巴特西

GRPC-go版本

GRPC-go版本

1.安装GO,protobuf

2.安装相关包

2021-0721

安装正常的话，在GOPATH的bin目录下会有两个exe

3.检验

参考链接

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