1.Ubuntu1804LTS

1.Golang环境搭建

1.安装工具

sudo apt install -y wget curl tar unzip tree 

2.下载golang包

wget https://dl.google.com/go/go1.14.2.linux-amd64.tar.gz && ls | grep go 

3.解压到/usr/local/

sudo tar -zxvf go1.14.2.linux-amd64.tar.gz -C /usr/local ls /usr/local/ | grep go 

4.创建工作目录

mkdir -p ~/workspace/go/bin ~/workspace/go/src ~/workspace/go/pkg ~/workspace/go/src && tree ~/workspace/go/ 

5.设置环境变量

tee -a 是追加

sudo tee -a /etc/profile <<-'EOF' export GOROOT=/usr/local/go export GOPATH=/home/wyf/workspace/go export GOBIN=/home/wyf/workspace/go/bin export GO111MODULE="on" export GOPROXY=https://goproxy.io export PATH=$PATH:$GOROOT/bin:$GOPATH/bin:$GOBIN:$GOPROXY EOF source /etc/profile 

6.测试

go version go env 

2.golang-protobuf

1.下载

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

ls ~/workspace/go/pkg 

2.编译

1.查找protoc-gen-go

sudo find / -name "protoc-gen-go" 

2.进入目录

cd /home/wyf/workspace/go/pkg/mod/github.com/golang/protobuf@v1.4.0/protoc-gen-go && pwd 

1和2两步骤可以使用使用集成的命令：

查找并进入目录

cd `sudo find / -name "protoc-gen-go"` && pwd 

3.切换root

su root 

4.执行build

/usr/local/go/bin/go build 

5.确定编译完成

ls -la  

6.拷贝到/bin

cp protoc-gen-go /bin/ 

7.退出root

exit 

3.测试

终端输入protoc-，然后按下Tab键查看是否补全，补全即OK！

protoc- 

2.CentOS-7

1.安装工具

sudo yum install -y wget curl tar unzip tree 

2.下载golang包

wget https://dl.google.com/go/go1.14.2.linux-amd64.tar.gz && ls | grep go 

3.解压到/usr/local/

sudo tar -zxvf go1.14.2.linux-amd64.tar.gz -C /usr/local ls /usr/local/ | grep go 

4.创建工作目录

mkdir -p ~/workspace/go/bin ~/workspace/go/src ~/workspace/go/pkg ~/workspace/go/src && tree ~/workspace/go/ 

5.设置环境变量

tee -a 是追加

sudo tee -a /etc/profile <<-'EOF' export GOROOT=/usr/local/go export GOPATH=/home/wyf/workspace/go export GOBIN=/home/wyf/workspace/go/bin export GO111MODULE="on" export GOPROXY=https://goproxy.io export PATH=$PATH:$GOROOT/bin:$GOPATH/bin:$GOBIN:$GOPROXY EOF source /etc/profile 

6.测试

go version go env 

2.golang-protobuf

1.下载

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

ls ~/workspace/go/pkg 

2.编译

1.查找protoc-gen-go

sudo find / -name "protoc-gen-go" 

2.进入目录

cd /home/wyf/workspace/go/pkg/mod/github.com/golang/protobuf@v1.4.0/protoc-gen-go && pwd 

1和2两步骤可以使用使用集成的命令：

查找并进入目录

cd `sudo find / -name "protoc-gen-go"` && pwd 

3.切换root

su root 

4.执行build

go build  

5.确定编译完成

ls -la  

6.拷贝到/bin

cp protoc-gen-go /bin/ 

7.退出root

exit 

3.测试

终端输入protoc-，然后按下Tab键查看是否补全，补全即OK！

protoc- 

3.测试

1.创建工程

mkdir -p $GOPATH/src/goprotobuf && cd $_ && pwd 

2.go mod 初始化

go mod init goprotobuf 

3.创建protobuf文件目录

mkdir -p $GOPATH/src/goprotobuf/pb && cd $_ && pwd 

4.创建.proto文件

vim Student.proto 

内容如下：

syntax = "proto3"; //指定版本信息，不指定会报错  package pb;  // message为关键字，作用为定义一种消息类型 message Student{     string name = 1;// 序号1     int32 age = 2; // 序号2 } 

5.编译成go文件

1.标准格式

protoc --proto_path=IMPORT_PATH --go_out=DST_DIR path/to/file.proto 

2.通用格式

cd $GOPATH/src/goprotobuf/pb/ 

将当前目录下【$GOPATH/src/goprotobuf/pb/】的所有的.proto文件编译成go文件，放在当前目录下【$GOPATH/src/goprotobuf/pb/】

protoc --go_out=./ *.proto 

编译完成后目录：

编译完成后的Student.pb.go文件

// Code generated by protoc-gen-go. DO NOT EDIT. // versions: //  protoc-gen-go v1.21.0 //  protoc        v3.11.4 // source: Student.proto package pb  import (  proto "github.com/golang/protobuf/proto"  protoreflect "google.golang.org/protobuf/reflect/protoreflect"  protoimpl "google.golang.org/protobuf/runtime/protoimpl"  reflect "reflect"  sync "sync" ) const ( // Verify that this generated code is sufficiently up-to-date. _ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion) // Verify that runtime/protoimpl is sufficiently up-to-date. _ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20) ) // This is a compile-time assertion that a sufficiently up-to-date version // of the legacy proto package is being used. const _ = proto.ProtoPackageIsVersion4  // message为关键字，作用为定义一种消息类型 type Student struct {  state         protoimpl.MessageState  sizeCache     protoimpl.SizeCache  unknownFields protoimpl.UnknownFields   Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"` // 序号1  Age  int32 `protobuf:"varint,2,opt,name=age,proto3" json:"age,omitempty"` // 序号2 } func (x *Student) Reset() { *x = Student{} if protoimpl.UnsafeEnabled {   mi := &file_Student_proto_msgTypes[0]   ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))   ms.StoreMessageInfo(mi) } } func (x *Student) String() string { return protoimpl.X.MessageStringOf(x) } func (*Student) ProtoMessage() {} func (x *Student) ProtoReflect() protoreflect.Message {  mi := &file_Student_proto_msgTypes[0] if protoimpl.UnsafeEnabled && x != nil {   ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x)) if ms.LoadMessageInfo() == nil {    ms.StoreMessageInfo(mi) } return ms  } return mi.MessageOf(x) } // Deprecated: Use Student.ProtoReflect.Descriptor instead. func (*Student) Descriptor() ([]byte, []int) { return file_Student_proto_rawDescGZIP(), []int{0} } func (x *Student) GetName() string { if x != nil { return x.Name  } return "" } func (x *Student) GetAge() int32 { if x != nil { return x.Age  } return 0 } var File_Student_proto protoreflect.FileDescriptor  var file_Student_proto_rawDesc = []byte{ 0x0a, 0x0d, 0x53, 0x74, 0x75, 0x64, 0x65, 0x6e, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x02, 0x70, 0x62, 0x22, 0x2f, 0x0a, 0x07, 0x53, 0x74, 0x75, 0x64, 0x65, 0x6e, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x12, 0x10, 0x0a, 0x03, 0x61, 0x67, 0x65, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x03, 0x61, 0x67, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, } var (  file_Student_proto_rawDescOnce sync.Once  file_Student_proto_rawDescData = file_Student_proto_rawDesc ) func file_Student_proto_rawDescGZIP() []byte {  file_Student_proto_rawDescOnce.Do(func() {   file_Student_proto_rawDescData = protoimpl.X.CompressGZIP(file_Student_proto_rawDescData) }) return file_Student_proto_rawDescData } var file_Student_proto_msgTypes = make([]protoimpl.MessageInfo, 1) var file_Student_proto_goTypes = []interface{}{ (*Student)(nil), // 0: pb.Student } var file_Student_proto_depIdxs = []int32{ 0, // [0:0] is the sub-list for method output_type 0, // [0:0] is the sub-list for method input_type 0, // [0:0] is the sub-list for extension type_name 0, // [0:0] is the sub-list for extension extendee 0, // [0:0] is the sub-list for field type_name } func init() { file_Student_proto_init() } func file_Student_proto_init() { if File_Student_proto != nil { return } if !protoimpl.UnsafeEnabled {   file_Student_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} { switch v := v.(*Student); i { case 0: return &v.state    case 1: return &v.sizeCache    case 2: return &v.unknownFields    default: return nil } } } type x struct{}  out := protoimpl.TypeBuilder{   File: protoimpl.DescBuilder{    GoPackagePath: reflect.TypeOf(x{}).PkgPath(),    RawDescriptor: file_Student_proto_rawDesc,    NumEnums: 0,    NumMessages: 1,    NumExtensions: 0,    NumServices: 0, },   GoTypes:           file_Student_proto_goTypes,   DependencyIndexes: file_Student_proto_depIdxs,   MessageInfos:      file_Student_proto_msgTypes, }.Build()  File_Student_proto = out.File  file_Student_proto_rawDesc = nil  file_Student_proto_goTypes = nil  file_Student_proto_depIdxs = nil } 

生成的【.pb.go】文件不允许编辑，如需要修改某些字段或者信息，则需要修改【.proto】文件然后重新编译生成即可。

6.使用protobuf协议编程

1.在工程项目目录下创建main.go文件

cd $GOPATH/src/ && touch main.go 

2.编辑main.go

vim main.go 

内容如下