#生成代码(这里需要将protoc-gen-go执行文件所在的路径配置到环境变量PATH中)
protoc --go_out=plugins=grpc:. testone.proto
testone.proto见https://blog.csdn.net/woailp___2005/article/details/113605686
testone.pb.go内容如下
注:里面的package main是手工改的，因为我开启了GO111MODULE=on(不然go get下载各种包一直timeout)，自定义的包放到$GOPATH下build报错找不到
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.25.0
// protoc v3.6.1
// source: testone.proto
package main
import (
context "context"
proto "github.com/golang/protobuf/proto"
grpc "google.golang.org/grpc"
codes "google.golang.org/grpc/codes"
status "google.golang.org/grpc/status"
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
type HelloRequest struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Name string `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
}
func (x *HelloRequest) Reset() {
*x = HelloRequest{}
if protoimpl.UnsafeEnabled {
mi := &file_testone_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HelloRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HelloRequest) ProtoMessage() {}
func (x *HelloRequest) ProtoReflect() protoreflect.Message {
mi := &file_testone_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 HelloRequest.ProtoReflect.Descriptor instead.
func (*HelloRequest) Descriptor() ([]byte, []int) {
return file_testone_proto_rawDescGZIP(), []int{0}
}
func (x *HelloRequest) GetName() string {
if x != nil {
return x.Name
}
return ""
}
type HelloReply struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
Message string `protobuf:"bytes,1,opt,name=message,proto3" json:"message,omitempty"`
}
func (x *HelloReply) Reset() {
*x = HelloReply{}
if protoimpl.UnsafeEnabled {
mi := &file_testone_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *HelloReply) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*HelloReply) ProtoMessage() {}
func (x *HelloReply) ProtoReflect() protoreflect.Message {
mi := &file_testone_proto_msgTypes[1]
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 HelloReply.ProtoReflect.Descriptor instead.
func (*HelloReply) Descriptor() ([]byte, []int) {
return file_testone_proto_rawDescGZIP(), []int{1}
}
func (x *HelloReply) GetMessage() string {
if x != nil {
return x.Message
}
return ""
}
var File_testone_proto protoreflect.FileDescriptor
var file_testone_proto_rawDesc = []byte{
0x0a, 0x0d, 0x74, 0x65, 0x73, 0x74, 0x6f, 0x6e, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
0x07, 0x74, 0x65, 0x73, 0x74, 0x6f, 0x6e, 0x65, 0x22, 0x22, 0x0a, 0x0c, 0x48, 0x65, 0x6c, 0x6c,
0x6f, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65,
0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x22, 0x26, 0x0a, 0x0a,
0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x65,
0x73, 0x73, 0x61, 0x67, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x6d, 0x65, 0x73,
0x73, 0x61, 0x67, 0x65, 0x32, 0x44, 0x0a, 0x07, 0x47, 0x72, 0x65, 0x65, 0x74, 0x65, 0x72, 0x12,
0x39, 0x0a, 0x09, 0x4d, 0x79, 0x54, 0x65, 0x73, 0x74, 0x4f, 0x6e, 0x65, 0x12, 0x15, 0x2e, 0x74,
0x65, 0x73, 0x74, 0x6f, 0x6e, 0x65, 0x2e, 0x48, 0x65, 0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x71, 0x75,
0x65, 0x73, 0x74, 0x1a, 0x13, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x6f, 0x6e, 0x65, 0x2e, 0x48, 0x65,
0x6c, 0x6c, 0x6f, 0x52, 0x65, 0x70, 0x6c, 0x79, 0x22, 0x00, 0x42, 0x0b, 0x5a, 0x09, 0x2e, 0x3b,
0x74, 0x65, 0x73, 0x74, 0x6f, 0x6e, 0x65, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
}
var (
file_testone_proto_rawDescOnce sync.Once
file_testone_proto_rawDescData = file_testone_proto_rawDesc
)
func file_testone_proto_rawDescGZIP() []byte {
file_testone_proto_rawDescOnce.Do(func() {
file_testone_proto_rawDescData = protoimpl.X.CompressGZIP(file_testone_proto_rawDescData)
})
return file_testone_proto_rawDescData
}
var file_testone_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_testone_proto_goTypes = []interface{}{
(*HelloRequest)(nil), // 0: testone.HelloRequest
(*HelloReply)(nil), // 1: testone.HelloReply
}
var file_testone_proto_depIdxs = []int32{
0, // 0: testone.Greeter.MyTestOne:input_type -> testone.HelloRequest
1, // 1: testone.Greeter.MyTestOne:output_type -> testone.HelloReply
1, // [1:2] is the sub-list for method output_type
0, // [0:1] 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_testone_proto_init() }
func file_testone_proto_init() {
if File_testone_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_testone_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HelloRequest); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_testone_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*HelloReply); 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_testone_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 0,
NumServices: 1,
},
GoTypes: file_testone_proto_goTypes,
DependencyIndexes: file_testone_proto_depIdxs,
MessageInfos: file_testone_proto_msgTypes,
}.Build()
File_testone_proto = out.File
file_testone_proto_rawDesc = nil
file_testone_proto_goTypes = nil
file_testone_proto_depIdxs = nil
}
// Reference imports to suppress errors if they are not otherwise used.
var _ context.Context
var _ grpc.ClientConnInterface
// This is a compile-time assertion to ensure that this generated file
// is compatible with the grpc package it is being compiled against.
const _ = grpc.SupportPackageIsVersion6
// GreeterClient is the client API for Greeter service.
//
// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
type GreeterClient interface {
MyTestOne(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error)
}
type greeterClient struct {
cc grpc.ClientConnInterface
}
func NewGreeterClient(cc grpc.ClientConnInterface) GreeterClient {
return &greeterClient{cc}
}
func (c *greeterClient) MyTestOne(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloReply, error) {
out := new(HelloReply)
err := c.cc.Invoke(ctx, "/testone.Greeter/MyTestOne", in, out, opts...)
if err != nil {
return nil, err
}
return out, nil
}
// GreeterServer is the server API for Greeter service.
type GreeterServer interface {
MyTestOne(context.Context, *HelloRequest) (*HelloReply, error)
}
// UnimplementedGreeterServer can be embedded to have forward compatible implementations.
type UnimplementedGreeterServer struct {
}
func (*UnimplementedGreeterServer) MyTestOne(context.Context, *HelloRequest) (*HelloReply, error) {
return nil, status.Errorf(codes.Unimplemented, "method MyTestOne not implemented")
}
func RegisterGreeterServer(s *grpc.Server, srv GreeterServer) {
s.RegisterService(&_Greeter_serviceDesc, srv)
}
func _Greeter_MyTestOne_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
in := new(HelloRequest)
if err := dec(in); err != nil {
return nil, err
}
if interceptor == nil {
return srv.(GreeterServer).MyTestOne(ctx, in)
}
info := &grpc.UnaryServerInfo{
Server: srv,
FullMethod: "/testone.Greeter/MyTestOne",
}
handler := func(ctx context.Context, req interface{}) (interface{}, error) {
return srv.(GreeterServer).MyTestOne(ctx, req.(*HelloRequest))
}
return interceptor(ctx, in, info, handler)
}
var _Greeter_serviceDesc = grpc.ServiceDesc{
ServiceName: "testone.Greeter",
HandlerType: (*GreeterServer)(nil),
Methods: []grpc.MethodDesc{
{
MethodName: "MyTestOne",
Handler: _Greeter_MyTestOne_Handler,
},
},
Streams: []grpc.StreamDesc{},
Metadata: "testone.proto",
}
服务端代码
package main
import (
"fmt"
"log"
"net"
"google.golang.org/grpc"
"golang.org/x/net/context"
"google.golang.org/grpc/reflection"
)
// 业务实现方法的容器
type server struct{}
func (s *server) MyTestOne(ctx context.Context, in *HelloRequest) (*HelloReply, error) {
fmt.Println("name:"+in.Name)
return &HelloReply{Message: "hello" }, nil
}
func main() {
lis, err := net.Listen("tcp", ":3000") //监听所有网卡3000端口的TCP连接
if err != nil {
log.Fatalf("监听失败: %v", err)
}
s := grpc.NewServer() //创建gRPC服务
RegisterGreeterServer(s, &server{})
// 在gRPC服务器上注册反射服务
reflection.Register(s)
// 将监听交给gRPC服务处理
err = s.Serve(lis)
if err != nil {
log.Fatalf("failed to serve: %v", err)
}
}客户端使用https://blog.csdn.net/woailp___2005/article/details/113605686中c的客户端代码测试
