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补充grpc steam

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This commit is contained in:
yumaojun03 2025-02-16 18:13:10 +08:00
parent 8569acbdbb
commit e9b2a72b15
5 changed files with 257 additions and 24 deletions
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38
skills/grpc/client/main.go
View File

@ -3,6 +3,8 @@ package main
import (
"context"
"fmt"
"io"
"time"
"gitlab.com/go-course-project/go17/skills/grpc/service"
"google.golang.org/grpc"
@ -18,11 +20,41 @@ func main() {
}
client := service.NewHelloServiceClient(conn)
resp, err := client.Hello(context.Background(), &service.HelloRequest{
MyName: "bob",
})
// resp, err := client.Hello(context.Background(), &service.HelloRequest{
// MyName: "bob",
// })
// if err != nil {
// panic(err)
// }
// fmt.Println(resp)
stream, err := client.Chat(context.Background())
if err != nil {
panic(err)
}
// 1. 处理返回结果的在后台
go func() {
for {
resp, err := stream.Recv()
if err != nil {
// 如果遇到io.EOF表示客户端流被关闭
if err == io.EOF {
break
}
fmt.Println(err)
return
}
fmt.Println(resp)
}
}()
// 2. 发送请求的在主Goroutine
for i := range 10 {
stream.Send(&service.ChatRequest{
Id: uint64(i + 1),
Message: "test",
})
time.Sleep(1 * time.Second)
}
}

30
skills/grpc/server/main.go
View File

@ -2,26 +2,50 @@ package main
import (
"context"
"fmt"
"io"
"net"
"gitlab.com/go-course-project/go17/skills/grpc/service"
"google.golang.org/grpc"
)
type UnimplementedHelloServiceServer struct {
type HelloServiceServer struct {
service.UnimplementedHelloServiceServer
}
func (UnimplementedHelloServiceServer) Hello(ctx context.Context, req *service.HelloRequest) (*service.HelloResponse, error) {
func (HelloServiceServer) Hello(ctx context.Context, req *service.HelloRequest) (*service.HelloResponse, error) {
return &service.HelloResponse{
Message: "hello, " + req.MyName,
}, nil
}
func (HelloServiceServer) Chat(stream grpc.BidiStreamingServer[service.ChatRequest, service.ChatResponse]) error {
// 1. 获取用户的请求，然后处理, 处理完成后，通过stream 返回给客户端
for {
// 接收一个请求
req, err := stream.Recv()
if err != nil {
// 如果遇到io.EOF表示客户端流被关闭
if err == io.EOF {
return nil
}
return err
}
// 2. 处理请求
fmt.Println(req.Message)
stream.Send(&service.ChatResponse{
Id: req.Id,
IsSuccess: true,
})
}
}
func main() {
// 1. 示例化一个grpc server对象
server := grpc.NewServer()
service.RegisterHelloServiceServer(server, &UnimplementedHelloServiceServer{})
service.RegisterHelloServiceServer(server, &HelloServiceServer{})
// 2. 启动grpc服务
lis, err := net.Listen("tcp", ":1234")

161
skills/grpc/service/hello.pb.go
View File

@ -133,6 +133,118 @@ func (x *HelloResponse) GetMessage() string {
return ""
}
type ChatRequest struct {
state protoimpl.MessageState `protogen:"open.v1"`
Id uint64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
Message string `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
}
func (x *ChatRequest) Reset() {
*x = ChatRequest{}
mi := &file_skills_grpc_service_hello_proto_msgTypes[2]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *ChatRequest) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ChatRequest) ProtoMessage() {}
func (x *ChatRequest) ProtoReflect() protoreflect.Message {
mi := &file_skills_grpc_service_hello_proto_msgTypes[2]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ChatRequest.ProtoReflect.Descriptor instead.
func (*ChatRequest) Descriptor() ([]byte, []int) {
return file_skills_grpc_service_hello_proto_rawDescGZIP(), []int{2}
}
func (x *ChatRequest) GetId() uint64 {
if x != nil {
return x.Id
}
return 0
}
func (x *ChatRequest) GetMessage() string {
if x != nil {
return x.Message
}
return ""
}
type ChatResponse struct {
state protoimpl.MessageState `protogen:"open.v1"`
Id uint64 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty"`
IsSuccess bool `protobuf:"varint,2,opt,name=is_success,json=isSuccess,proto3" json:"is_success,omitempty"`
Message string `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
unknownFields protoimpl.UnknownFields
sizeCache protoimpl.SizeCache
}
func (x *ChatResponse) Reset() {
*x = ChatResponse{}
mi := &file_skills_grpc_service_hello_proto_msgTypes[3]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
func (x *ChatResponse) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*ChatResponse) ProtoMessage() {}
func (x *ChatResponse) ProtoReflect() protoreflect.Message {
mi := &file_skills_grpc_service_hello_proto_msgTypes[3]
if x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use ChatResponse.ProtoReflect.Descriptor instead.
func (*ChatResponse) Descriptor() ([]byte, []int) {
return file_skills_grpc_service_hello_proto_rawDescGZIP(), []int{3}
}
func (x *ChatResponse) GetId() uint64 {
if x != nil {
return x.Id
}
return 0
}
func (x *ChatResponse) GetIsSuccess() bool {
if x != nil {
return x.IsSuccess
}
return false
}
func (x *ChatResponse) GetMessage() string {
if x != nil {
return x.Message
}
return ""
}
var File_skills_grpc_service_hello_proto protoreflect.FileDescriptor
var file_skills_grpc_service_hello_proto_rawDesc = string([]byte{
@ -154,15 +266,28 @@ var file_skills_grpc_service_hello_proto_rawDesc = string([]byte{
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0x6f, 0x33,
})
var (
@ -177,18 +302,22 @@ func file_skills_grpc_service_hello_proto_rawDescGZIP() []byte {
return file_skills_grpc_service_hello_proto_rawDescData
}
var file_skills_grpc_service_hello_proto_msgTypes = make([]protoimpl.MessageInfo, 3)
var file_skills_grpc_service_hello_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
var file_skills_grpc_service_hello_proto_goTypes = []any{
(*HelloRequest)(nil), // 0: hello.HelloRequest
(*HelloResponse)(nil), // 1: hello.HelloResponse
nil, // 2: hello.HelloRequest.ExtrasEntry
(*ChatRequest)(nil), // 2: hello.ChatRequest
(*ChatResponse)(nil), // 3: hello.ChatResponse
nil, // 4: hello.HelloRequest.ExtrasEntry
}
var file_skills_grpc_service_hello_proto_depIdxs = []int32{
2, // 0: hello.HelloRequest.extras:type_name -> hello.HelloRequest.ExtrasEntry
4, // 0: hello.HelloRequest.extras:type_name -> hello.HelloRequest.ExtrasEntry
0, // 1: hello.HelloService.Hello:input_type -> hello.HelloRequest
1, // 2: hello.HelloService.Hello:output_type -> hello.HelloResponse
2, // [2:3] is the sub-list for method output_type
1, // [1:2] is the sub-list for method input_type
2, // 2: hello.HelloService.Chat:input_type -> hello.ChatRequest
1, // 3: hello.HelloService.Hello:output_type -> hello.HelloResponse
3, // 4: hello.HelloService.Chat:output_type -> hello.ChatResponse
3, // [3:5] is the sub-list for method output_type
1, // [1:3] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
@ -205,7 +334,7 @@ func file_skills_grpc_service_hello_proto_init() {
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: unsafe.Slice(unsafe.StringData(file_skills_grpc_service_hello_proto_rawDesc), len(file_skills_grpc_service_hello_proto_rawDesc)),
NumEnums: 0,
NumMessages: 3,
NumMessages: 5,
NumExtensions: 0,
NumServices: 1,
},

13
skills/grpc/service/hello.proto
View File

@ -14,7 +14,20 @@ message HelloResponse {
string message = 1;
}
message ChatRequest {
uint64 id = 1;
string message = 2;
}
message ChatResponse {
uint64 id = 1;
bool is_success = 2;
string message = 3;
}
// grpc 接口声明
service HelloService {
rpc Hello(HelloRequest) returns(HelloResponse);
// 双向流接口
rpc Chat(stream ChatRequest) returns(stream ChatResponse);
}

37
skills/grpc/service/hello_grpc.pb.go
View File

@ -20,6 +20,7 @@ const _ = grpc.SupportPackageIsVersion9
const (
HelloService_Hello_FullMethodName = "/hello.HelloService/Hello"
HelloService_Chat_FullMethodName = "/hello.HelloService/Chat"
)
// HelloServiceClient is the client API for HelloService service.
@ -29,6 +30,8 @@ const (
// grpc 接口声明
type HelloServiceClient interface {
Hello(ctx context.Context, in *HelloRequest, opts ...grpc.CallOption) (*HelloResponse, error)
// 双向流接口
Chat(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[ChatRequest, ChatResponse], error)
}
type helloServiceClient struct {
@ -49,6 +52,19 @@ func (c *helloServiceClient) Hello(ctx context.Context, in *HelloRequest, opts .
return out, nil
}
func (c *helloServiceClient) Chat(ctx context.Context, opts ...grpc.CallOption) (grpc.BidiStreamingClient[ChatRequest, ChatResponse], error) {
cOpts := append([]grpc.CallOption{grpc.StaticMethod()}, opts...)
stream, err := c.cc.NewStream(ctx, &HelloService_ServiceDesc.Streams[0], HelloService_Chat_FullMethodName, cOpts...)
if err != nil {
return nil, err
}
x := &grpc.GenericClientStream[ChatRequest, ChatResponse]{ClientStream: stream}
return x, nil
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type HelloService_ChatClient = grpc.BidiStreamingClient[ChatRequest, ChatResponse]
// HelloServiceServer is the server API for HelloService service.
// All implementations must embed UnimplementedHelloServiceServer
// for forward compatibility.
@ -56,6 +72,8 @@ func (c *helloServiceClient) Hello(ctx context.Context, in *HelloRequest, opts .
// grpc 接口声明
type HelloServiceServer interface {
Hello(context.Context, *HelloRequest) (*HelloResponse, error)
// 双向流接口
Chat(grpc.BidiStreamingServer[ChatRequest, ChatResponse]) error
mustEmbedUnimplementedHelloServiceServer()
}
@ -69,6 +87,9 @@ type UnimplementedHelloServiceServer struct{}
func (UnimplementedHelloServiceServer) Hello(context.Context, *HelloRequest) (*HelloResponse, error) {
return nil, status.Errorf(codes.Unimplemented, "method Hello not implemented")
}
func (UnimplementedHelloServiceServer) Chat(grpc.BidiStreamingServer[ChatRequest, ChatResponse]) error {
return status.Errorf(codes.Unimplemented, "method Chat not implemented")
}
func (UnimplementedHelloServiceServer) mustEmbedUnimplementedHelloServiceServer() {}
func (UnimplementedHelloServiceServer) testEmbeddedByValue() {}
@ -108,6 +129,13 @@ func _HelloService_Hello_Handler(srv interface{}, ctx context.Context, dec func(
return interceptor(ctx, in, info, handler)
}
func _HelloService_Chat_Handler(srv interface{}, stream grpc.ServerStream) error {
return srv.(HelloServiceServer).Chat(&grpc.GenericServerStream[ChatRequest, ChatResponse]{ServerStream: stream})
}
// This type alias is provided for backwards compatibility with existing code that references the prior non-generic stream type by name.
type HelloService_ChatServer = grpc.BidiStreamingServer[ChatRequest, ChatResponse]
// HelloService_ServiceDesc is the grpc.ServiceDesc for HelloService service.
// It's only intended for direct use with grpc.RegisterService,
// and not to be introspected or modified (even as a copy)
@ -120,6 +148,13 @@ var HelloService_ServiceDesc = grpc.ServiceDesc{
Handler: _HelloService_Hello_Handler,
},
},
Streams: []grpc.StreamDesc{},
Streams: []grpc.StreamDesc{
{
StreamName: "Chat",
Handler: _HelloService_Chat_Handler,
ServerStreams: true,
ClientStreams: true,
},
},
Metadata: "skills/grpc/service/hello.proto",
}