Здравствуйте.
На METANIT.COM взял пример для изучения, все вроде скопировал правильно, но получаю ошибку.
Server:
internal class Program
{
private static void Main(string[] args)
{
var builder = WebApplication.CreateBuilder(args);
// добавляем сервисы для работы с gRPC
builder.Services.AddGrpc();
var app = builder.Build();
// настраиваем обработку HTTP-запросов
app.MapGrpcService<GreeterService>();
app.MapGet("/", () => "Communication with gRPC endpoints must be made through a gRPC client...");
app.Run();
}
}
namespace ProtoBuild.Services
{
public class GreeterService : Greeter.GreeterBase
{
private readonly ILogger<GreeterService> _logger;
public GreeterService(ILogger<GreeterService> logger)
{
_logger = logger;
}
public override Task<HelloReply> SayHello(HelloRequest request, ServerCallContext context)
{
return Task.FromResult(new HelloReply
{
Message = "Hello " + request.Name
});
}
}
}
Ptoto
// 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 java_multiple_files = true;
//option java_package = "io.grpc.examples.helloworld";
//option java_outer_classname = "HelloWorldProto";
//option objc_class_prefix = "HLW";
option csharp_namespace = "ProtoBuild";
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;
}
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<None Remove="Protos\helloworld.proto" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Google.Protobuf" Version="3.26.1" />
<PackageReference Include="Grpc.AspNetCore.Server" Version="2.62.0" />
<PackageReference Include="Grpc.Net.Client" Version="2.62.0" />
<PackageReference Include="Grpc.Tools" Version="2.62.0">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
</ItemGroup>
<ItemGroup>
<Protobuf Include="Protos\greet.proto" GrpcServices="Server" />
</ItemGroup>
</Project>
Client:
using Grpc.Net.Client;
using ProtoBuildClient;
internal class Program
{
private static async Task Main(string[] args)
{
// создаем канал для обмена сообщениями с сервером
// параметр - адрес сервера gRPC
using var channel = GrpcChannel.ForAddress("http://localhost:5000");
// создаем клиент
var client = new Greeter.GreeterClient(channel);
Console.Write("Введите имя: ");
string? name = Console.ReadLine();
// обмениваемся сообщениями с сервером
var reply = await client.SayHelloAsync(new HelloRequest { Name = name });
Console.WriteLine($"Ответ сервера: {reply.Message}");
Console.ReadKey();
}
}
// 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 java_multiple_files = true;
//option java_package = "io.grpc.examples.helloworld";
//option java_outer_classname = "HelloWorldProto";
//option objc_class_prefix = "HLW";
option csharp_namespace = "ProtoBuildClient";
//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;
}
Server сидит на порту 5000
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Google.Protobuf" Version="3.26.1" />
<PackageReference Include="Grpc.Net.Client" Version="2.62.0" />
<PackageReference Include="Grpc.Tools" Version="2.62.0">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
</ItemGroup>
<ItemGroup>
<Protobuf Include="Protos\greet.proto" GrpcServices="Client" />
</ItemGroup>
</Project>
Ошибка:
Unhandled exception. Grpc.Core.RpcException: Status(StatusCode="Internal", Detail="Error starting gRPC call. HttpRequestException: The HTTP/2 server closed the connection.
В Visual Studio тоже все собралось. Помогите пожалуйста, мозг уже кипит.
