gRPC搭建使用方式 | 易学教程

gRpc 官网链接

新建服务端项目

在服务端内先编写一个 .proto 文件

greet.proto

syntax = "proto3";

service Greeter {
  rpc SayHello (HelloRequest) returns (HelloReply);
}

message HelloRequest {
  string name = 1;
}

message HelloReply {
  string message = 1;
}

服务端生成 .proto 代码为 C# NutGet Install-Package Grpc.Tools

找到tools 从里面选择自己电脑的版本

把 protoc.exe 、 grpc_csharp_plugin.exe 复制出来和 .proto 文件放在一起

编写一个 .cmd 文件和 .proto 文件放在一起，插入生成代码的指令。（注意 greet.proto 这是 .proto 文件名）

protoc -I . --csharp_out . --grpc_out . --plugin=protoc-gen-grpc=grpc_csharp_plugin.exe greet.proto

点击cmd 生成会获得两个C#文件。

新建类GreeterService

并在使用客户端之前启动（启动服务端之前，要先排除与.Net 无关的.proto文件，不然直接运行会报错的）

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)
    {
        _logger.LogInformation("Saying hello to {Name}", request.Name);
        return Task.FromResult(new HelloReply 
        {
            Message = "Hello " + request.Name
        });
    }　　
}
 class Program
 {

     const int Port = 2020;

     static void Main(string[] args)
     {
         Server server = new Server
     　　 {
            Services = { Greeter.BindService(new GreeterService()) },
            Ports = { new ServerPort("127.0.0.1", 2020, ServerCredentials.Insecure) }
         };
         server.Start();
         Console.WriteLine("127.0.0.1");
         Console.WriteLine("GrpcService server listening on port " + Port);
         Console.WriteLine("任意键退出...");
         Console.ReadKey();
     }
}

新建控制台客户端项目

客户端调用服务端

namespace gRPCClient
{
    class Program
    {
        static void Main(string[] args)
        {
      
            // The port number(5001) must match the port of the gRPC server.
            Channel channel = new Channel("127.0.0.1", 2020, ChannelCredentials.Insecure);
            var client = new Greeter.GreeterClient(channel).WithHost("127.0.0.1");
            
            try
            {
                var reply = client.SayHelloAsync(new HelloRequest { Name = "Zhang San" });
                Console.WriteLine("来自" + reply.ResponseAsync.Result);

                channel.ShutdownAsync().Wait();
                Console.WriteLine("Greeting: " + reply.ResponseAsync.Result);
                Console.WriteLine("Press any key to exit...");
                Console.ReadKey();
            }
            catch (Exception ex)
            {

                throw ex;
            }
 
           
        }
    }
}

来源：oschina

链接：https://my.oschina.net/u/4323704/blog/3689271

标签

grpc

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.Net Framework