Overt.Core.Grpc

|-Config                                        配置模型
|
|-Client                                        客户端功能实现，服务发现
|
|-dllconfigs                                    配置文件保存
|
|-Intercept                                     拦截器
|-|-IServerTracer                               服务端拦截器接口
|-|-IClientTracer                               客户端拦截器接口
|  
|-Manager                                       启动、客户端调用类
|-|-GrpcServiceManager.cs                       服务端启动类
|-|-GrpcClientManager.cs                        客户端获取Client类
|
|-Server                                        服务端
|
|-GrpcServiceCollectionExtensions.cs            netcore注入

Consul 0.7.2.6  
Google.Protobuf 3.8.0
Grpc 1.21.0
Microsoft.Extensions.Configuration.Json 2.0.0
Microsoft.Extensions.Options.ConfigurationExtensions 2.0.0

Consul 0.7.2.6  
Google.Protobuf 3.8.0
Grpc 1.21.0

Install-Package Overt.Core.Grpc -Version 1.0.3.1

{
  "GrpcServer": {
    "Service": {
      "Name": "OvertGrpcServiceApp",                    // 服务名称使用服务名称去除点：OvertGrpcServiceApp
      "Host": "service.g.lan",                          // 专用注册的域名 （可选）格式：ip[:port=default]
      "HostEnv": "serviceaddress",                      // 获取注册地址的环境变量名字（可选，优先）环境变量值格式：ip[:port=default]
      "Port": 10001,                                    // 端口自定义
      "Consul": {
        "Path": "dllconfigs/consulsettings.json"        // Consul路径
      }
    }
  }
}

// 添加section
<configSections>
  <section name="grpcServer" type="Overt.Core.Grpc.GrpcServerSection, Overt.Core.Grpc" />
</configSections>

// 添加节点
<grpcServer>
  <service name="OvertGrpcServiceApp" port="10005" host="专用注册的域名（可选）格式：ip[:port=default]" hostEnv="获取注册地址的环境变量名字（可选）环境变量值格式：ip[:port=default]">
    <registry>
      <consul path="dllconfigs/Consul.config" />
    </registry>
  </service>
</grpcServer>

{
  "GrpcClient": {
    "Service": {
      "Name": "grpcservice",                        // 服务名称与服务端保持一致
      "MaxRetry":  0,                               // 最大可重试次数，默认不重试
      "Discovery": {
        "EndPoints": [                              // 单点模式
          {
            "Host": "127.0.0.1",
            "Port": 10001
          }
        ],
        "Consul": {                                 // Consul集群,集群优先原则
          "Path": "dllconfigs/consulsettings.json"
        }
      }
    }
  }
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="grpcClient" type="Overt.Core.Grpc.GrpcClientSection, Overt.Core.Grpc"/>
  </configSections>

  <grpcClient>
    <service name="" maxRetry="0">
      <discovery>
        <server>
          <endpoint host="" port=""></endpoint>
          <endpoint host="" port=""></endpoint>
        </server>
        <consul path="dllconfigs/Consul.config"></consul>
      </discovery>
    </service>
  </grpcClient>
</configuration>

{
  "ConsulServer": {
    "Service": {
      "Address": "http://consul.g.lan"     // 默认8500端口
    }
  }
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="consulServer" type="Overt.Core.Grpc.ConsulServerSection, Overt.Core.Grpc"/>
  </configSections>
  <consulServer>
    <service address="http://consul.g.lan"></service>
  </consulServer>
</configuration>

services.AddSingleton<GrpcExampleService.GrpcExampleServiceBase, GrpcExampleServiceImpl>();          // Grpc服务的实现
services.AddSingleton<IHostedService, GrpcExampleHostedService>();                                   // Grpc服务启动服务类：如下
services.AddGrpcTracer<ConsoleTracer>();                                                             // Grpc注入拦截器，继承IServerTracer（可选）

using Microsoft.Extensions.Hosting;
using Overt.Core.Grpc;
using Overt.GrpcExample.Service.Grpc;
using System.Threading;
using System.Threading.Tasks;

namespace Overt.GrpcService.App
{
    public class GrpcService : IHostedService
    {
        GrpcExampleService.GrpcExampleServiceBase _grpcServiceBase;
        IServerTracer _tracer;
        public GrpcService(GrpcExampleService.GrpcExampleServiceBase serviceBase, IServerTracer tracer)         // 依赖注入Grpc服务基础类
        {
            _serviceBase = serviceBase;
            _tracer = tracer;
        }


        public Task StartAsync(CancellationToken cancellationToken)
        {
            return Task.Factory.StartNew(() =>
            {
                GrpcServiceManager.Start(GrpcExampleService.BindService(_serviceBase), _tracer);
            }, cancellationToken);
        }

        public Task StopAsync(CancellationToken cancellationToken)
        {
            return Task.Factory.StartNew(() =>
            {
                GrpcServiceManager.Stop();
            }, cancellationToken);
        }
    }
}

原因：服务启动的时候是一个单例，那么所有服务之下的全部是单实例，而数据层需要使用多实例

// 只注入 IServiceProvider
IServiceProvider _provider;
public GrpcExampleServiceImpl(IServiceProvider provider)
{
    _provider = provider;
}

// 其他利用provider即时获取
using(var scope = _provider.CreateSocpe())
{
    var _userService = scope.ServiceProvider.GetService<IUserService>();
}

using Grpc.Core;
using Overt.Core.Grpc;
using Overt.Log;
using System;

namespace Overt.GrpcService
{
    public class MainService
    {
        public MainService()
        {
            
        }
        public void Start(string serviceName)               // 启动服务
        {
            GrpcServiceManager.Start(Library.GrpcService.BindService(new GrpcServiceImpl()), tracer: new ConsoleTracer(), whenException: (ex) =>
            {
                LogHelper.Info("", ex);
            });
        }

        public void Stop(string serviceName)                // 停止服务
        {
            GrpcServiceManager.Stop();
        }
        public void ShutDown(string serviceName)
        {
            GrpcServiceManager.Stop();
        }
    }
}

// 注入Grpc客户端
services.AddGrpcClient();

// 自定义配置文件 / 默认使用命名空间.dll.json
services.Configure<GrpcClientOptions<GrpcExampleServiceClient>>((cfg) =>
{
    cfg.ConfigPath = "dllconfig/Overt.GrpcExample.Service.Grpc.dll.json";  // 可不传递
});


// 获取注入的对象
IGrpcClient<GrpcExampleServiceClient> _grpcClient;
public IndexModel(IGrpcClient<GrpcExampleServiceClient> grpcClient)
{
    _grpcClient = grpcClient;
}


var res = _grpcClient.Client.Ask(new Service.Grpc.AskRequest() { Key = "abc" });

using Grpc.Core;
using Overt.Core.Grpc;
using Overt.Core.Grpc.Intercept;
using System;
using System.Collections.Concurrent;
using System.IO;
using __GrpcService = Overt.GrpcExample.Service.Grpc.GrpcExampleService;
namespace Overt.GrpcExample.Service.Grpc
{
#if NET45 || NET46 || NET47
    public class ClientManager
    {
        public static IClientTracer Tracer { get; set; } = default(IClientTracer);
        private static string DefaultConfigPath { get; set; } = "dllconfigs/Overt.GrpcExample.Service.Grpc.dll.config";
        public static __GrpcService.GrpcExampleServiceClient Instance
        {
            get
            {
                return ClientManager<__GrpcService.GrpcExampleServiceClient>.Instance;
            }
        }
        private static readonly ConcurrentDictionary<Type, string> configMap = new ConcurrentDictionary<Type, string>();
        public static void Configure<T>(string configPath) { configMap.AddOrUpdate(typeof(T), configPath, (t, s) => configPath); }
        public static string GetConfigure<T>() { if (configMap.TryGetValue(typeof(T), out string configPath)) return configPath; return DefaultConfigPath; }
    }
    public class ClientManager<T> : ClientManager where T : ClientBase
    {
        public static new T Instance
        {
            get
            {
                var configPath = GetConfigure<T>();
                var abConfigPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, configPath);
                return GrpcClientManager<T>.Get(abConfigPath, Tracer);
            }
        }
    }
#endif
}

// 自定义配置文件 / 默认使用命名空间.dll.json / 在主进程入口进行配置T为服务Client
ClientManger.Configure<T>("dllconfig/abc.config");

ClientManager.Instance.[Method]

// T为服务Client
ClientManager<T>.Instance.[Method]

Overt.Core.Grpc.dll
Consul.dll
Grpc.Core.dll
Google.Protobuf.dll
runtime/*
libgrpc_*
grpc_csharp_*
App.config/Web.config

Overt.Core.Grpc.dll
Consul.dll
Grpc.Core.dll
Google.Protobuf.dll
runtime/*
libgrpc_*
grpc_csharp_*
App.config/Web.config