微服务（入门二）：netcore通过consul注册服务 - 好文

基础准备

1.创建asp.net core Web 应用程序选择Api

2.appsettings.json 配置consul服务器地址，以及本机ip和端口号信息

{ "Logging": { "LogLevel": { "Default": "Warning" } }, "Consul": { "IP": "
127.0.0.1", "Port": "8500" }, "Service": { "Name": "zyz" }, "ip": "localhost", "
port": "6655", "AllowedHosts": "*" }

3.程序入口(program.cs)配置useurls，ip和port从配置文件（或者命令行中）读取（命令行启动方式:dotnet
ConsulServer.dll --ip localhost --port 8644）
using System; using System.Collections.Generic; using System.IO; using
System.Linq;using System.Threading.Tasks; using Microsoft.AspNetCore; using
Microsoft.AspNetCore.Hosting;using Microsoft.Extensions.Configuration; using
Microsoft.Extensions.Logging;namespace ConsulServer { public class Program {
public static void Main(string[] args) {
CreateWebHostBuilder(args).Build().Run(); }public static IWebHostBuilder
CreateWebHostBuilder(string[] args) { var config = new
ConfigurationBuilder().AddCommandLine(args) .Build();//获取配置信息 return
WebHost.CreateDefaultBuilder(args) .UseUrls($"http://{ config["ip"]}:{config["
port"]}")//配置ip地址和端口地址 .UseStartup<Startup>(); } } }

4.配置基础数据，并且调用注册consul接口
using System; using System.Collections.Generic; using System.Linq; using
System.Threading.Tasks;using Consul; using ConsulServer.ConsulApi; using
ConsulServer.entity;using Microsoft.AspNetCore.Builder; using
Microsoft.AspNetCore.Hosting;using Microsoft.AspNetCore.Mvc; using
Microsoft.Extensions.Configuration;using
Microsoft.Extensions.DependencyInjection;using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options; namespace ConsulServer { public class
Startup {public Startup(IConfiguration configuration) { Configuration =
configuration; }public IConfiguration Configuration { get; } // This method
gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services) {
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1); }//
This method gets called by the runtime. Use this method to configure the HTTP
request pipeline. public void Configure(IApplicationBuilder app,
IHostingEnvironment env, IApplicationLifetime lifetime) {if
(env.IsDevelopment()) { app.UseDeveloperExceptionPage(); }////配置信息单例 //
ConfigSingleton.setConfigSingleton(Configuration); app.UseMvc(); ConsulEntity
consulEntity= new ConsulEntity { ip = Configuration["ip"], port = int
.Parse(Configuration["port"] ), ServiceName = "zyz", ConsulIP = Configuration["
Consul:IP"], ConsulPort = Convert.ToInt32(Configuration["Consul:Port"]) };
app.RegisterConsul(lifetime, consulEntity); } } }

5.配置注册信息
using Consul; using ConsulServer.entity; using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting; using Microsoft.Extensions.Configuration;
using System; using System.Collections.Generic; using System.Linq; using
System.Threading.Tasks;namespace ConsulServer.ConsulApi { /// <summary> ///
consul/// </summary> public static class AppBuilderExtensions { /// <summary>
/// 注册consul /// </summary> /// <param name="app"></param> /// <param
name="lifetime"></param> /// <param name="serviceEntity"></param> ///
<returns></returns> public static IApplicationBuilder RegisterConsul(this
IApplicationBuilder app, IApplicationLifetime lifetime, ConsulEntity
serviceEntity) {//consul地址 Action<ConsulClientConfiguration> configClient =
(consulConfig) => { consulConfig.Address = new Uri($"
http://{serviceEntity.ConsulIP}:{ serviceEntity.ConsulPort}");
consulConfig.Datacenter= "dc1"; }; //建立连接 var consulClient = new
ConsulClient(configClient);var httpCheck = new AgentServiceCheck() {
DeregisterCriticalServiceAfter= TimeSpan.FromSeconds(5),//服务启动多久后注册 Interval =
TimeSpan.FromSeconds(10),//健康监测 HTTP = string.Format($"
http://{serviceEntity.ip}:{serviceEntity.port}/api/health"),//心跳检测地址 Timeout =
TimeSpan.FromSeconds(5) }; //注册 var registrtion = new
AgentServiceRegistration() { Checks= new[] { httpCheck }, ID = "zyzService" +
Guid.NewGuid().ToString(),//服务编号不可重复 Name = serviceEntity.ServiceName,//服务名称
Address = serviceEntity.ip,//ip地址 Port = serviceEntity.port//端口 }; //注册服务
consulClient.Agent.ServiceRegister(registrtion);return app; } } }
6.以命令行启动程序查看consul（dotnet ConsulServer.dll --ip localhost --port 8644）

快速入口：微服务（入门一）：netcore安装部署consul
<https://www.cnblogs.com/zhengyazhao/p/10749620.html>

快速入口：微服务（入门二）：netcore通过consul注册服务
<https://www.cnblogs.com/zhengyazhao/p/10749620.html>

快速入口：微服务（入门三）：netcore ocelot api网关结合consul服务发现
<https://www.cnblogs.com/zhengyazhao/p/10757636.html>

快速入口：微服务（入门四）：identityServer的简单使用（客户端授权）
<https://www.cnblogs.com/zhengyazhao/p/10769723.html>

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