netcore通过consul注册服务（入门二）

 

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）