Hummingbird

[toc]

1. 项目简介

项目开发常用脚手架

2. 功能概要

• 分布式锁
  • 基于Redis
• 分布式缓存
  • 基于Redis
• 分布式Id
  • 基于Snowfake
• 分布式追踪 Opentracing
  • 基于Jaeger
• 消息总线
  • 消息队列
    • 基于Rabbitmq
    • 基于Kafka
  • 消息可靠性保证
    • 基于MySql
    • 基于SqlServer
• 健康检查
  • Mongodb 健康检查
  • MySql 健康检查
  • SqlServer 健康检查
  • Redis 健康检查
  • Rabbitmq 健康检查
  • Kafka 健康检查
• 负载均衡
  • 随机负载均衡
  • 轮训负载均衡
• 配置中心
  • 基于Apollo配置中心
  • 基于Nacos配置中心
• 服务注册
  • 基于Consul服务注册和发现
  • 基于Nacos服务注册和发现
• 服务调用
  • 基于HTTP弹性客户端(支持：服务发现、负载均衡、超时、重试、熔断)
  • 基于HTTP非弹性客户端（支持：服务发现、负载均衡）
• Canal 数据集成
  • 输出到控制台
  • 输出到Rabbitmq(待实现)
  • 输出到Kafka(待实现)

3. 项目中如何使用

3.1 分布式锁

步骤1：安装Nuget包

Install-Package Hummingbird.Extensions.DistributedLock -Version 1.15.0

步骤2：配置连接信息

  public class Startup
  {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHummingbird(hb =>
            {
                hb.AddDistributedLock(option =>
                 {
                     option.WithDb(0);
                     option.WithKeyPrefix("");
                     option.WithPassword("123456");
                     option.WithServerList("127.0.0.1:6379");
                     option.WithSsl(false);
                 });               
            });
        }
    }

步骤3：测试分布式锁

    using Microsoft.AspNetCore.Mvc;
    using System;
    using System.Threading.Tasks;

    [Route("api/[controller]")]
    public class DistributedLockController : Controller
    {  private readonly IDistributedLock distributedLock;
        public DistributedLockController(IDistributedLock distributedLock)
        {
            this.distributedLock = distributedLock;
        } 

        [HttpGet]
        [Route("Test")]
        public async Task<string> Test()
        {
            var lockName = "name";
            var lockToken = Guid.NewGuid().ToString("N");
            try
            {
                if (distributedLock.Enter(lockName, lockToken, TimeSpan.FromSeconds(30)))
                {
                    // do something
                    return "ok";
                }
                else
                {
                    return "error";
                }
            }
            finally
            {
                distributedLock.Exit(lockName, lockToken);
            }
        }

    }

3.2 分布式缓存

步骤1：安装Nuget包

Install-Package Hummingbird.Extensions.Cacheing -Version 1.15.0

步骤2：设置缓存连接信息

    public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
          
            services.AddHummingbird(hb =>
            {
                hb.AddCacheing(option =>
                {
                    option.WithDb(0);
                    option.WithKeyPrefix("");
                    option.WithPassword("123456");
                    option.WithReadServerList("192.168.109.44:6379");
                    option.WithWriteServerList("192.168.109.44:6379");
                    option.WithSsl(false);
                })

            });

        }
    }

步骤3：测试Redis缓存

    using Hummingbird.Extensions.Cacheing;
    using Microsoft.AspNetCore.Mvc;
    using System.Threading.Tasks;

    [Route("api/[controller]")]
    public class CacheingController : Controller
    {
        private readonly ICacheManager cacheManager;
        public CacheingController(ICacheManager cacheManager)
        {
            this.cacheManager = cacheManager;
        }

        [HttpGet]
        [Route("Test")]
        public async Task<string> Test()
        {
            var cacheKey = "cacheKey";
            var cacheValue = cacheManager.StringGet<string>(cacheKey);
            if(cacheValue == null)
            {
                cacheValue = "value";
                cacheManager.StringSet(cacheKey, cacheValue);
            }
            return cacheValue;
        }

3.3 分布式Id

步骤1： 安装Nuget包

  Install-Package Hummingbird.Extensions.UidGenerator -Version 1.15.5
  Install-Package Hummingbird.Extensions.UidGenerator.ConsulWorkIdStrategy -Version 1.15.7

步骤2：配置使用Snowfake算法生产唯一Id

  public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {          
            services.AddHummingbird(hb =>
            {
                hb.AddSnowflakeUniqueIdGenerator(workIdBuilder =>
                {
                    workIdBuilder.CenterId = 0; // 设置CenterId
                    workIdBuilder.AddConsulWorkIdCreateStrategy("Example"); //设置使用Consul创建WorkId
                })
            });
        }
    }

步骤3：测试Id生成

    using Hummingbird.Extensions.UidGenerator;
    using Microsoft.AspNetCore.Mvc;
    using System.Threading.Tasks;

   [Route("api/[controller]")]
    public class UniqueIdController : Controller
    {
        private readonly IUniqueIdGenerator uniqueIdGenerator;

        public UniqueIdController(IUniqueIdGenerator uniqueIdGenerator)
        {
            this.uniqueIdGenerator = uniqueIdGenerator;
        }

        [HttpGet]
        [Route("Test")]
        public async Task<long> Test()
        {
            return uniqueIdGenerator.NewId();
        }
    }

3.4 分布式追踪

步骤1：安装Nuget包

Install-Package Hummingbird.Extensions.OpenTracing -Version 1.15.0
Install-Package Hummingbird.Extensions.OpenTracking.Jaeger -Version 1.15.0

步骤2： 创建tracing.json 配置

 {
  "Tracing": {
    "Open": false,
    "SerivceName": "SERVICE_EXAMPLE",
    "FlushIntervalSeconds": 15,
    "SamplerType": "const",
    "LogSpans": true,
    "AgentPort": "5775", //代理端口
    "AgentHost": "dev.jaeger-agent.service.consul", //代理地址
    "EndPoint": "http://dev.jaeger-collector.service.consul:14268/api/traces"
  }
}

步骤3：添加tracing.json 配置依赖

    public class Program
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()                
                .ConfigureAppConfiguration((builderContext, config) =>
                  {
                      config.SetBasePath(Directory.GetCurrentDirectory());
                      config.AddJsonFile("tracing.json");
                      config.AddEnvironmentVariables();
                  })
           .ConfigureLogging((hostingContext, logging) =>
           {
               logging.ClearProviders();
        
           })
           .Build();
    }

步骤3： 配置OpenTracing基于Jaeger实现

   public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHummingbird(hb =>
            {
                hb.AddOpenTracing(builder => {
                    builder.AddJaeger(Configuration.GetSection("Tracing"));
                })
            });
        }
    }

步骤4：测试手动埋点日志

    using Microsoft.AspNetCore.Mvc;
    using System.Threading.Tasks;

    [Route("api/[controller]")]
    public class OpenTracingController : Controller
    {       
        [HttpGet]
        [Route("Test")]
        public async Task Test()
        {
            using (Hummingbird.Extensions.Tracing.Tracer tracer = new Hummingbird.Extensions.Tracing.Tracer("Test"))
            {
                tracer.SetTag("tag1", "value1");
                tracer.SetError();
                tracer.Log("key1", "value1");

            }
        }
    }

3.5 消息总线

步骤1：安装Nuget包

Install-Package Hummingbird.Extensions.EventBus -Version 1.15.0
Install-Package Hummingbird.Extensions.EventBus.RabbitMQ -Version 1.15.3
Install-Package Hummingbird.Extensions.EventBus.MySqlLogging -Version 1.15.3

步骤2：创建消息消费端，消息处理程序

  using Hummingbird.Extensions.EventBus.Abstractions;
  using System.Collections.Generic;
  using System.Threading;
  using System.Threading.Tasks;

  public class TestEvent
  {
        public string EventType { get; set; }
  }

  public class TestEventHandler1 : IEventHandler<TestEvent>
  {
        public Task<bool> Handle(TestEvent @event, Dictionary<string, object> headers, CancellationToken cancellationToken)
        {
            //执行业务操作1并返回操作结果
            return Task.FromResult(true);
        }
    }

    public class TestEventHandler2 : IEventHandler<TestEvent>
    {
        public Task<bool> Handle(TestEvent @event, Dictionary<string, object> headers, CancellationToken cancellationToken)
        {
            //执行业务操作2并返回操作结果
            return Task.FromResult(true);
        }
    }

步骤2：创建消息生产端，消息发送程序

    using Hummingbird.Extensions.EventBus.Abstractions;
    using Hummingbird.Extensions.EventBus.Models;
    using Microsoft.AspNetCore.Mvc;
    using MySql.Data.MySqlClient;
    using System.Collections.Generic;
    using System.Threading.Tasks;
    using Dapper;
    using System.Linq;
    using System.Threading;
    [Route("api/[controller]")]
    public class MQPublisherTestController : Controller
    {
        private readonly IEventLogger eventLogger;
        private readonly IEventBus eventBus;

        public MQPublisherTestController(
            IEventLogger eventLogger,
            IEventBus eventBus)
        {
            this.eventLogger = eventLogger;
            this.eventBus = eventBus;
        }

        /// <summary>
        ///  无本地事务发布消息，消息直接写入队列
        /// </summary>
        [HttpGet]
        [Route("Test1")]
        public async Task<string> Test1()
        {
            var events = new List<EventLogEntry>() {
                   new EventLogEntry("TestEvent",new Events.TestEvent() {
                      EventType="Test1"
                   }),
                   new EventLogEntry("TestEvent",new {
                        EventType="Test1"
                   }),
            };

            var ret=  await  eventBus.PublishAsync(events);

            return ret.ToString();
        }

        /// <summary>
        /// 有本地事务发布消息，消息落盘到数据库确保事务完整性
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        [Route("Test2")]
        public async Task<string> Test2()
        {   
            var connectionString = "Server=localhost;Port=63307;Database=test; User=root;Password=123456;pooling=True;minpoolsize=1;maxpoolsize=100;connectiontimeout=180";

            using (var sqlConnection = new MySqlConnection(connectionString))
            {
                await sqlConnection.OpenAsync();
                
                var sqlTran = await sqlConnection.BeginTransactionAsync();

                var events = new List<EventLogEntry>() {
                   new EventLogEntry("TestEvent",new Events.TestEvent() {
                      EventType="Test2"
                   }),
                   new EventLogEntry("TestEvent",new {
                        EventType="Test2"
                   }),
            };

                //保存消息至业务数据库，保证写消息和业务操作在一个事务
                await eventLogger.SaveEventAsync(events, sqlTran);

                var ret = await sqlConnection.ExecuteAsync("you sql code");

                return ret.ToString();
            }
        }

        /// <summary>
        /// 有本地事务发布消息，消息落盘到数据库，从数据库重新取出消息发送到队列
        /// </summary>
        /// <returns></returns>
        [HttpGet]
        [Route("Test3")]
        public async Task Test3()
        {   
            //获取1000条没有发布的事件
            var unPublishedEventList = eventLogger.GetUnPublishedEventList(1000);
            //通过消息总线发布消息
            var ret = await eventBus.PublishAsync(unPublishedEventList);

            if (ret)
            {
                await eventLogger.MarkEventAsPublishedAsync(unPublishedEventList.Select(a => a.EventId).ToList(), CancellationToken.None);
            }
            else
            {
                await eventLogger.MarkEventAsPublishedFailedAsync(unPublishedEventList.Select(a => a.EventId).ToList(), CancellationToken.None);
            }
        }
    }

步骤3： 配置使用Rabbitmq消息队列和使用Mysql消息持久化

   public class Startup
    {
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHummingbird(hb =>
            {
                hb.AddEventBus((builder) =>
                {
                    //使用Rabbitmq 消息队列
                    builder.AddRabbitmq(factory =>
                    {
                        factory.WithEndPoint("192.168.109.2,192.168.109.3", "5672"));
                        factory.WithAuth("guest", "guest");
                        factory.WithExchange("/");
                        factory.WithReceiver(PreFetch: 10, ReceiverMaxConnections: 1, ReveiverMaxDegreeOfParallelism: 1);
                        factory.WithSender(10);
                    });
                    //使用Kafka 消息队列
                    //builder.AddKafka(option =>
                    //{
                    //    option.WithSenderConfig(new Confluent.Kafka.ProducerConfig()
                    //    {

                    //        EnableDeliveryReports = true,
                    //        BootstrapServers = "192.168.78.29:9092,192.168.78.30:9092,192.168.78.31:9092",
                    //        // Debug = "msg" //  Debug = "broker,topic,msg"
                    //    });

                    //    option.WithReceiverConfig(new Confluent.Kafka.ConsumerConfig()
                    //    {
                    //        // Debug= "consumer,cgrp,topic,fetch",
                    //        GroupId = "test-consumer-group",
                    //        BootstrapServers = "192.168.78.29:9092,192.168.78.30:9092,192.168.78.31:9092",
                    //    });
                    //    option.WithReceiver(1, 1);
                    //    option.WithSender(10, 3, 1000 * 5, 50);
                    //});

                    // 基于MySql 数据库 进行消息持久化，当存在分布式事务问题时
                    builder.AddMySqlEventLogging(o => {
                        o.WithEndpoint("Server=localhost;Port=63307;Database=test; User=root;Password=123456;pooling=True;minpoolsize=1;maxpoolsize=100;connectiontimeout=180");
                    });

                    // 基于SqlServer 数据库 进行消息持久化，当存在分布式事务问题时
                    //builder.AddSqlServerEventLogging(a =>
                    //{
                    //     a.WithEndpoint("Data Source=localhost,63341;Initial Catalog=test;User Id=sa;Password=123456");
                    //});
                 
                })
             

            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            var eventBus = app.ApplicationServices.GetRequiredService<IEventBus>();
            var logger = app.ApplicationServices.GetRequiredService<ILogger<IEventLogger>>();

            app.UseHummingbird(humming =>
            {
              
                humming.UseEventBus(sp =>
                {
                    sp.UseSubscriber(eventbus =>
                    {
                        eventbus.Register<TestEvent, TestEventHandler1>("TestEventHandler1", "TestEvent");
                        eventbus.Register<TestEvent, TestEventHandler2>("TestEventHandler2", "TestEvent");
   
                        //订阅消息
                        eventbus.Subscribe((Messages) =>
                        {
                            foreach (var message in Messages)
                            {
                                logger.LogDebug($"ACK: queue {message.QueueName} route={message.RouteKey} messageId:{message.MessageId}");
                            }

                        }, async (obj) =>
                        {                         
                            foreach (var message in obj.Messages)
                            {
                                logger.LogError($"NAck: queue {message.QueueName} route={message.RouteKey} messageId:{message.MessageId}");
                            }

                            //消息消费失败执行以下代码
                            if (obj.Exception != null)
                            {
                                logger.LogError(obj.Exception, obj.Exception.Message);
                            }

                            // 消息等待5秒后重试，最大重试次数3次
                            var events = obj.Messages.Select(message => message.WaitAndRetry(a => 5,3)).ToList();

                            // 消息写到重试队列
                            var ret = !(await eventBus.PublishAsync(events));

                            return ret;
                        });
                    });
                });

            });

        }
    }

3.6 健康检查

步骤1： 安装Nuget包

Install-Package Hummingbird.Extensions.HealthChecks -Version 1.15.0
Install-Package Hummingbird.Extensions.HealthChecks.Redis -Version 1.15.0
Install-Package Hummingbird.Extensions.HealthChecks.Rabbitmq -Version 1.15.0
Install-Package Hummingbird.Extensions.HealthChecks.MySql -Version 1.15.0
Install-Package Hummingbird.Extensions.HealthChecks.SqlServer -Version 1.15.0

步骤2： 配置健康检查Endpoint

    public class Program
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();           
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .UseHealthChecks("/healthcheck")
                .ConfigureAppConfiguration((builderContext, config) =>
                  {
                      config.SetBasePath(Directory.GetCurrentDirectory());                 
                      config.AddEnvironmentVariables();
                  })
           .ConfigureLogging((hostingContext, logging) =>
           {
               logging.ClearProviders();
        
           })
          .Build();
    }

步骤3： 配置监控检查项

    public class Startup
    {
        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.AddHealthChecks(checks =>
            {
                checks.WithDefaultCacheDuration(TimeSpan.FromSeconds(5));
                checks.AddMySqlCheck("mysql", "Server=localhost;Port=63307;Database=test; User=root;Password=123456;pooling=True;minpoolsize=1;maxpoolsize=100;connectiontimeout=180;SslMode=None");
                checks.AddSqlCheck("sqlserver", "Data Source=localhost,63341;Initial Catalog=test;User Id=sa;Password=123456");
                checks.AddRedisCheck("redis", "localhost:6379,password=123456,allowAdmin=true,ssl=false,abortConnect=false,connectTimeout=5000");
                checks.AddRabbitMQCheck("rabbitmq", factory =>
                {
                    factory.WithEndPoint("192.168.109.2,192.168.109.3","5672"));
                    factory.WithAuth("guest", "guest");
                    factory.WithExchange("/");
                });
            });
        }
    }

3.7 服务注册 + 服务发现 + 服务HTTP调用

3.7.1 基于Consul

步骤1： 安装Nuget包

Install-Package Hummingbird.DynamicRoute -Version 1.15.1
Install-Package Hummingbird.LoadBalancers -Version 1.15.0
Install-Package Hummingbird.Extensions.DynamicRoute.Consul -Version 1.15.5
Install-Package Hummingbird.Extensions.Resilience.Http -Version 1.15.0

步骤2：配置 appsettings.json

{
  "SERVICE_REGISTRY_ADDRESS": "localhost", // 注册中心地址
  "SERVICE_REGISTRY_PORT": "8500", //注册中心端口
  "SERVICE_SELF_REGISTER": true, //自注册开关打开
  "SERVICE_NAME": "SERVICE_EXAMPLE", //服务名称
  "SERVICE_ADDRESS": "",
  "SERVICE_PORT": "80",
  "SERVICE_TAGS": "test",
  "SERVICE_REGION": "DC1",
  "SERVICE_80_CHECK_HTTP": "/healthcheck",
  "SERVICE_80_CHECK_INTERVAL": "15",
  "SERVICE_80_CHECK_TIMEOUT": "15",
  "SERVICE_CHECK_TCP": null,
  "SERVICE_CHECK_SCRIPT": null,
  "SERVICE_CHECK_TTL": "15",
  "SERVICE_CHECK_INTERVAL": "5",
  "SERVICE_CHECK_TIMEOUT": "5"
}

步骤3：添加appsettings.json 配置依赖

    public class Program
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()                
                .ConfigureAppConfiguration((builderContext, config) =>
                  {
                      config.SetBasePath(Directory.GetCurrentDirectory());
                      config.AddJsonFile("appsettings.json");
                      config.AddEnvironmentVariables();
                  })
           .ConfigureLogging((hostingContext, logging) =>
           {
               logging.ClearProviders();
        
           })
           .Build();
    }

步骤4：服务注册到Consul并配置弹性HTTP客户端

    public class Startup
    {

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHummingbird(hummingbird =>
            {
                hummingbird                
                // 服务注册到Consul
                .AddConsulDynamicRoute(Configuration, s =>
                 {
                     s.AddTags("version=v1");
                 })
                 // 设置弹性HTTP客户端（服务发现、超时、重试、熔断）
                .AddResilientHttpClient((orign, option) =>
                 {
                     var setting = Configuration.GetSection("HttpClient");

                     if (!string.IsNullOrEmpty(orign))
                     {
                         var orginSetting = Configuration.GetSection($"HttpClient:{orign.ToUpper()}");
                         if(orginSetting.Exists())
                         {
                             setting = orginSetting;
                         }
                     }

                     option.DurationSecondsOfBreak = int.Parse(setting["DurationSecondsOfBreak"]);
                     option.ExceptionsAllowedBeforeBreaking = int.Parse(setting["ExceptionsAllowedBeforeBreaking"]);
                     option.RetryCount = int.Parse(setting["RetryCount"]);
                     option.TimeoutMillseconds = int.Parse(setting["TimeoutMillseconds"]);

                 });
               
            });
        }
    }

步骤5：测试HTTP Client

    using Hummingbird.Extensions.Resilience.Http;
    using Microsoft.AspNetCore.Mvc;
    using System.Threading;
    using System.Threading.Tasks;
    [Route("api/[controller]")]
    public class HttpClientTestController : Controller
    {
        private readonly IHttpClient httpClient;
        public HttpClientTestController(IHttpClient httpClient)
        {
            this.httpClient = httpClient;
        }
      

        [HttpGet]
        [Route("Test1")]
        public async Task<string> Test1()
        {
            return await httpClient.GetStringAsync("http://localhost:5001/healthcheck");
        }

        [HttpGet]
        [Route("Test2")]
        public async Task<string> Test2()
        {
            return await (await httpClient.PostAsync(
                uri: "http://{example}/healthcheck",
                item: new { },
                authorizationMethod: null, 
                authorizationToken: null,
                dictionary: null,
                cancellationToken: CancellationToken.None)).Content.ReadAsStringAsync();
        }

    }

3.7.2 基于Nacos

步骤1： 安装Nuget包

Install-Package Hummingbird.DynamicRoute -Version 1.17.7
Install-Package Hummingbird.LoadBalancers -Version 1.17.7
Install-Package Hummingbird.Extensions.DynamicRoute.Nacos -Version 1.17.7
Install-Package Hummingbird.Extensions.Resilience.Http -Version 1.17.7

步骤2：配置 appsettings.json

{
  "Nacos": {
    "EndPoint": "",
    "ServerAddresses": [ "http://localhost:8848" ],
    "DefaultTimeOut": 15000,
    "Namespace": "public",
    "ListenInterval": 1000,
    "ServiceName": "example",
    "GroupName": "DEFAULT_GROUP",
    "ClusterName": "DEFAULT",
    "Ip": "",
    "PreferredNetworks": "",
    "Port": 0,
    "Weight": 100,
    "RegisterEnabled": true,
    "InstanceEnabled": true,
    "Ephemeral": true,
    "Secure": false,
    "AccessKey": "",
    "SecretKey": "",
    "UserName": "",
    "Password": "",
    "ConfigUseRpc": true,
    "NamingUseRpc": true,
    "NamingLoadCacheAtStart": "",
    "LBStrategy": "WeightRandom", //WeightRandom WeightRoundRobin
    "Metadata": {
      "debug": "true",
      "dev": ""
    }
  }
}

步骤3：添加appsettings.json 配置依赖

    public class Program
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()                
                .ConfigureAppConfiguration((builderContext, config) =>
                  {
                      config.SetBasePath(Directory.GetCurrentDirectory());
                      config.AddJsonFile("appsettings.json");
                      config.AddEnvironmentVariables();
                  })
           .ConfigureLogging((hostingContext, logging) =>
           {
               logging.ClearProviders();
        
           })
           .Build();
    }

步骤4：服务注册到Nacos并配置弹性HTTP客户端

    public class Startup
    {

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.AddHummingbird(hummingbird =>
            {
                hummingbird                
                // 服务注册到Nacos
                .AddNacosDynamicRoute(Configuration, s =>
                 {
                     s.AddTags("version=v1");
                 })
                 // 设置弹性HTTP客户端（服务发现、超时、重试、熔断）
                .AddResilientHttpClient((orign, option) =>
                 {
                     var setting = Configuration.GetSection("HttpClient");

                     if (!string.IsNullOrEmpty(orign))
                     {
                         var orginSetting = Configuration.GetSection($"HttpClient:{orign.ToUpper()}");
                         if(orginSetting.Exists())
                         {
                             setting = orginSetting;
                         }
                     }

                     option.DurationSecondsOfBreak = int.Parse(setting["DurationSecondsOfBreak"]);
                     option.ExceptionsAllowedBeforeBreaking = int.Parse(setting["ExceptionsAllowedBeforeBreaking"]);
                     option.RetryCount = int.Parse(setting["RetryCount"]);
                     option.TimeoutMillseconds = int.Parse(setting["TimeoutMillseconds"]);

                 });
               
            });
        }
    }

步骤5：测试HTTP Client

    using Hummingbird.Extensions.Resilience.Http;
    using Microsoft.AspNetCore.Mvc;
    using System.Threading;
    using System.Threading.Tasks;
    [Route("api/[controller]")]
    public class HttpClientTestController : Controller
    {
        private readonly IHttpClient httpClient;
        public HttpClientTestController(IHttpClient httpClient)
        {
            this.httpClient = httpClient;
        }
      

        [HttpGet]
        [Route("Test1")]
        public async Task<string> Test1()
        {
            return await httpClient.GetStringAsync("http://localhost:5001/healthcheck");
        }

        [HttpGet]
        [Route("Test2")]
        public async Task<string> Test2()
        {
            return await (await httpClient.PostAsync(
                uri: "http://{example}/healthcheck",
                item: new { },
                authorizationMethod: null, 
                authorizationToken: null,
                dictionary: null,
                cancellationToken: CancellationToken.None)).Content.ReadAsStringAsync();
        }

    }

3.8 Canal 数据集成

步骤1： 安装Nuget包

Install-Package Hummingbird.Extensions.Canal -Version 1.17.7

步骤2：配置 canal.json, binlog日志输出到控制台

{
 "Canal": {
    "Subscribes": [
      {
        "Filter": ".*\\..*",
        "BatchSize": 1024,
        "Format": "Hummingbird.Extensions.Canal.Formatters.CanalJson.Formatter,Hummingbird.Extensions.Canal", //MaxwellJsonFormatter,CanalJsonFormatter
        "Connector": "Hummingbird.Extensions.Canal.Connectors.ConsoleConnector,Hummingbird.Extensions.Canal",
        "ConnectionInfo": {
          "Address": "localhost",
          "Port": 11111,
          "Destination": "test1",
          "UserName": "",
          "Passsword": ""
        }
      }
    ]
  }

步骤3：添加appsettings.json 配置依赖

    public class Program
    {
        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()                
                .ConfigureAppConfiguration((builderContext, config) =>
                  {
                      config.SetBasePath(Directory.GetCurrentDirectory());
                      config.AddJsonFile("canal.json");
                      config.AddEnvironmentVariables();
                  })
           .Build();
    }

步骤4： 实现自己的binlog处理

    public class ConsoleSubscripter : ISubscripter
    {
        public bool Process(CanalEventEntry[] entrys)
        {
            foreach(var entry in entrys)
            {
                Console.WriteLine(Newtonsoft.Json.JsonConvert.SerializeObject(entry));
            }

            //ack
            return true;
        }
    }

4. 如何快速部署开发环境

4.1 Consul

4.2 Apollo

4.3 Mysql

4.4 Redis

4.5 Elasticsearch

4.6 Kafka

4.7 Rabbitmq

4.8 Grafana

4.9 Influxdb

4.10 Jaeger

4.11 Canal

4.12 Nacos

5. 相关项目

5.1 项目模板

6.联系方式

wechat：genius-ming email：[email protected]