add kafka sqlserver sample.

samples/Sample.Kafka.SqlServer/AppDbContext.cs

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+using Microsoft.EntityFrameworkCore;
+
+namespace Sample.Kafka.SqlServer
+{
+    public class AppDbContext : DbContext
+    {
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+           optionsBuilder.UseSqlServer("Server=192.168.2.206;Initial Catalog=Sample.Kafka.SqlServer;User Id=cmswuliu;Password=h7xY81agBn*Veiu3;MultipleActiveResultSets=True");
+           // optionsBuilder.UseSqlServer("Server=DESKTOP-M9R8T31;Initial Catalog=Sample.Kafka.SqlServer;User Id=sa;Password=P@ssw0rd;MultipleActiveResultSets=True");
+        }
+    }
+}

samples/Sample.Kafka.SqlServer/Controllers/ValuesController.cs

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+using System;
+using System.Diagnostics;
+using System.Threading.Tasks;
+using DotNetCore.CAP;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Sample.Kafka.SqlServer.Controllers
+{
+    public class Person
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public int Age { get; set; }
+
+        public override string ToString()
+        {
+            return "Name:" + Name + ";Age:" + Age;
+        }
+    }
+
+
+    [Route("api/[controller]")]
+    public class ValuesController : Controller, ICapSubscribe
+    {
+        private readonly ICapPublisher _capBus;
+        private readonly AppDbContext _dbContext;
+
+        public ValuesController(ICapPublisher producer, AppDbContext dbContext)
+        {
+            _capBus = producer;
+            _dbContext = dbContext;
+        }
+
+        [Route("~/publish")]
+        public IActionResult PublishMessage()
+        {
+
+            _capBus.Publish("sample.rabbitmq.sqlserver.order.check", DateTime.Now);
+
+            //var person = new Person
+            //{
+            //    Name = "杨晓东",
+            //    Age = 11,
+            //    Id = 23
+            //};
+            //_capBus.Publish("sample.rabbitmq.mysql33333", person);
+
+            return Ok();
+        }
+
+        [Route("~/publishWithTrans")]
+        public async Task<IActionResult> PublishMessageWithTransaction()
+        {
+            using (var trans = await _dbContext.Database.BeginTransactionAsync())
+            {
+                await _capBus.PublishAsync("sample.rabbitmq.mysql", "");
+
+                trans.Commit();
+            }
+            return Ok();
+        }
+
+        [CapSubscribe("sample.rabbitmq.mysql33333",Group ="Test.Group")]
+        public void KafkaTest22(Person person)
+        {
+            var aa = _dbContext.Database;
+
+            _dbContext.Dispose();
+
+            Console.WriteLine("[sample.kafka.sqlserver] message received   " + person.ToString());
+            Debug.WriteLine("[sample.kafka.sqlserver] message received   " + person.ToString());
+        }
+
+        //[CapSubscribe("sample.rabbitmq.mysql22222")]
+        //public void KafkaTest22(DateTime time)
+        //{
+        //    Console.WriteLine("[sample.kafka.sqlserver] message received   " + time.ToString());
+        //    Debug.WriteLine("[sample.kafka.sqlserver] message received   " + time.ToString());
+        //}
+
+        [CapSubscribe("sample.rabbitmq.mysql22222")]
+        public async Task<DateTime> KafkaTest33(DateTime time)
+        {
+            Console.WriteLine("[sample.kafka.sqlserver] message received   " + time.ToString());
+            Debug.WriteLine("[sample.kafka.sqlserver] message received   " + time.ToString());
+            return await Task.FromResult(time);
+        }
+
+        [NonAction]
+        [CapSubscribe("sample.kafka.sqlserver3")]
+        [CapSubscribe("sample.kafka.sqlserver4")]
+        public void KafkaTest()
+        {
+            Console.WriteLine("[sample.kafka.sqlserver] message received");
+            Debug.WriteLine("[sample.kafka.sqlserver] message received");
+        }
+    }
+}

samples/Sample.Kafka.SqlServer/Program.cs

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+using System.IO;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+
+namespace Sample.Kafka.SqlServer
+{
+    public class Program
+    {
+
+        //var config = new ConfigurationBuilder()
+        //    .AddCommandLine(args)
+        //    .AddEnvironmentVariables("ASPNETCORE_")
+        //    .Build();
+
+        //var host = new WebHostBuilder()
+        //    .UseConfiguration(config)
+        //    .UseKestrel()
+        //    .UseContentRoot(Directory.GetCurrentDirectory())
+        //    .UseIISIntegration()
+        //    .UseStartup<Startup>()
+        //    .Build();
+
+        //host.Run();
+        public static void Main(string[] args)
+        { 
+            BuildWebHost(args).Run();
+        }
+
+        public static IWebHost BuildWebHost(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>()
+                .Build();
+
+    }
+}

samples/Sample.Kafka.SqlServer/Sample.Kafka.SqlServer.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <AssemblyName>Sample.RabbitMQ.SqlServer</AssemblyName>
+  </PropertyGroup>
+ 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore" Version="2.0.0" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="2.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.CommandLine" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.0.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\src\DotNetCore.CAP.Kafka\DotNetCore.CAP.Kafka.csproj" />
+    <ProjectReference Include="..\..\src\DotNetCore.CAP.SqlServer\DotNetCore.CAP.SqlServer.csproj" />
+    <ProjectReference Include="..\..\src\DotNetCore.CAP\DotNetCore.CAP.csproj" />
+  </ItemGroup>
+
+</Project>

samples/Sample.Kafka.SqlServer/Startup.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+
+namespace Sample.Kafka.SqlServer
+{
+    public class Startup
+    {
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddDbContext<AppDbContext>();
+
+            services.AddCap(x =>
+            {
+                x.UseEntityFramework<AppDbContext>();
+                x.UseKafka("192.168.2.227:9091,192.168.2.227:9092,192.168.2.222:9092");
+                x.UseDashboard();
+                x.UseDiscovery(d =>
+                {
+                    d.DiscoveryServerHostName = "localhost";
+                    d.DiscoveryServerProt = 8500;
+                    d.CurrentNodeHostName = "localhost";
+                    d.CurrentNodePort = 5820;
+                    d.NodeName = "CAP 2号节点";
+                });
+            });
+
+            services.AddMvc();
+        }
+
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerFactory loggerFactory)
+        {
+            loggerFactory.AddConsole();
+            loggerFactory.AddDebug();
+
+            app.UseMvc();
+
+            app.UseCap();
+
+            app.UseCapDashboard();
+        }
+    }
+}