Redis Master/Slave 实践

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2024-08-04 07:03:56 225人阅读

本次我们将模拟 Master(1) + Slave(4) 的场景，并通过ASP.NET WEB API进行数据的提交及查询，监控 Redis Master/Slave 数据分发情况，只大致概述，不会按照step by step的方式一一列举.

API List:

[POST]:http://localhost:53964/api/persons
Accept:application/json ,Content-Type:application/json

{    "Id": 2,    "Name": "Leo.J.Liu"}

[GET]:http://localhost:53964/api/persons/1
Accept:application/json ,Content-Type:application/json

{    "Id": 2,    "Name": "Leo.J.Liu"}

AutoMapper 自动转换Request DTO 与 DomainEntity

private readonly IPersonService personService;public PersonsController(IPersonService personService){     this.personService = personService;}

 public HttpResponseMessage GetPerson(int id)        {            var person = personService.GetPersonById(id);            if (person == null)            {                var resp = new HttpResponseMessage(HttpStatusCode.NotFound)                {                    Content = new StringContent(string.Format("No person with ID = {0}", id)),                    ReasonPhrase = "Person ID Not Found"                };                throw new HttpResponseException(resp);            };            return Request.CreateResponse(HttpStatusCode.OK, person);        }

public HttpResponseMessage AddPerson([FromBody] PersonRequestDto personDto)        {            Person person = Mapper.Map<PersonRequestDto,Person>(personDto);            var persons = personService.AddPerson(person);            return Request.CreateResponse(HttpStatusCode.OK, persons);        }

Application_Start 中完成AutoMapper注册

public class AutoMapperConfig    {        public static void RegisterMappings()        {            Mapper.Initialize(c =>            {                c.CreateMap<PersonRequestDto,Person>().ForMember(s=>s.UserAge,d=>d.MapFrom(e=>e.Age));            });        }    }


采用StackExchange.Redis 作为Redis的Client,其中(6379为Master,提供写操作),(6380~6382为Slave，提供查询操作)

public  class RedisService<T> where T : new()    {        public static ConfigurationOptions QueryConfig = new ConfigurationOptions        {            EndPoints =                {                    { "localhost", 6380 },                    { "localhost", 6381 },                    { "localhost", 6382 }                },        };        public static ConfigurationOptions SaveConfig = new ConfigurationOptions        {            EndPoints =                {                    { "localhost", 6379 }                },        };        public static T Get(string type,string key)        {            ConnectionMultiplexer redis =                ConnectionMultiplexer.Connect(QueryConfig);            IDatabase db = redis.GetDatabase();            string value = http://www.mamicode.com/db.StringGet(string.Format("{0}:{1}",type,key));            return JsonConvert.DeserializeObject<T>(value);        }        public static bool Save(string type, string key, T reqDto)        {            ConnectionMultiplexer redis =                ConnectionMultiplexer.Connect(SaveConfig);            IDatabase db = redis.GetDatabase();            string json = JsonConvert.SerializeObject(reqDto);            return db.StringSet(string.Format("{0}:{1}", type, key), json);        }    }

SimpleInjector 作为Ioc Container

public static class SimpleInjectorWebApiInitializer    {        public static void Initialize()        {            var container = new Container();                        InitializeContainer(container);            container.RegisterWebApiControllers(GlobalConfiguration.Configuration);                   container.Verify();                        GlobalConfiguration.Configuration.DependencyResolver =                new SimpleInjectorWebApiDependencyResolver(container);        }             private static void InitializeContainer(Container container)        {            container.Register<IPersonService, PersonService>();            container.Register<IRepository<Person>, PersonRepository>();        }    }

public class PersonRepository : IRepository<Person>    {        public List<Person> GetAll()        {            return RedisService<List<Person>>.Get("persons",string.Empty);        }        public Person GetById(int id)        {            return RedisService<Person>.Get("persons",id.ToString());        }        public bool Add(Person reqDto)        {            return RedisService<Person>.Save("persons", reqDto.Id.ToString(), reqDto);        }        public bool Update(Person reqDto)        {            throw new NotImplementedException();        }        public bool Remove(Person reqDto)        {            throw new NotImplementedException();        }    }

Redis 配置介绍:

Step1: 下载Redis

Step2: 分别创建如下图所示目录 data_1~data_4，redis_1.config~redis_4.config

data_1,redis_1.config 为Master 存储目录及配置文件

data_2～data_4,redis_2.config～ redis_4.config为Slave 存储目录及配置文件