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初步看了下CacheCow与OutputCache，感觉还是CacheOutput比较符合自己的要求，使用也很简单
PM>Install-Package Strathweb.CacheOutput.WebApi2
CacheOutput特性
[Route("get")] [CacheOutput(ClientTimeSpan = 60, ServerTimeSpan = 60)] public IEnumerable<string> Get() { return new string[] { "Tom", "Irving" }; }
以参数为key
[Route("get")] [CacheOutput(ServerTimeSpan = 50, ExcludeQueryStringFromCacheKey = true)] public string Get(int id) { return DateTime.Now.ToString(); }
Etag头
客户端使用StackExchange.Redis，Install-Package StackExchange.Redis
在Autofac中注册Redis连接
var builder = new ContainerBuilder(); //注册api容器的实现 builder.RegisterApiControllers(Assembly.GetExecutingAssembly()); //注册mvc容器的实现 // builder.RegisterControllers(Assembly.GetExecutingAssembly()); //在Autofac中注册Redis的连接，并设置为Singleton builder.Register(r => { return ConnectionMultiplexer.Connect(DBSetting.Redis); }).AsSelf().SingleInstance(); var container = builder.Build(); GlobalConfiguration.Configuration.DependencyResolver = new AutofacWebApiDependencyResolver(container);
通过构造注入即可
/// <summary> ///Redis服务 /// </summary> public class RedisService : IRedisService { private static readonly Logger logger = LogManager.GetCurrentClassLogger(); /// <summary> ///Redis服务 /// </summary> private readonly ConnectionMultiplexer _connectionMultiplexer; /// <summary> /// 构造函数 /// </summary> /// <param name="connectionMultiplexer">Redis服务</param> public RedisService(ConnectionMultiplexer connectionMultiplexer) { _connectionMultiplexer = connectionMultiplexer; } /// <summary> /// 根据KEY获得值 /// </summary> /// <param name="key">key</param> /// <returns></returns> public async Task<WebAPIResponse> Get(string key) { try { var db = _connectionMultiplexer.GetDatabase(); /* var set = await db.StringSetAsync("name", "irving"); var get = await db.StringGetAsync("name"); */ return new WebAPIResponse { IsError = false, Msg = string.Empty, Data = await db.StringGetAsync(key) }; } catch (Exception ex) { logger.Error(ex, "RedisService Get Exception : " + ex.Message); return new WebAPIResponse { IsError = false, Msg = string.Empty, Data = string.Empty }; } } }
默认CacheOutput使用System.Runtime.Caching.MemoryCache来缓存数据，可以自定义扩展到DB,Memcached,Redis等;只需要实现IApiOutputCache接口
public interface IApiOutputCache { T Get<T>(string key) where T : class; object Get(string key); void Remove(string key); void RemoveStartsWith(string key); bool Contains(string key); void Add(string key, object o, DateTimeOffset expiration, string dependsOnKey = null); }
实现服务/// <summary> /// 实现Redis服务 /// </summary> public class RedisCacheProvider : IApiOutputCache { /// <summary> ///Redis服务 /// </summary> private readonly ConnectionMultiplexer _connectionMultiplexer; /// <summary> /// 构造函数 /// </summary> /// <param name="connectionMultiplexer">Redis服务</param> public RedisCacheProvider(ConnectionMultiplexer connectionMultiplexer) { _connectionMultiplexer = connectionMultiplexer; } public void Add(string key, object o, DateTimeOffset expiration, string dependsOnKey = null) { throw new NotImplementedException(); } public IEnumerable<string> AllKeys { get { throw new NotImplementedException(); } } public bool Contains(string key) { throw new NotImplementedException(); } public object Get(string key) { var db = _connectionMultiplexer.GetDatabase(); return db.StringGet(key); } public T Get<T>(string key) where T : class { throw new NotImplementedException(); } public void Remove(string key) { throw new NotImplementedException(); } public void RemoveStartsWith(string key) { throw new NotImplementedException(); } }
注册WebAPIConfig
configuration.CacheOutputConfiguration().RegisterCacheOutputProvider(() => RedisCacheProvider);
或者使用Autofac for Web API
var builder = new ContainerBuilder();
builder.RegisterInstance(new RedisCacheProvider());
config.DependencyResolver = new AutofacWebApiDependencyResolver(builder.Build());
Refer:
How to use caching in ASP.NET Web API?
http://stackoverflow.com/questions/14811772/how-to-use-caching-in-asp-net-web-api
Output caching in ASP.NET Web API
http://www.strathweb.com/2012/05/output-caching-in-asp-net-web-api/
NuGet Package of the Week: ASP.NET Web API Caching with CacheCow and CacheOutput
http://www.hanselman.com/blog/NuGetPackageOfTheWeekASPNETWebAPICachingWithCacheCowAndCacheOutput.aspx
使用CacheCow和ETag缓存资源
http://www.cnblogs.com/fzrain/p/3618887.html
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原文地址：http://www.cnblogs.com/Irving/p/4618556.html
