twmvc26sample

淺談 ASP.NET Caching 技術與實踐範例程式碼

1. CacheProvider

• ICacheProvider
• MemoryCacheProvider
• NullCacheProvider

MemoryCacheProvider / NullCacheProvider + ProviderModule + Autofac

public class ProviderModule : Module
{
	protected override void Load(ContainerBuilder builder)
	{
		var cacheProviderType = ConfigurationManager.AppSettings.Get("CacheProviderType");

		builder
			.RegisterType(Type.GetType(cacheProviderType))
			.As<ICacheProvider>()
			.InstancePerLifetimeScope();
	}
}

Config 設定

<appSettings>
  <!-- CacheProvider  -->
  <add key="CacheProviderType" value="twmvc26.MemoryCacheProvider, twmvc26" />
  <!--<add key="CacheProviderType" value="twmvc26.NullCacheProvider, twmvc26" />-->
</appSettings>

使用方式

public ActionResult Index()
{
	var cacheTime = 3;	
	List<Employee> result = null;
	//// 1.從快取層取得資料
	var cacheData = this._cacheProvider.Get<List<Employee>>("Key");
	//// 2.找不到快取資料
	if (cacheData == null)
	{
		//// 3.從服務層取得資料
		result = this._employeeService.GetAll();
		//// 4.將資料設定到快取
		this._cacheProvider.Set("Key", result, cacheTime);
	}
	else
	{
		//// 3.快取有資料，直接回傳
		result = cacheData;
	}
	return View(result);
}

2. DataCacheService

• IDataCacheService
• DataCacheService

使用方式

public ActionResult Index()
{
	var enableCache = true;
	var cleanCache = false;
	var memoryCacheExpirationSecond = 5;

	var employeeList = this._dataCacheService.GetMemoryCacheData<List<Employee>>(
		"ServiceName",
		"TypeName",
		"Key2",
		() =>
		{
			ViewBag.Status = "Data From Service";
    
			var result = this._employeeService.GetAll();
			return result;
		},
		memoryCacheExpirationSecond,
		enableCache,
		cleanCache);
  
	return View(employeeList);
}

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以上。

若有不清楚或是需要進一步協助請再讓我知道。謝謝。