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加入MemoryCache相关代码

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kuaigoumanzhu 2016-08-27 00:51:26 +08:00
parent ece6a57d6e
commit 981b595bcc
3 changed files with 147 additions and 1 deletions
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48
Infrastructure/Cache/ICache.cs Normal file
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@ -0,0 +1,48 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Infrastructure.Cache
{
public interface ICache
{
/// <summary>
/// 加入缓存项
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
void Add(string key, object value, TimeSpan timeSpan);
/// <summary>
/// 加入依赖物理文件的缓存项
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="fullFileNameOfFileDependency">依赖的文件全路径</param>
void AddWithFileDependency(string key, object value, string fullFileNameOfFileDependency);
/// <summary>
/// 获取缓存项
/// </summary>
/// <param name="cacheKey"></param>
/// <returns></returns>
object Get(string cacheKey);
T Get<T>(string cacheKey) where T : class;
void Remove(string cacheKey);
/// <summary>
/// 如果不存在缓存项则添加，否则更新（相对过期）
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
void Set(string key, object value, TimeSpan timeSpan);
/// <summary>
/// 设置绝对过期时间
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
void SetAbsoluteExpiration(string key, object value, TimeSpan timeSpan);
}
}

93
Infrastructure/Cache/RuntimeMemoryCache.cs Normal file
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using System;
using System.Collections.Generic;
using System.Runtime.Caching;
namespace Infrastructure.Cache
{
public class RuntimeMemoryCache : ICache
{
private readonly MemoryCache memoryCache = MemoryCache.Default;
/// <summary>
/// 加入缓存项(绝对过期时间)
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
public void Add(string key, object value, TimeSpan timeSpan)
{
if (!string.IsNullOrEmpty(key) && (value != null))
{
CacheItemPolicy cip = new CacheItemPolicy()
{
AbsoluteExpiration = DateTime.Now.Add(timeSpan)
};
this.memoryCache.Add(key, value, cip, null);
}
}
/// <summary>
/// 加入依赖物理文件的缓存项
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="fullFileNameOfFileDependency">依赖的文件全路径</param>
public void AddWithFileDependency(string key, object value, string fullFileNameOfFileDependency)
{
if (!string.IsNullOrEmpty(key) && (value != null))
{
CacheItemPolicy policy = new CacheItemPolicy
{
AbsoluteExpiration = DateTimeOffset.Now.AddMonths(1)
};
policy.ChangeMonitors.Add(new HostFileChangeMonitor(new List<string> { fullFileNameOfFileDependency }));
this.memoryCache.Add(key, value, policy, null);
}
}
public object Get(string cacheKey)
{
return this.memoryCache[cacheKey];
}
public T Get<T>(string cacheKey) where T : class
{
object obj = this.Get(cacheKey);
if (obj != null)
{
return (obj as T);
}
return default(T);
}
public void Remove(string cacheKey)
{
this.memoryCache.Remove(cacheKey, null);
}
/// <summary>
/// 如果不存在缓存项则添加，否则更新(相对过期)
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
public void Set(string key, object value, TimeSpan timeSpan)
{
CacheItemPolicy cip = new CacheItemPolicy()
{
SlidingExpiration = timeSpan,
};
this.memoryCache.Set(key, value, cip, null);
}
/// <summary>
/// 设置绝对过期时间
/// </summary>
/// <param name="key">缓存项标识</param>
/// <param name="value">缓存项</param>
/// <param name="timeSpan">缓存失效时间</param>
public void SetAbsoluteExpiration(string key, object value, TimeSpan timeSpan)
{
CacheItemPolicy cip = new CacheItemPolicy()
{
AbsoluteExpiration = DateTime.Now.Add(timeSpan),
};
this.memoryCache.Set(key, value, cip, null);
}
}
}

7
Infrastructure/Infrastructure.csproj
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@ -58,6 +58,7 @@
<HintPath>..\packages\Microsoft.AspNet.WebApi.Client.5.2.3\lib\net45\System.Net.Http.Formatting.dll</HintPath>
<Private>True</Private>
</Reference>
<Reference Include="System.Runtime.Caching" />
<Reference Include="System.Web" />
<Reference Include="System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
<HintPath>..\packages\Microsoft.AspNet.WebPages.3.2.3\lib\net45\System.Web.Helpers.dll</HintPath>
@ -77,6 +78,8 @@
<Compile Include="AutoMapperExt.cs" />
<Compile Include="Cache\CacheContext.cs" />
<Compile Include="Cache\EnyimMemcachedContext.cs" />
<Compile Include="Cache\ICache.cs" />
<Compile Include="Cache\RuntimeMemoryCache.cs" />
<Compile Include="Cache\SessionContext.cs" />
<Compile Include="CookieHelper.cs" />
<Compile Include="DynamicLinq.cs" />
@ -98,7 +101,9 @@
<ItemGroup>
<None Include="packages.config" />
</ItemGroup>
<ItemGroup />
<ItemGroup>
<Folder Include="MVC\" />
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
<!-- <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">