微软分布式缓存AppFabric（Velocity）－开发篇（一）开发环境准备

配置好缓存群集时，在windows services 中启动名为：Microsoft project code named “Velocity”的服务，该服务默认不会自动启动

1. 将Volocity的程序集copy到开发机器上。程序集位于Velocity的安装目录。程序集如下：

CacheBaseLibrary.dll,

ClientLibrary.dll,

 FabricCommon.dll,

 CASBase.dll.

2.在VS的工程中添加以上程序集的引用

3.配置缓存客户端的xml配置文件一般为.config文件，或直接在代码里指定配置

选择用Routing Cleing或Simple Client,选择Routing Client会获得最佳的性能。

 

Demo:

下面是一个Routing Client的配置示例。示例中未启用本地缓存，但使用了两个缓存主机：CacheServer1和CacheServer2

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

  

  <!--configSections must be the FIRST element -->

  <configSections>

    

    <!-- required to read the <dataCacheClient> element -->

    <section name="dataCacheClient"

       type="Microsoft.Data.Caching.DataCacheClientSection,

       CacheBaseLibrary"

       allowLocation="true"

       allowDefinition="Everywhere"/>

    

    <!-- required to read the <fabric> element, when present -->

    <section name="fabric"

       type="System.Data.Fabric.Common.ConfigFile,

       FabricCommon"

       allowLocation="true"

       allowDefinition="Everywhere"/>

    

  </configSections>

  

  <!-- routing client-->

  <dataCacheClient deployment="routing">



    <!-- (optional) specify local cache 

    <localCache

      isEnabled="true"

      sync="TTLBased"

      objectCount="100000"

      ttlValue="300" />

    -->



    <!--(optional) specify cache notifications poll interval 

    <clientNotification pollInterval="300" />

    -->

    

    <!-- cache host(s) -->    

    <hosts>

      <host

         name="CacheServer1"

         cachePort="22233"

         cacheHostName="DistributedCacheService"/>

      <host

         name="CacheServer2"

         cachePort="22233"

         cacheHostName="DistributedCacheService"/>

    </hosts>

  </dataCacheClient>

</configuration>

 

 

下面代码演示如何在代码中指定配置

//declare array for cache host(s)

DataCacheServerEndpoint[] servers = new DataCacheServerEndpoint[1];



//specify cache host(s)

servers[0] = new DataCacheServerEndpoint("CacheServer2", 

                        22233, "DistributedCacheService");



//specify cache client configuration

DataCacheFactory mycacheFactory 

    = new DataCacheFactory(servers, true, false);



//get cache client for cache "NamedCache1"

DataCache myDefaultCache = mycacheFactory.GetCache("NamedCache1");