Memcached 基础应用

安装

Memcached服务器端的安装 (此处将其作为系统服务安装)
  下载文件:memcached 1.2.1 for Win32 binaries (Dec 23, 2006) 
   1 解压缩文件到c:\memcached
   2 命令行输入 'c:\memcached\memcached.exe -d install' 
   3 命令行输入 'c:\memcached\memcached.exe -d start' ,该命令启动 Memcached ,默认监听端口为 11211
  通过 memcached.exe -h 可以查看其帮助

 image

系统中会添加下面的服务

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二   .NET memcached client library
   下载文件:https://sourceforge.net/projects/memcacheddotnet/

   里面有.net1.1  和 .net2.0的两种版本  还有一个不错的例子。

版本更新很慢,在.Net 的开发技术中十分少用,首微软的开发解决方案上面不赞成此种共享内存方式。

 

代码

引用下面的组件

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;



using Memcached.ClientLibrary;

using System.Collections;



namespace MemcachedSample

{

    public partial class _Default : System.Web.UI.Page

    {

        protected void Page_Load(object sender, EventArgs e)

        {

            int runs = 100;

            int start = 200;

            //if (args.Length > 1)

            //{

            //    runs = int.Parse(args[0]);

            //    start = int.Parse(args[1]);

            //}



            string[] serverlist = { "192.168.1.80:11211", "192.168.1.80:11211" }; //只能用IP



            // 初始缓存服务器

            SockIOPool pool = SockIOPool.GetInstance();

            pool.SetServers(serverlist);

            

            //连接数

            pool.InitConnections = 3;

            pool.MinConnections = 3;

            pool.MaxConnections = 5;

            

            //超时时间

            pool.SocketConnectTimeout = 1000;

            pool.SocketTimeout = 3000;

            //

            pool.MaintenanceSleep = 30;

            pool.Failover = true;



            pool.Nagle = false;

            pool.Initialize();



            // 获得客户端实例

            MemcachedClient mc = new MemcachedClient();

            // 启用压缩

            mc.EnableCompression = false;

            // 缓存Key

            string keyBase = "testKey";

            string obj = "放到缓存中的内容对象";



            long begin = DateTime.Now.Ticks;

            //循环runS - start 次 添加这么多次的块缓存,内容全是一个

            for (int i = start; i < start + runs; i++)

            {

                mc.Set(keyBase + i, obj); //存储数据到缓存服务器,Key 是 testKey100,testKey101......



            }

            long end = DateTime.Now.Ticks;

            long time = end - begin;//计算缓存用去的时间

            



            Response.Write(runs + " 次的存储时间: " + new TimeSpan(time).ToString() + "ms<br />");





            begin = DateTime.Now.Ticks;

            int hits = 0;

            int misses = 0;

            for (int i = start; i < start + runs; i++)

            {

                string str = (string)mc.Get(keyBase + i); //获取当前次数的缓存值

                if (str != null)

                    ++hits; //存在计数

                else

                    ++misses; //不存在计数,这种实力如果出现不存在就出问题了

            }

            end = DateTime.Now.Ticks;

            time = end - begin; //计算时间



            Response.Write(runs + " 获取缓存内容的时间: " + new TimeSpan(time).ToString() + "ms" + "<br />");

            Response.Write("Cache hits: " + hits.ToString() + "<br />");

            Response.Write("Cache misses: " + misses.ToString() + "<br />");



            IDictionary stats = mc.Stats();

            foreach (string key1 in stats.Keys)

            {

                Response.Write("配置地址做Key,也就是此地址当前的配置信息:"+key1 + "<br />而值也是一个名值对每个名是状态名,值是状态值:<br />");

                Hashtable values = (Hashtable)stats[key1]; //地址的状态集合

                foreach (string key2 in values.Keys) //遍历输出

                {

                    Response.Write(key2 + ":" + values[key2] + "<br />");

                }

                Response.Write("<p />");

            }



         //   if (mc.KeyExists("test"))

         //    {

         //       Console.WriteLine("test is Exists");

         //      Console.WriteLine(mc.Get("test").ToString());

         //    }





            SockIOPool.GetInstance().Shutdown();  ////关闭池, 关闭sockets



        }

    }

}

结果

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代码下载:MemcachedSample.rar

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