962148150 发表于 2015-9-1 12:06:39

Memcached 基础应用

安装
  一 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

  系统中会添加下面的服务
   
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


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);
//    start = int.Parse(args);
//}
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 + &quot; 次的存储时间: &quot; + new TimeSpan(time).ToString() + &quot;ms<br />&quot;);

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 + &quot; 获取缓存内容的时间: &quot; + new TimeSpan(time).ToString() + &quot;ms&quot; + &quot;<br />&quot;);
Response.Write(&quot;Cache hits: &quot; + hits.ToString() + &quot;<br />&quot;);
Response.Write(&quot;Cache misses: &quot; + misses.ToString() + &quot;<br />&quot;);
IDictionary stats = mc.Stats();
foreach (string key1 in stats.Keys)
{
Response.Write(&quot;配置地址做Key,也就是此地址当前的配置信息:&quot;+key1 + &quot;<br />而值也是一个名值对每个名是状态名,值是状态值:<br />&quot;);
Hashtable values = (Hashtable)stats; //地址的状态集合
foreach (string key2 in values.Keys) //遍历输出
{
Response.Write(key2 + &quot;:&quot; + values + &quot;<br />&quot;);
}
Response.Write(&quot;<p />&quot;);
}
//   if (mc.KeyExists(&quot;test&quot;))
//    {
//       Console.WriteLine(&quot;test is Exists&quot;);
//      Console.WriteLine(mc.Get(&quot;test&quot;).ToString());
//    }

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

  
  
  
  代码下载:MemcachedSample.rar
页: [1]
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