1. What is Memcached
Memcached是一个免费开源、高性能、分布式的内存对象缓存系统。Memcached是在内存中，为特定数据（字符串或对象）构建key-value的小块数据存储。
2.
下载Memcached的服务器端软件
Windows平台版本下载：http://splinedancer.com/memcached-win32/memcached-1.2.4-Win32-Preview-20080309_bin.zip
Linux平台版本下载：http://memcached.googlecode.com/files/memcached-1.4.10.tar.gz
3. 在服务器上部署Memcached Server
以下以Windows平台为例：
参考：http://www.codeforest.net/how-to-install-memcached-on-windows-machine
下载下来的Windows版本解压到C:/memcached/
在控制台输入命令安装：
[plain]
c:/memcached/memcached.exe -d install
启动：
[plain]
c:/memcached/memcached.exe -d start
或：
[plain]
net start "memcached Server"
默认的缓存大小为64M，如果不够用，请打开注册表，找到：
[plain]
HKEY_LOCAL_MACHINE/SYSTEM/CurrentControlSet/Services/memcached Server .
将其内容修改为：
[plain]
“C:/memcached/memcached.exe” -d runservice -m 512
4. 下载Memcached的客户端API包
下载地址：http://spymemcached.googlecode.com/files/memcached-2.5.jar
5. 编写一个Java数据类
[java]
package com.sinosuperman.memcached;
import java.io.Serializable;
public class User implements Serializable{
private static final long serialVersionUID = -372274003834027815L;
String userId;
public User(String userId) {
super();
this.userId = userId;
}
public String getUserId() {
return userId;
}
public void setUserId(String userId) {
this.userId = userId;
}
@Override
public String toString() {
// TODO Auto-generated method stub
StringBuffer sb=new StringBuffer();
sb.append("userId="+this.userId);
return sb.toString();
}
}
6. 编写一个Memcached的客户端
[java]
package com.sinosuperman.memcached;
import java.io.IOException;
import java.net.InetSocketAddress;
import net.spy.memcached.MemcachedClient;
public class TestMemcached {
public static void main(String[] args) throws IOException {
MemcachedClient cache = new MemcachedClient(new InetSocketAddress("127.0.0.1", 11211));
for (int i = 1; i < 10; i++) {
cache.set("T0001" + i, 3600, new User(i + ""));
}
User myObject = (User) cache.get("T00011");
System.out.println("Get object from mem :" + myObject);
}
}
7. 运行测试
运行结果应该如下：
[java]
2011-12-15 17:25:30.276 INFO net.spy.memcached.MemcachedConnection: Added {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} to connect queue
2011-12-15 17:25:30.292 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@c62080
Get object from mem :userId=1
尊重知识，转载请注明本文来自：
编程艺术家Poechant的CSDN博客http://blog.csdn.net/poechant
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