spring hibernate memcached 配备

spring hibernate memcached 配置
配置所用到的版本：spring 3.X,hibernate 3.5
1.二级缓存的提供者com.googlecode.hibernate.memcached.MemcachedCacheProvider 下载地址：http://code.google.com/p/hibernate-memcached/downloads/list
2.memcached服务器端安装
window xp下载地址：http://www.splinedancer.com/memcached-win32/
安装：memcached.exe -d install　启动：memcached.exe -d start
memcached的默认端口是:11211
3.spring下的配置如下：


<prop key="hibernate.cache.use_second_level_cache">true</prop>

<prop key="hibernate.cache.provider_class">com.googlecode.hibernate.memcached.MemcachedCacheProvider</prop>

<prop key="hibernate.memcached.servers">127.0.0.1:11211</prop>

<prop key="hibernate.cache.region_prefix">quality.cache.ehcache</prop>

<prop key="hibernate.cache.use_structured_entries">true</prop>

<prop key="hibernate.cache.use_query_cache">true</prop>
4.在启动项目时候会需要如下jar包slf4j-api-1.6.1.jar,slf4j-simple-1.6.1.jar.
启动时必须启动memcached,不然会报错
5.对于要使用缓存的PO,在对应的po.hbm.xml中加入<cache usage="read-only"/>,此配置可以自己灵活掌握，不懂的可以查看hibernate官方文档
6.在web.xml中加入
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
</filter>

<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
现在hibernate用Memcached做二级缓存的配置全部做完，自己可以做一下测试．
请谨慎使用二级缓存
7.客服端调用测试工具类，我自己随便写了一个，只供参考：
我使用的spy做为Memcached客服端调用．下载地址：
http://code.google.com/p/spymemcached/

import java.io.IOException;
import java.net.InetSocketAddress;
import net.spy.memcached.MemcachedClient;

public class MemUtil {
   static MemcachedClient mc =null;
   final static MemUtil mu=null;
   static{
   try {
InetSocketAddress ica = new InetSocketAddress("127.0.0.1", 11211);
mc = new MemcachedClient(ica);
//mc.connectionLost(ica);
//mc
} catch (IOException e) {
e.printStackTrace();
}
   }
   public static MemUtil getIntance(){
   if(null==mu)return new MemUtil();
   return mu;
   }
   public void put(String key ,Object value){
   //mc.add(key, exp, o)
   mc.add(key, 9000, value);//过期时间
   }
   public Object get(String key){
   return mc.get(key);
   }

   public static void main(String[] args) {
   MemUtil mu = MemUtil.getIntance();
   mu.put("name", "value");
   System.out.println(mu.get("name"));
}
}

spring hibernate memcached 配备

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