memCache
Memcache的介绍有很多，这里给出如何在Java中应用Memcache的基本方法
1安装Memcache服务器(windows)
下载windows版Memcache安装包，如memcached-1.2.6-win32-bin.zip，解压到指定位置，比如(D://memcache)，打开dos命令行，输入以下两个命令即可启动Memcache服务。
D:/memcache/memcached.exe-dinstall
D:/memcache/memcached.exe-dstart
2下载Java版本的memcache客户端(以下列出常用的几种)。
spymemcached：
http://code.google.com/p/spymemcached/
gwhalin/Memcached-Java-Client
https://github.com/gwhalin/Memcached-Java-Client/downloads
Jcache
http://code.google.com/intl/zh-CN/appengine/docs/java/memcache/usingjcache.html
3下面给出两种方式调用Memcache
gwhalin/Memcached-Java-Client调用方式如下：
[java:nogutter]viewplaincopyprint?publicclassMemcacheManagerForGwhalin{
//构建缓存客户端
privatestaticMemCachedClientcachedClient;
//单例模式实现客户端管理类
privatestaticMemcacheManagerForGwhalinINSTANCE=newMemcacheManagerForGwhalin();
privateMemcacheManagerForGwhalin(){
cachedClient=newMemCachedClient();
//获取连接池实例
SockIOPoolpool=SockIOPool.getInstance();
//设置缓存服务器地址，可以设置多个实现分布式缓存
pool.setServers(newString[]{"127.0.0.1:11211"});
//设置初始连接5
pool.setInitConn(5);
//设置最小连接5
pool.setMinConn(5);
//设置最大连接250
pool.setMaxConn(250);
//设置每个连接最大空闲时间3个小时
pool.setMaxIdle(1000*60*60*3);
pool.setMaintSleep(30);
pool.setNagle(false);
pool.setSocketTO(3000);
pool.setSocketConnectTO(0);
pool.initialize();
}
/**
*获取缓存管理器唯一实例
*@return
*/
publicstaticMemcacheManagerForGwhalingetInstance(){
returnINSTANCE;
}
@Override
publicvoidadd(Stringkey,Objectvalue){
cachedClient.set(key,value);
}
@Override
publicvoidadd(Stringkey,Objectvalue,intmilliseconds){
cachedClient.set(key,value,milliseconds);
}
@Override
publicvoidremove(Stringkey){
cachedClient.delete(key);
}
@Override
publicvoidremove(Stringkey,intmilliseconds){
cachedClient.delete(key,milliseconds,newDate());
}
@Override
publicvoidupdate(Stringkey,Objectvalue,intmilliseconds){
cachedClient.replace(key,value,milliseconds);
}
@Override
publicvoidupdate(Stringkey,Objectvalue){
cachedClient.replace(key,value);
}
@Override
publicObjectget(Stringkey){
returncachedClient.get(key);
}
}
publicclassMemcacheManagerForGwhalin{
//构建缓存客户端
privatestaticMemCachedClientcachedClient;
//单例模式实现客户端管理类
privatestaticMemcacheManagerForGwhalinINSTANCE=newMemcacheManagerForGwhalin();
privateMemcacheManagerForGwhalin(){
cachedClient=newMemCachedClient();
//获取连接池实例
SockIOPoolpool=SockIOPool.getInstance();
//设置缓存服务器地址，可以设置多个实现分布式缓存
pool.setServers(newString[]{"127.0.0.1:11211"});
//设置初始连接5
pool.setInitConn(5);
//设置最小连接5
pool.setMinConn(5);
//设置最大连接250
pool.setMaxConn(250);
//设置每个连接最大空闲时间3个小时
pool.setMaxIdle(1000*60*60*3);
pool.setMaintSleep(30);
pool.setNagle(false);
pool.setSocketTO(3000);
pool.setSocketConnectTO(0);
pool.initialize();
}
/**
*获取缓存管理器唯一实例
*@return
*/
publicstaticMemcacheManagerForGwhalingetInstance(){
returnINSTANCE;
}
@Override
publicvoidadd(Stringkey,Objectvalue){
cachedClient.set(key,value);
}
@Override
publicvoidadd(Stringkey,Objectvalue,intmilliseconds){
cachedClient.set(key,value,milliseconds);
}
@Override
publicvoidremove(Stringkey){
cachedClient.delete(key);
}
@Override
publicvoidremove(Stringkey,intmilliseconds){
cachedClient.delete(key,milliseconds,newDate());
}
@Override
publicvoidupdate(Stringkey,Objectvalue,intmilliseconds){
cachedClient.replace(key,value,milliseconds);
}
@Override
publicvoidupdate(Stringkey,Objectvalue){
cachedClient.replace(key,value);
}
@Override
publicObjectget(Stringkey){
returncachedClient.get(key);
}
}
Spy方式调用如下:
publicclassMemcacheManagerForSpyimplementsIMemcacheManager{
//缓存客户端
privateMemcachedClientmemcacheCient;
//Manager管理对象，单例模式
privatestaticMemcacheManagerForSpyINSTANCE=newMemcacheManagerForSpy();
privateMemcacheManagerForSpy(){
try{
memcacheCient=newMemcachedClient(newInetSocketAddress("127.0.0.1",11211));
}catch(IOExceptione){
e.printStackTrace();
}
}
publicstaticMemcacheManagerForSpygetInstance(){
returnINSTANCE;
}
@Override
publicvoidadd(Stringkey,Objectvalue,intmilliseconds){
memcacheCient.add(key,milliseconds,value);
}
@Override
publicvoidadd(Stringkey,Objectvalue){
memcacheCient.add(key,3600,value);
}
@Override
publicvoidremove(Stringkey,intmilliseconds){
memcacheCient.delete(key);
}
@Override
publicvoidremove(Stringkey){
memcacheCient.delete(key);
}
@Override
publicvoidupdate(Stringkey,Objectvalue,intmilliseconds){
memcacheCient.replace(key,milliseconds,value);
}
@Override
publicvoidupdate(Stringkey,Objectvalue){
memcacheCient.replace(key,3600,value);
}
@Override
publicObjectget(Stringkey){
returnmemcacheCient.get(key);
}
}