JAVA分布式内存开源实现：HAZELCAST

Hazelcast是一个Java的开源分布式内存实现，它具有以下特性：

01    Distributed implementations of java.util.{Queue, Set, List, Map}
02    Distributed implementation of java.util.concurrent.ExecutorService
03    Distributed implementation of java.util.concurrency.locks.Lock
04    Distributed Topic for publish/subscribe messaging
05    Transaction support and J2EE container integration via JCA
06    Distributed listeners and events
07    Support for cluster info and membership events
08    Dynamic HTTP session clustering
09    Dynamic clustering
10    Dynamic scaling to hundreds of servers
11    Dynamic partitioning with backups
12    Dynamic fail-over
13    Super simple to use; include a single jar
14    Super fast; thousands of operations per sec.
15    Super small; less than a MB
16    Super efficient; very nice to CPU and RAM

安装也非常方便：

1    Download hazelcast-version.zip from www.hazelcast.com
2    Unzip hazelcast-version.zip file
3    Add hazelcast.jar file into your classpath

要使用分布式的Map，只需要以下代码即可实现：