玩转Redis！非常强大的Redisson分布式集合，少写60%代码

在Redis中，我们可以使用Redisson框架来操作Redis。Redisson提供了分布式的Java集合，例如分布式Map，分布式List，分布式Set等，这些集合都可以跨多个Redis实例进行水平扩展。

以下是一些使用Redisson进行操作的示例：

1. 使用分布式RMap:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RMap<String, SomeObject> map = redisson.getMap("anyMap");
map.put("key1", new SomeObject());
SomeObject obj = map.get("key1");

2. 使用分布式RSet:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RSet<SomeObject> set = redisson.getSet("anySet");
set.add(new SomeObject());
set.contains(new SomeObject());

3. 使用分布式RQueue:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RQueue<SomeObject> queue = redisson.getQueue("anyQueue");
queue.offer(new SomeObject());
SomeObject obj = queue.poll();

4. 使用分布式RTopic:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RTopic<SomeObject> topic = redisson.getTopic("anyTopic");
topic.publish(new SomeObject());
topic.addListener(new MessageListener<SomeObject>() {
    @Override
    public void onMessage(String channel, SomeObject message) {
        // handle new message
    }
});

5. 使用分布式RLock:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RLock lock = redisson.getLock("anyLock");
lock.lock();
try {
    // do your work
} finally {
    lock.unlock();
}

6. 使用分布式RSemaphore:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RSemaphore semaphore = redisson.getSemaphore("anySemaphore");
semaphore.acquire();
try {
    // do your work
} finally {
    semaphore.release();
}

7. 使用分布式RAtomicLong:

Config config = new Config();
config.useSingleServer().setAddress("redis://127.0.0.1:6379");
RedissonClient redisson = Redisson.create(config);
 
RAtomicLong atomicLong = redisson.getAtomicLong("anyAtomicLong");
atomicLong.incrementAndGet();
long value = atomicLong.get();

以上