redisCache

public interface Cache<T> {
	
	/**
	 * Get an item from the cache, nontransactionally
	 * @param key
	 * @return the cached object or <tt>null</tt>
	 */
	T get(Object key);


	/**
	 *  multiGet
	 * @param keys  要查询的key集合
	 * @return
	 */
	List  multiGet(Collection keys);

	/**
	 * 批量set
	 * @param map
	 */
	void multiSet(Map map);


	/**
	 * 批量删除
	 * @param keys 要删除的key集合
	 */
	void multiDel(Collection keys);

	/**
	 * Add an item to the cache, nontransactionally, with
	 * failfast semantics
	 * @param key
	 * @param value
	 */
	void put(Object key, T value);
	
	/**
	 * 往缓存中写入内容
	 * @param key
	 * @param value
	 * @param exp	超时时间，单位为秒
	 */
	void put(Object key, T value, int exp);

	/**
	 * 删除
	 * @param key
	 */
	void remove(Object key);

	/**
	 * 删除
	 * @param key
	 */
	void vagueDel(Object key);

	/**
	 * Clear the cache
	 */
	void clear();


	/**
	 * 往缓存中写入内容
	 * @param key		缓存key
	 * @param hashKey	缓存中hashKey
	 * @param hashValue hash值
	 */
	void putHash(Object key,Object hashKey,Object hashValue);

	/**
	 * 玩缓存中写入内容
	 * @param key
	 * @param map
	 */
	void putAllHash(Object key,Map map);

	/**
	 * 读取缓存值
	 * @param key
	 * @param hashKey
	 * @return
	 */
	T getHash(Object key,Object hashKey);

	/**
	 * 读取缓存值
	 * @param key
	 * @return
	 */
	Map<Object,Object> getHash(Object key);
}

/**
 * redis的cache实现
 */
@Component
public class RedisCacheImpl implements Cache {

    @Autowired
    private RedisTemplate redisTemplate;


    public RedisCacheImpl() {

    }

    @Override
    public Object get(Object key) {

        return redisTemplate.opsForValue().get(key);
    }

    @Override
    public List multiGet(Collection  keys) {
       return redisTemplate.opsForValue().multiGet(keys);

    }


    @Override
    public void multiSet(Map map) {
        redisTemplate.opsForValue().multiSet(map);
    }

    @Override
    public void multiDel(Collection keys) {
        redisTemplate.delete(keys);
    }

    @Override
    public void put(Object key, Object value) {

        redisTemplate.opsForValue().set(key, value);
    }

    @Override
    public void put(Object key, Object value, int exp) {

        redisTemplate.opsForValue().set(key, value, exp, TimeUnit.SECONDS);
    }

    @Override
    public void remove(Object key) {

        redisTemplate.delete(key);
    }

    /**
     * 删除
     *
     * @param key
     */
    @Override
    public void vagueDel(Object key) {
        Set<String> keys = redisTemplate.keys(key + "*");
        redisTemplate.delete(keys);
    }

    @Override
    public void clear() {

        Set keys = redisTemplate.keys("*");
        redisTemplate.delete(keys);
    }

    @Override
    public void putHash(Object key, Object hashKey, Object hashValue) {
        redisTemplate.opsForHash().put(key, hashKey, hashValue);
    }

    @Override
    public void putAllHash(Object key, Map map) {
        redisTemplate.opsForHash().putAll(key, map);
    }

    @Override
    public Object getHash(Object key, Object hashKey) {
        return redisTemplate.opsForHash().get(key, hashKey);
    }

    @Override
    public Map<Object, Object> getHash(Object key) {
        return this.redisTemplate.opsForHash().entries(key);
    }

}