1.redis配置檔案

127.0.0.1:6379|127.0.0.1:6380|127.0.0.1:6381|127.0.0.1:6382|127.0.0.1:6383

2.主備切換流程

	/**
	 * 從備份Redis群中取出可用的Jedis，如果均失敗，則丟擲異常。底層採用ping
	 * 
	 * @param bakjedisArray
	 * @param index
	 * @return
	 */
	private final Jedis getWorkBakJedis(Jedis curJedis, Jedis[] bakjedisArray, int index) {
		if (index == 0) {
			System.out.println(getJedisUniqueName(curJedis) + " JedisConnectionException!");
			bakjedisArray = redisConfig.getBakRedisMap().get(getJedisUniqueName(curJedis));
			if (bakjedisArray == null) {
				throw new JedisConnectionException(getJedisUniqueName(curJedis) + "  No BakRedis!");
			}
		}
		Jedis bakjedis = bakjedisArray[index];
		try {
			bakjedis.ping();
			return bakjedis;
		} catch (JedisConnectionException e) {
			System.out.println(getJedisUniqueName(bakjedis) + " JedisConnectionException!");
			if (index == bakjedisArray.length - 1) {// 當前節點是最後的節點，直接丟擲異常
				throw new JedisConnectionException(
						getJedisUniqueName(curJedis) + "  All bak Jedis ConnectionException!");
			} else {
				return getWorkBakJedis(curJedis, bakjedisArray, index + 1);
			}
		}
	}