redis 获取随机数 redis随机取10个

@Resource(name = "coreStringRedisTemplate")
	private SetOperations<String, String> setOpt;
	@Test
	public void testList2Set(){
		List<String> strList = new ArrayList<String>();
		strList.add("双方都");
		strList.add("阿斯蒂芬都");
		strList.add("广告");
		strList.add("双方都1");
		strList.add("双方都2");
		strList.add("双方都3");
		strList.add("双方都4");
		strList.add("双方都5");
		strList.add("双方都6");
		Set<String> set = new HashSet<String>();
		set.addAll(strList);
		String[] arr = new String[set.size()];
		arr = set.toArray(arr);
		long ss = setOpt.add("randomNames", arr);
		System.out.println(ss);
		List<String> lss = setOpt.randomMembers("randomNames", 5); //随机返回5个，可以重复
		Set<String> rss = setOpt.distinctRandomMembers("randomNames", 5); //随机返回5个，没有重复
		for (String string : rss) {
			System.out.println(string);
		}
	}