RedisTemplate操作(String、hash、set)

@SpringBootTest
class Demo1ApplicationTests {

    @Autowired
    private RedisTemplate redisTemplate;
    @Autowired
    private StringRedisTemplate stringRedisTemplate;

    @Test
    void contextLoads() {
        redisTemplate.opsForValue().set("key1","value1");
        System.out.println("redisTemplate存redisTemplate取："+redisTemplate.opsForValue().get("key1"));
        System.out.println("redisTemplate存stringRedisTemplate取："+stringRedisTemplate.opsForValue().get("key1"));
        stringRedisTemplate.opsForValue().set("key2","value2");
        System.out.println("stringRedisTemplate存redisTemplate取："+redisTemplate.opsForValue().get("key2"));
        System.out.println("stringRedisTemplate存stringRedisTemplate取："+stringRedisTemplate.opsForValue().get("key2"));
    }

//  String
    @Test
    public void StringDemo1(){
        //存k,v
        redisTemplate.opsForValue().set("key1","value1");
        //取v
        String s = (String)redisTemplate.opsForValue().get("key1");
        System.out.println(s);
    }

    @Test
    public void StringDemo2() throws Exception{
        //设定有效时长,TimeUnit.SECONDS是单位
        redisTemplate.opsForValue().set("key2","value2",1, TimeUnit.SECONDS);

        Thread.sleep(1100);
        System.out.println(redisTemplate.opsForValue().get("key2"));
    }

    @Test
    public void StringDemo3() throws Exception{
        stringRedisTemplate.opsForValue().set("key", "hello world");
        //从偏移量开始对给定key的value进行覆写，若key不存在，则前面偏移量为空
        stringRedisTemplate.opsForValue().set("key", "redis", 10);

//      stringRedisTemplate.opsForValue().set("key", "redis", 6);
        System.out.println(stringRedisTemplate.opsForValue().get("key"));
        Thread.sleep(1100);
        System.out.println(stringRedisTemplate.opsForValue().get("key"));
    }

    @Test
    public void StringDemo4() {
        redisTemplate.opsForValue().set("name", "test");
        //若key不存在，设值
        redisTemplate.opsForValue().setIfAbsent("name", "test2");
        System.out.println(redisTemplate.opsForValue().get("name"));//还是test
    }

    @Test
    public void StringDemo5() {
        //批量k,v设值
        Map map = new HashMap();
        map.put("k1", "v1");
        map.put("k2", "v2");
        map.put("k3", "v3");
        redisTemplate.opsForValue().multiSet(map);

        //批量取值
        List keys = new ArrayList();
        keys.add("k1");
        keys.add("k2");
        keys.add("k3");
        List values = redisTemplate.opsForValue().multiGet(keys);
        System.out.println(values);

        //批量设值，若key不存在，设值
        //redisTemplate.opsForValue().multiSetIfAbsent(map);

    }

    @Test
    public void StringDemo6() {
        redisTemplate.opsForValue().set("name", "bpf");
        //设值并返回旧值，无旧值返回null
        System.out.println(redisTemplate.opsForValue().getAndSet("ttt", "calvin"));
    }

    @Test
    public void StringDemo7() {
        //自增操作，原子性。可以对long进行double自增，但不能对double进行long自增，会抛出异常
        redisTemplate.opsForValue().increment("count", 1L);//增量为long
        System.out.println(redisTemplate.opsForValue().get("count"));

        redisTemplate.opsForValue().increment("count", 1.1);//增量为double
        System.out.println(redisTemplate.opsForValue().get("count"));
    }

    @Test
    public void StringDemo8() {
        //key不存在，设值
        redisTemplate.opsForValue().append("str", "hello");
        System.out.println(redisTemplate.opsForValue().get("str"));
        //key存在，追加
        redisTemplate.opsForValue().append("str", " world");
        System.out.println(redisTemplate.opsForValue().get("str"));

    }

    @Test
    public void StringDemo9() {
        redisTemplate.opsForValue().set("key", "hello world");
        //value的长度
        System.out.println(redisTemplate.opsForValue().size("key"));//11
    }

    @Test
    public void StringDemo10() {
        redisTemplate.opsForValue().set("bitTest","a");
        // 'a' 的ASCII码是 97  转换为二进制是：01100001
        // 'b' 的ASCII码是 98  转换为二进制是：01100010
        // 'c' 的ASCII码是 99  转换为二进制是：01100011

        //因为二进制只有0和1，在setbit中true为1，false为0，因此我要变为'b'的话第六位设置为1，第七位设置为0
        redisTemplate.opsForValue().setBit("bitTest",6, true);
        redisTemplate.opsForValue().setBit("bitTest",7, false);
        System.out.println(redisTemplate.opsForValue().get("bitTest"));

        //判断offset处是true1还是false0
        System.out.println(redisTemplate.opsForValue().getBit("bitTest",7));
    }


    //Hash
    @Test
    public void hashDemo1(){
        redisTemplate.opsForHash().put("p1","name","zhangsan");
        redisTemplate.opsForHash().put("p1","age","21");
        redisTemplate.opsForHash().put("p1","gender","true");


    }




    @Test
    public void demo1() {
        //put方法
        redisTemplate.opsForHash().put("k1", "name", "zhangshan");
        redisTemplate.opsForHash().put("k1", "age", "20");
        redisTemplate.opsForHash().put("k1", "height", "170");

        //hashKey不存在时，才设值
        //redisTemplate.opsForHash().putIfAbsent(key, hashKey, value)
    }

    @Test
    public void demo2() {
        //putAll方法
        Map data = new HashMap<>();
        data.put("name", "jack ma");
        data.put("company", "alibaba");
        data.put("age", "500");
        redisTemplate.opsForHash().putAll("k2", data);
    }

    @Test
    public void demo3() {
        //delete方法，删除key对应的hash的hashkey及其value
        redisTemplate.opsForHash().delete("k2", "name");
    }

    @Test
    public void demo4() {
        //hasKey方法，确定hashkey是否存在
        System.out.println(redisTemplate.opsForHash().hasKey("k2", "name"));
    }

    @Test
    public void demo5() {
        //get方法，根据key和hashkey找出对应的值
        System.out.println(redisTemplate.opsForHash().get("k1", "name"));
    }

    @Test
    public void demo6() {
        //multiGet方法，根据key和多个hashkey找出对应的多个值
        Collection