Spring Data Redis使用方式

Spring Boot提供了对应的Starter，maven坐标：

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>

Spring Data Redis中提供了一个高度封装的类：RedisTemplate，对相关api进行了归类封装,将同一类型操作封装为operation接口，具体分类如下：

• ValueOperations：string数据操作

• SetOperations：set类型数据操作

• ZSetOperations：zset类型数据操作

• HashOperations：hash类型的数据操作

• ListOperations：list类型的数据操作

操作常见类型数据

1). 操作字符串类型数据

    /**
     * 操作字符串类型的数据
     */
    @Test
    public void testString(){
        // set get setex setnx
        redisTemplate.opsForValue().set("name","小明");
        String city = (String) redisTemplate.opsForValue().get("name");
        System.out.println(city);
        redisTemplate.opsForValue().set("code","1234",3, TimeUnit.MINUTES);
        redisTemplate.opsForValue().setIfAbsent("lock","1");
        redisTemplate.opsForValue().setIfAbsent("lock","2");
    }

2). 操作哈希类型数据

    /**
     * 操作哈希类型的数据
     */
    @Test
    public void testHash(){
        //hset hget hdel hkeys hvals
        HashOperations hashOperations = redisTemplate.opsForHash();
​
        hashOperations.put("100","name","tom");
        hashOperations.put("100","age","20");
​
        String name = (String) hashOperations.get("100", "name");
        System.out.println(name);
​
        Set keys = hashOperations.keys("100");
        System.out.println(keys);
​
        List values = hashOperations.values("100");
        System.out.println(values);
​
        hashOperations.delete("100","age");
    }

3). 操作列表类型数据

    /**
     * 操作列表类型的数据
     */
    @Test
    public void testList(){
        //lpush lrange rpop llen
        ListOperations listOperations = redisTemplate.opsForList();
​
        listOperations.leftPushAll("mylist","a","b","c");
        listOperations.leftPush("mylist","d");
​
        List mylist = listOperations.range("mylist", 0, -1);
        System.out.println(mylist);
​
        listOperations.rightPop("mylist");
​
        Long size = listOperations.size("mylist");
        System.out.println(size);
    }

4). 操作集合类型数据

    /**
     * 操作集合类型的数据
     */
    @Test
    public void testSet(){
        //sadd smembers scard sinter sunion srem
        SetOperations setOperations = redisTemplate.opsForSet();
​
        setOperations.add("set1","a","b","c","d");
        setOperations.add("set2","a","b","x","y");
​
        Set members = setOperations.members("set1");
        System.out.println(members);
​
        Long size = setOperations.size("set1");
        System.out.println(size);
​
        Set intersect = setOperations.intersect("set1", "set2");
        System.out.println(intersect);
​
        Set union = setOperations.union("set1", "set2");
        System.out.println(union);
​
        setOperations.remove("set1","a","b");
    }

5). 操作有序集合类型数据

    /**
     * 操作有序集合类型的数据
     */
    @Test
    public void testZset(){
        //zadd zrange zincrby zrem
        ZSetOperations zSetOperations = redisTemplate.opsForZSet();
​
        zSetOperations.add("zset1","a",10);
        zSetOperations.add("zset1","b",12);
        zSetOperations.add("zset1","c",9);
​
        Set zset1 = zSetOperations.range("zset1", 0, -1);
        System.out.println(zset1);
​
        zSetOperations.incrementScore("zset1","c",10);
​
        zSetOperations.remove("zset1","a","b");
    }

6). 通用命令操作

    /**
     * 通用命令操作
     */
    @Test
    public void testCommon(){
        //keys exists type del
        Set keys = redisTemplate.keys("*");
        System.out.println(keys);
​
        Boolean name = redisTemplate.hasKey("name");
        Boolean set1 = redisTemplate.hasKey("set1");
​
        for (Object key : keys) {
            DataType type = redisTemplate.type(key);
            System.out.println(type.name());
        }
​
        redisTemplate.delete("mylist");
    }