RedisTemplate操作Redis数据：Hash类型

Redis的Hash可以存储多个KV对

操作比较简单，如下

redis:0>hset testHash 0571 hangzhou
"1"
redis:0>hset testHash 021 shanghai
"1"
redis:0>hset testHash 010 beijing
"1"
redis:0>hkeys testHash

redis:0>getall testHash
"ERR unknown command 'getall'"
redis:0>hgetall testHash
 1)  "0571"
 2)  "hangzhou"
 3)  "021"
 4)  "shanghai"
 5)  "010"
 6)  "beijing"
redis:0>hget testHash 0571
"hangzhou"
redis:0>hget testHash 010
"beijing"
redis:0>hget testHash 021
"shanghai"
redis:0>hdel testHash 0571
"1"
redis:0>hgetall testHash
 1)  "021"
 2)  "shanghai"
 3)  "010"
 4)  "beijing"
redis:0>hdel testHash 021
"1"
redis:0>hdel testHash 010
"1"
redis:0>hgetall testHash

调用RedisTemplate如下

public class RedisTest extends BaseTest {
    
    @Resource
    private RedisTemplate redisTemplate;
    
    @Test(description = "哈希散列")
    public void redisHashTest() {
        redisTemplate.opsForHash().put("testHash", "0571", "hangzhou");
        redisTemplate.opsForHash().put("testHash", "021", "shanghai");
        redisTemplate.opsForHash().put("testHash", "010", "beijing");
        Assert.assertEquals(redisTemplate.opsForHash().get("testHash", "0571"), "hangzhou");
        Assert.assertEquals(redisTemplate.opsForHash().get("testHash", "021"), "shanghai");
        Assert.assertEquals(redisTemplate.opsForHash().get("testHash", "010"), "beijing");
        redisTemplate.opsForHash().delete("testHash", "0571");
        redisTemplate.opsForHash().delete("testHash", "021");
        redisTemplate.opsForHash().delete("testHash", "010");
        System.out.println(redisTemplate.opsForHash().size("testHash"));
    }
}

比较直接