SpringBoot 操作 Redis

导入对应版本的依赖

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

修改配置文件中的信息

spring:
  redis:
    host: 127.0.0.1
    port: 8888

注意: 我这里 xshell 中将 redis 的端口映射到了本机的 8888 端口, 你们映射了啥, 这里的 port 就写啥

写代码

SpringBoot 是通过 redisTemplate 对象 对 Redis 进行操作
redisTemplate 对 Redis 中的每个类型进行了封装, 使用对应类型的对应方法要先选择操作类型

String 类型

@Autowired
privateStringRedisTemplate redisTemplate;

@RequestMapping("/testString")
public void testString() {
    redisTemplate.opsForValue(). set("key1", "value1");
    redisTemplate.opsForValue(). set("key2", "value2");
    redisTemplate.opsForValue(). set("key3", "value3");

    System.out.println(redisTemplate.opsForValue().get("key1"));
    System.out.println(redisTemplate.opsForValue().get("key2"));
    System.out.println(redisTemplate.opsForValue().get("key3"));
}

List 类型

@Autowired
private StringRedisTemplate redisTemplate;

@RequestMapping("/testList")
public void testList() {
    //删库操作
    redisTemplate.execute((RedisConnection connection) -> {
        // execute 要求我们的回调方法中, 必须返回一个内容
        // 该回调返回的对象, 就是 execute 返回的内容
        connection.flushAll();
        return null;
    });

    redisTemplate.opsForList().leftPush("key", "val");
    redisTemplate.opsForList().leftPush("key", "val2");
    redisTemplate.opsForList().leftPush("key", "val3");

    System.out.println(redisTemplate.opsForList().rightPop("key"));
    System.out.println(redisTemplate.opsForList().rightPop("key"));
    System.out.println(redisTemplate.opsForList().rightPop("key"));
}

Set 类型

@Autowired
private StringRedisTemplate redisTemplate;

@RequestMapping("testSet")
public void testSet() {
    redisTemplate.execute((RedisConnection connection) -> {
        connection.flushAll();
        return null;
    });

    redisTemplate.opsForSet().add("key", "111", "222","333");
    System.out.println(redisTemplate.opsForSet().members("key"));
    System.out.println(redisTemplate.opsForSet().isMember("key", "111"));
    System.out.println(redisTemplate.opsForSet().isMember("key", "444"));
    System.out.println(redisTemplate.opsForSet().size("key"));
    redisTemplate.opsForSet().remove("key", "111","222");
    System.out.println(redisTemplate.opsForSet().members("key"));
}

Hash 类型

@Autowired
private StringRedisTemplate redisTemplate;

@RequestMapping("/testHash")
public void testHash() {
    redisTemplate.execute((RedisConnection connection) -> {
        connection.flushAll();
        return null;
    });

    redisTemplate.opsForHash().put("key", "f1", "111");
    redisTemplate.opsForHash().put("key", "f2", "222");
    redisTemplate.opsForHash().put("key", "f3", "333");

    System.out.println((String) redisTemplate.opsForHash().get("key", "f1"));
    System.out.println((String) redisTemplate.opsForHash().get("key", "f2"));
    System.out.println((String) redisTemplate.opsForHash().get("key", "f3"));

    System.out.println(redisTemplate.opsForHash().hasKey("key", "f1"));

    redisTemplate.opsForHash().delete("key", "f1");
    redisTemplate.opsForHash().delete("key", "f2");

    System.out.println(redisTemplate.opsForHash().size("key"));
}

ZSet 类型

@Autowired
private StringRedisTemplate redisTemplate;

@RequestMapping("/testZSet")
public void testZSet() {
    redisTemplate.execute((RedisConnection connection) -> {
        connection.flushAll();
        return null;
    });

    redisTemplate.opsForZSet().add("key", "zhangsan", 10);
    redisTemplate.opsForZSet().add("key", "lisi", 20);
    redisTemplate.opsForZSet().add("key", "wangwu", 30);

    Set<String> members = redisTemplate.opsForZSet().range("key", 0, -1);
    System.out.println(members);

    Set<ZSetOperations.TypedTuple<String>> membersWithScore =
            redisTemplate.opsForZSet().rangeWithScores("key", 0, -1);
    System.out.println(membersWithScore);

    System.out.println(redisTemplate.opsForZSet().score("key", "zhangsan"));

    redisTemplate.opsForZSet().remove("key", "zhangsan");

    System.out.println(redisTemplate.opsForZSet().size("key"));

    System.out.println(redisTemplate.opsForZSet().rank("key", "lisi"));
}