首先创建一个maven的项目 导入jedis的坐标

  <dependencies>
<!--        jedis 坐标-->
        <dependency>
            <groupId>redis.clients</groupId>
            <artifactId>jedis</artifactId>
            <version>4.1.1</version>
        </dependency>
<!--        测试-->
        <dependency>
            <groupId>org.junit.jupiter</groupId>
            <artifactId>junit-jupiter</artifactId>
            <version>5.8.2</version>
            <scope>test</scope>
        </dependency>
    </dependencies>

编写测试类

public class Test {

    private Jedis jedis;



    @BeforeEach//初始化操作
    void setUp() {
        //建立连接
        jedis=new Jedis("120.77.79.169",6379);
        //设置密码
        jedis.auth("123321");
        //选择库
        jedis.select(0);
    }

    @org.junit.jupiter.api.Test
    void name() {
        String l = jedis.set("name", "路韶聪");
        System.out.println("l = " + l);
        String s = jedis.get("name");
        System.out.println("s = " + s);

    }
    @org.junit.jupiter.api.Test
    void hashset() {
        jedis.hset("name:1","name","路韶聪");
        jedis.hset("name:1","age","18");

        Map<String, String> stringStringMap = jedis.hgetAll("name:1");
        System.out.println("stringStringMap = " + stringStringMap);

    }

    @AfterEach
    void tearDown() {
        if (jedis!=null){
            jedis.close();
        }
    }
}

    @Autowired//以下是客户端 的操作方法 用stringRedisTemplate  以后用户多的也是这种方法
    private StringRedisTemplate stringRedisTemplate;
    //json工具 把对象转换为json格式
   private static final ObjectMapper objectMapper = new ObjectMapper();

    @Test
    void te() {
        ValueOperations<String, String> ops = stringRedisTemplate.opsForValue();
        ops.set("mgs", "路韶");
    }

    @Test
    void t() {
        ValueOperations<String, String> ops = stringRedisTemplate.opsForValue();
        String mgs = ops.get("mgs");
        System.out.println("mgs = " + mgs);
    }

    @Test//存一个user对象
    void setUser() throws JsonProcessingException {
        User user = new User("周冬雨", 18);
        String json = objectMapper.writeValueAsString(user);
        stringRedisTemplate.opsForValue().set("user:200",json);//存入对象
        String userjson = stringRedisTemplate.opsForValue().get("user:200");
        //取出对象
        User user1 = objectMapper.readValue(userjson, User.class);
        System.out.println("user1 = " + user1);

    }
}

    <dependencies>
<!--        redis依赖-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-redis</artifactId>
        </dependency>
<!--        连接池的依赖commons-pool2-->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-pool2</artifactId>
        </dependency>


        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
        </dependency>
        <dependency>//json转换工具
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

工具查看存入的数据对象