Redis之SpringDataRedis用法详解

<dependency>
    <!--redia依赖-->
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-redis</artifactId>
</dependency>
    <!--common-pool-->
    <dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-pool2</artifactId>
</dependency>

spring:
  data:
    redis:
      host: 192.168.30.130
      port: 6379
      password: xxxxxx
      pool:
        max-active: 8
        max-idle: 8
        min-idle: 0
        max-wait: 100ms

@SpringBootTest
class RedisDemoApplicationTests {
    @Autowired
    private RedisTemplate redisTemplate;
    @Test
    void testString() {
        //写入一条String数据
        redisTemplate.opsForValue().set("name","虎哥");
        //获取string数据
        Object name = redisTemplate.opsForValue().get("name");
        System.out.println("name = " + name);
    }

}

@SpringBootTest
class RedisStringTests {
    @Autowired
    private StringRedisTemplate stringRedisTemplate;
    
    @Test
    void testString() {
        //写入一条String数据
        stringRedisTemplate.opsForValue().set("name","虎哥");
        //获取string数据
        Object name = stringRedisTemplate.opsForValue().get("name");
        System.out.println("name = " + name);
    }
    
    private static final ObjectMapper mapper = new ObjectMapper();
    @Test
    void testSaveUser() throws JsonProcessingException {
        //创建对象
        User user = new User("虎哥", 21);
        //手动序列化
        String json = mapper.writeValueAsString(user);
        //写入数据
        stringRedisTemplate.opsForValue().set("user:200",json);
        //获取数据
        String jsonUser = stringRedisTemplate.opsForValue().get("user:200");
        //手动反序列化
        User user1 = mapper.readValue(jsonUser, User.class);
        System.out.println("user1 = " + user1);
    }

    @Test
    void testHash() {
        stringRedisTemplate.opsForHash().put("user:400","name","虎哥");
        stringRedisTemplate.opsForHash().put("user:400","age","21");

        Map<Object, Object> entries = stringRedisTemplate.opsForHash().entries("user:400");
        System.out.println("entries = " + entries);
    }
}