java中使用redis

@Component
public class RsUtil {

  @Resource
  public RedisTemplate<String, String> redisTemplate;

  @Autowired
  public PropertiesConfig properties;

  /**
   * 将数据插入redis
   *
   * @param key   索引
   * @param value 值
   */
  public void set(String key, String value) {
    ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
    if (properties.isTimeout()) {
      valueOperations.set(key, value, properties.getTokenExpires().longValue(), TimeUnit.SECONDS);
    } else {
      valueOperations.set(key, value);
    }
  }

  /**
   * 删除redis中数据
   *
   * @param key 索引
   */
  public void del(String key) {
    ValueOperations<String, String> vo = redisTemplate.opsForValue();
    RedisOperations<String, String> operations = vo.getOperations();
    operations.delete(key);
  }

  /**
   * 查询redis中数据
   *
   * @param key 索引
   * @return 查询结果
   */
  public String get(String key) {
    ValueOperations<String, String> valueOperations = redisTemplate.opsForValue();
    String value = valueOperations.get(key);
    if (value != null && !value.equals("")) {
      set(key, value);
    }
    return value;
  }

  /**
   * 查询redis中用户信息
   *
   * @param key 用户uuid
   * @return 用户信息
   */
  public UserListInfoDto getUser(String key) {
    if (key != null) {
      String value = get(key);
      if (value != null) {
        return JSONObject.parseObject(value, UserListInfoDto.class);
      }
    }
    return null;
  }

}