Redis 实现分布式锁

    private RedisTemplate redisTemplate;
  @Override
    public OperationOrderEntity edit(OperationOrderEntity entity) {
        //如果返回false，则说明该key值存在，已经有程序在使用这个key值，从而实现了分布式加锁的功能
        if (!redisTemplate.opsForValue().setIfAbsent(EDIT, new Date(), 10, TimeUnit.MINUTES)) {
            return null;
        }
        try {
            entity.setUpdateBy(getUsername());
            entity.setUpdateName(getUserNickName());
            entity.setUpdateTime(new Date());
            entity.setStateName(OperationOrderStateEnum.getNameByCode(entity.getState()));
            LambdaQueryWrapper<OperationOrderEntity> queryWrapper = new LambdaQueryWrapper<>();
            queryWrapper.eq(OperationOrderEntity::getOperationNumber, entity.getOperationNumber());
            this.update(entity, queryWrapper);
        } catch (Exception e) {
            log.error("编辑保存失败:", e);
        } finally {
            redisTemplate.delete(EDIT);
        }
        return entity;
    }

 pom 依赖

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