springboot+redis+QuartzConfig点赞功能的实现

首先，在pom.xml文件中添加redis和quartz依赖：

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

<dependency>
  <groupId>org.quartz-scheduler</groupId>
  <artifactId>quartz</artifactId>
  <version>2.3.2</version>
</dependency>

然后在application.properties文件中添加redis和quartz的配置：

spring.redis.host=localhost
spring.redis.port=6379
spring.redis.password=
spring.redis.database=0

# Quartz Configuration
org.quartz.scheduler.instanceName = QuartzScheduler
org.quartz.scheduler.instanceId = AUTO
org.quartz.threadPool.threadCount = 10

接着，创建一个RedisService类来操作Redis：

@Service
public class RedisService {
    @Autowired
    private RedisTemplate<String, Object> redisTemplate;

    public Long incr(String key) {
        return redisTemplate.opsForValue().increment(key);
    }

    public Long decr(String key) {
        return redisTemplate.opsForValue().decrement(key);
    }

    public Object get(String key) {
        return redisTemplate.opsForValue().get(key);
    }

    public void set(String key, Object value) {
        redisTemplate.opsForValue().set(key, value);
    }
}

然后，创建一个LikeJob类来定时将点赞次数写入数据库：

public class LikeJob implements Job {
    @Autowired
    private RedisService redisService;
    @Autowired
    private LikeService likeService;

    @Override
    public void execute(JobExecutionContext context) throws JobExecutionException {
        Object likeCount = redisService.get("like_count");
        if (likeCount != null) {
            int count = Integer.parseInt(likeCount.toString());
            likeService.writeLikeCount(count);
            redisService.set("like_count", 0);
        }
    }
}

最后，创建一个LikeController类来接收点赞请求：

@RestController
public class LikeController {
    @Autowired
    private RedisService redisService;

    @GetMapping("/like")
    public String like() {
        redisService.incr("like_count");
        return "success";
    }
}

这样，每次访问 /like 接口时，Redis中的like_count计数器就会加1，而定时任务会在固定时间将计数器的值写入数据库，并将计数器重置为0。这样就实现了点赞功能。