springboot 使用 quartz

导入依赖

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

　配置quartz

@Configuration
public class QuartzConfig {

    private static final String LIKE_TASK_IDENTITY = "LikeTaskQuartz";

    @Bean
    public JobDetail quartzDetail() {
        return JobBuilder.newJob(QuestionViewCountTask.class).withIdentity(LIKE_TASK_IDENTITY).storeDurably().build();
    }

    @Bean
    public Trigger quartzTrigger() {
        SimpleScheduleBuilder scheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
//                .withIntervalInSeconds(10)  //设置时间周期单位秒
                .withIntervalInHours(2)  //两个小时执行一次
                .repeatForever();
        return TriggerBuilder.newTrigger().forJob(quartzDetail())
                .withIdentity(LIKE_TASK_IDENTITY)
                .withSchedule(scheduleBuilder)
                .build();
    }
}

　实现定时任务

public class QuestionViewCountTask extends QuartzJobBean {
    private static final Logger log = LoggerFactory.getLogger(QuestionViewCountTask.class);


    private QuestionService questionService;
    private RedisTemplate redisTemplate;

    private final SimpleDateFormat taskTime = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    @Override
    protected void executeInternal(@NotNull JobExecutionContext jobExecutionContext) {
        ApplicationContext applicationContext = SpringContextUtil.getApplicationContext();
        redisTemplate = applicationContext.getBean("redisTemplate", RedisTemplate.class);
        questionService = applicationContext.getBean("questionService", QuestionService.class);
        log.info("LikeTask-------- {}", taskTime.format(new Date()));

        Map<String, Integer> redisMap = redisTemplate.opsForHash().entries(RedisCacheConstant.QUESTION_KEY);
        if (redisMap.size() > 0) {
            Set<String> keys = redisMap.keySet();

            List<QuestionPO> questionDOList = keys.stream().map(key -> {
                QuestionPO questionDO = new QuestionPO();
                questionDO.setId(Long.valueOf(key));
                questionDO.setViewCount(redisMap.get(key));
                return questionDO;
            }).collect(Collectors.toList());
            questionService.updateBatchById(questionDOList);
        }

    }
}

　　获取spring

@Component
public class SpringContextUtil implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext) {
        SpringContextUtil.applicationContext = applicationContext;
    }

    public static ApplicationContext getApplicationContext() {
        return applicationContext;
    }
}