利用Linux中的crontab实现分布式项目定时任务

@Controller
@RequestMapping("/task/topic")
public class TopicQuartzController {
protected Logger logger = LoggerFactory.getLogger(TopicQuartzController.class);
@Autowired
private LiveTopicService liveTopicService;

@RequestMapping("execute")
@ResponseBody
public CommonResult execute(HttpServletRequest request,HttpServletResponse response,String type){
long t1 = System.currentTimeMillis();
logger.error("topic定时器执行开始"+type);
CommonResult result = new CommonResult();
if(QlchatUtil.isEmpty(type)){
result.setMsg("参数为空");
result.setSuccess(false);
return result;
}
try {
switch (type) {
case "autoEndTopic":
this.autoEndTopic();
break;
case "oneWeek":
this.endTopicOneWeek();
break;
default:
break;
}
result.setSuccess(true);
result.setMsg("执行完成" + type);
} catch (Exception e) {
logger.error("topic定时器执行异常" + type, e);
result.setMsg("topic定时器执行异常" + type);
result.setSuccess(false);
}
long t2 = System.currentTimeMillis();
logger.error("topic定时器执行结束"+type+",耗时="+(t2 - t1) + "ms");
return result;
}

private void autoEndTopic(){
String sql = "SELECT id_ topicId FROM skg_live_topic lt WHERE lt.`status_` = 'beginning' AND lt.end_time_ IS NOT NULL AND lt.`end_time_` < NOW()";
JdbcTemplate jdbcTemplate = SpringHelper.getBean(JdbcTemplate.class);
List<Map<String, Object>> resultMap = jdbcTemplate.queryForList(sql);
for (Map<String, Object> map : resultMap) {
String topicId = String.valueOf(map.get("topicId"));
try {
LiveTopicPo liveTopicPo = liveTopicService.loadCache(topicId);
liveTopicService.endTopic(liveTopicPo, liveTopicPo.getCreateBy());
}catch (Exception e){
logger.error("autoEndTopic异常" + topicId, e);
}
}
}

/**
 * 结束之前的没有结束时间的话题，只跑一周
 */
private void endTopicOneWeek(){
String sql = "SELECT id_ topicId FROM skg_live_topic lt WHERE lt.`status_` = 'beginning' AND lt.end_time_ IS NULL AND lt.start_time_ <= (NOW() - interval 48 hour)";
JdbcTemplate jdbcTemplate = SpringHelper.getBean(JdbcTemplate.class);
List<Map<String, Object>> resultMap = jdbcTemplate.queryForList(sql);
for (Map<String, Object> map : resultMap) {
String topicId = String.valueOf(map.get("topicId"));
try {
LiveTopicPo liveTopicPo = liveTopicService.loadCache(topicId);
liveTopicService.endTopic(liveTopicPo, liveTopicPo.getCreateBy());
}catch (Exception e){
logger.error("autoEndTopic异常" + topicId, e);
}
}
}
}

像上面这样写好定时任务的逻辑类

创建一个contab.txt

*/30 * * * * curl 'http://10.47.161.40:8181/task/topic/execute.do?type=oneWeek'

*/30 * * * * curl 'http://10.47.161.40:8181/task/topic/execute.do?type=autoEndTopic'

里面这样调用方法去执行即可实现分布式项目的定时任务

上面即每30分钟执行一次