XXL-JOB demo该如何使用？

示例1：实现简单任务配置，只需要继承IJobHandler 抽象类，并声明注解

@JobHandler(value="offlineTaskJobHandler") ，实现业务逻辑即可。（注：此次引入了dubbo，后文介绍）。

@JobHandler(value="offlineTaskJobHandler")
@Component
public class OfflineTaskJobHandler extends IJobHandler {
  
   @Reference(check = false,version = "cms-dev",group="cms-service")
   private OfflineTaskExecutorFacade offlineTaskExecutorFacade;
  
   @Override
   public ReturnT<String> execute(String param) throws Exception {
      XxlJobLogger.log(" offlineTaskJobHandler start.");
  
      try {
         offlineTaskExecutorFacade.executeOfflineTask();
      } catch (Exception e) {
         XxlJobLogger.log("offlineTaskJobHandler-->exception." , e);
         return FAIL;
      }
  
      XxlJobLogger.log("XXL-JOB, offlineTaskJobHandler end.");
      return SUCCESS;
   }
}

示例2：分片广播任务。

@JobHandler(value="shardingJobHandler")
@Service
public class ShardingJobHandler extends IJobHandler {
  
   @Override
   public ReturnT<String> execute(String param) throws Exception {
  
      // 分片参数
      ShardingUtil.ShardingVO shardingVO = ShardingUtil.getShardingVo();
      XxlJobLogger.log("分片参数：当前分片序号 = {}, 总分片数 = {}", shardingVO.getIndex(), shardingVO.getTotal());
  
      // 业务逻辑
      for (int i = 0; i < shardingVO.getTotal(); i++) {
         if (i == shardingVO.getIndex()) {
            XxlJobLogger.log("第 {} 片, 命中分片开始处理", i);
         } else {
            XxlJobLogger.log("第 {} 片, 忽略", i);
         }
      }
  
      return SUCCESS;
   }
}