事件调度：系统支持Cron、子任务触发、事件触发（API）三种方式触发任务调度；

doc/XXL-JOB官方文档.md

 - 7、执行器注册线程销毁时, 主动摘除注册机器信息，提高执行器注册的实时性；
 - 8、调度中心任务监控线程销毁时，批量对失败任务告警，防止告警信息丢失；
 - 9、调度中心API服务：支持API方式触发任务执行；
+- 10、事件调度：系统支持Cron、子任务触发、事件触发（API）三种方式触发任务调度；
 
 ### TODO LIST
 - 1、任务权限管理：执行器为粒度分配权限，核心操作校验权限；

xxl-job-admin/src/main/java/com/xxl/job/admin/core/trigger/XxlJobTrigger.java

 
         // load data
         XxlJobInfo jobInfo = XxlJobDynamicScheduler.xxlJobInfoDao.loadById(jobId);              // job info
+        if (jobInfo == null) {
+            logger.warn(">>>>>>>>>>>> xxl-job trigger fail, jobId invalid，jobId={}", jobId);
+            return;
+        }
         XxlJobGroup group = XxlJobDynamicScheduler.xxlJobGroupDao.load(jobInfo.getJobGroup());  // group info
 
         ExecutorBlockStrategyEnum blockStrategy = ExecutorBlockStrategyEnum.match(jobInfo.getExecutorBlockStrategy(), ExecutorBlockStrategyEnum.SERIAL_EXECUTION);  // block strategy

xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/AdminBizImpl.java

                 for (int i = 0; i < childJobKeys.length; i++) {
                     String[] jobKeyArr = childJobKeys[i].split("_");
                     if (jobKeyArr!=null && jobKeyArr.length==2) {
-                        XxlJobInfo childJobInfo = xxlJobInfoDao.loadById(Integer.valueOf(jobKeyArr[1]));
-                        if (childJobInfo!=null) {
-                            try {
-                                boolean ret = XxlJobDynamicScheduler.triggerJob(String.valueOf(childJobInfo.getId()), String.valueOf(childJobInfo.getJobGroup()));
-
-                                // add msg
-                                childTriggerMsg += MessageFormat.format("<br> {0}/{1} 触发子任务成功, 子任务Key: {2}, status: {3}, 子任务描述: {4}",
-                                        (i+1), childJobKeys.length, childJobKeys[i], ret, childJobInfo.getJobDesc());
-                            } catch (SchedulerException e) {
-                                logger.error(e.getMessage(), e);
-                            }
-                        } else {
-                            childTriggerMsg += MessageFormat.format("<br> {0}/{1} 触发子任务失败, 子任务xxlJobInfo不存在, 子任务Key: {2}",
-                                    (i+1), childJobKeys.length, childJobKeys[i]);
-                        }
+                        ReturnT<String> triggerChildResult = xxlJobService.triggerJob(Integer.valueOf(jobKeyArr[1]));
+                        // add msg
+                        childTriggerMsg += MessageFormat.format("<br> {0}/{1} 触发子任务{2}, 子任务Key: {3}, 子任务触发备注: {4}",
+                                (i+1), childJobKeys.length, (triggerChildResult.getCode()==ReturnT.SUCCESS_CODE?"成功":"失败"), childJobKeys[i], triggerChildResult.getMsg());
                     } else {
                         childTriggerMsg += MessageFormat.format("<br> {0}/{1} 触发子任务失败, 子任务Key格式错误, 子任务Key: {2}",
                                 (i+1), childJobKeys.length, childJobKeys[i]);

xxl-job-admin/src/main/java/com/xxl/job/admin/service/impl/XxlJobServiceImpl.java

 	@Override
 	public ReturnT<String> triggerJob(int id) {
         XxlJobInfo xxlJobInfo = xxlJobInfoDao.loadById(id);
+        if (xxlJobInfo == null) {
+        	return new ReturnT<String>(ReturnT.FAIL_CODE, "任务ID非法");
+		}
+
         String group = String.valueOf(xxlJobInfo.getJobGroup());
         String name = String.valueOf(xxlJobInfo.getId());
 
 			return ReturnT.SUCCESS;
 		} catch (SchedulerException e) {
 			logger.error(e.getMessage(), e);
-			return ReturnT.FAIL;
+			return new ReturnT<String>(ReturnT.FAIL_CODE, e.getMessage());
 		}
 	}
 

xxl-job-admin/src/main/webapp/WEB-INF/template/common/common.macro.ftl

 <#macro commonHeader>
 	<header class="main-header">
 		<a href="${request.contextPath}/" class="logo">
-			<span class="logo-mini"><b>X</b>XL</span>
-			<span class="logo-lg"><b>任务调度</b>中心</span>
+			<span class="logo-mini"><b>XXL</b></span>
+			<span class="logo-lg"><b>任务调度中心</b></span>
 		</a>
 		<nav class="navbar navbar-static-top" role="navigation">
 			<a href="#" class="sidebar-toggle" data-toggle="offcanvas" role="button"><span class="sr-only">切换导航</span></a>