失败重试完整支持：任务流程分为调度和执行，之前仅支持调度失败的重试；目前支持执行失败的重试，通过任务返回值判断。

doc/XXL-JOB官方文档.md

 - 11、任务Cron长度扩展支持至128位；
 - 12、调度报表优化，支持时间区间筛选；
 - 13、Log组件支持输出异常栈信息，底层实现优化；
+- 14、失败重试完整支持：任务流程分为调度和执行，之前仅支持调度失败的重试；目前支持执行失败的重试，通过任务返回值判断。
 
 ### 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；
 - 16、任务告警邮件优化，调整为表格形式；
 - 17、JobHandler提供 init/destroy 方法，支持自定义任务线程销毁逻辑；
 - 18、执行器回调地址/日志地址格式兼容，是否已"/"结尾均支持；
-- 19、失败重试完整支持：任务流程分为触发和执行，目前仅支持触发失败的重试；后续支持任务执行失败的重试，通过任务返回值判断。
+
 
 
 

xxl-job-admin/src/main/java/com/xxl/job/admin/core/thread/JobFailMonitorHelper.java

 import com.xxl.job.admin.core.schedule.XxlJobDynamicScheduler;
 import com.xxl.job.admin.core.util.MailUtil;
 import com.xxl.job.core.biz.model.ReturnT;
+import com.xxl.job.core.handler.IJobHandler;
 import org.apache.commons.collections.CollectionUtils;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 								if (log == null) {
 									continue;
 								}
-								if (ReturnT.SUCCESS_CODE == log.getTriggerCode() && log.getHandleCode() == 0) {
+								if (IJobHandler.SUCCESS.getCode() == log.getTriggerCode() && log.getHandleCode() == 0) {
 									JobFailMonitorHelper.monitor(jobLogId);
 									logger.info(">>>>>>>>>>> job monitor, job running, JobLogId:{}", jobLogId);
-								} else if (ReturnT.SUCCESS_CODE == log.getTriggerCode() && ReturnT.SUCCESS_CODE == log.getHandleCode()) {
+								} else if (IJobHandler.SUCCESS.getCode() == log.getHandleCode()) {
 									// job success, pass
 									logger.info(">>>>>>>>>>> job monitor, job success, JobLogId:{}", jobLogId);
-								} else if (ReturnT.FAIL_CODE == log.getTriggerCode() || ReturnT.FAIL_CODE == log.getHandleCode()) {
+								} else if (IJobHandler.FAIL.getCode() == log.getTriggerCode()
+										|| IJobHandler.FAIL.getCode() == log.getHandleCode()
+										|| IJobHandler.FAIL_RETRY.getCode() == log.getHandleCode() ) {
 									// job fail,
 									failAlarm(log);
 									logger.info(">>>>>>>>>>> job monitor, job fail, JobLogId:{}", jobLogId);

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

             // 4.3、trigger (fail retry)
             if (triggerResult.getCode()!=ReturnT.SUCCESS_CODE && failStrategy == ExecutorFailStrategyEnum.FAIL_RETRY) {
                 triggerResult = executorRouteStrategyEnum.getRouter().routeRun(triggerParam, addressList);
-                triggerMsgSb.append("<br><br><span style=\"color:#F39C12;\" > >>>>>>>>>>>失败重试<<<<<<<<<<< </span><br>").append(triggerResult.getMsg());
+                triggerMsgSb.append("<br><br><span style=\"color:#F39C12;\" > >>>>>>>>>>>调度失败重试<<<<<<<<<<< </span><br>").append(triggerResult.getMsg());
             }
         }
 

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

 import com.xxl.job.core.biz.model.HandleCallbackParam;
 import com.xxl.job.core.biz.model.RegistryParam;
 import com.xxl.job.core.biz.model.ReturnT;
+import com.xxl.job.core.handler.IJobHandler;
 import org.apache.commons.lang.StringUtils;
 import org.quartz.SchedulerException;
 import org.slf4j.Logger;
         for (HandleCallbackParam handleCallbackParam: callbackParamList) {
             ReturnT<String> callbackResult = callback(handleCallbackParam);
             logger.info(">>>>>>>>> JobApiController.callback {}, handleCallbackParam={}, callbackResult={}",
-                    (callbackResult.getCode()==ReturnT.SUCCESS_CODE?"success":"fail"), handleCallbackParam, callbackResult);
+                    (callbackResult.getCode()==IJobHandler.SUCCESS.getCode()?"success":"fail"), handleCallbackParam, callbackResult);
         }
 
         return ReturnT.SUCCESS;
         if (log == null) {
             return new ReturnT<String>(ReturnT.FAIL_CODE, "log item not found.");
         }
+        if (log.getHandleCode() > 0) {
+            return new ReturnT<String>(ReturnT.FAIL_CODE, "log repeate callback.");     // avoid repeat callback, trigger child job etc
+        }
 
-        // trigger success, to trigger child job, and avoid repeat trigger child job
-        String childTriggerMsg = null;
-        if (ReturnT.SUCCESS_CODE==handleCallbackParam.getExecuteResult().getCode() && ReturnT.SUCCESS_CODE!=log.getHandleCode()) {
+        // trigger success, to trigger child job
+        String callbackMsg = null;
+        if (IJobHandler.SUCCESS.getCode() == handleCallbackParam.getExecuteResult().getCode()) {
             XxlJobInfo xxlJobInfo = xxlJobInfoDao.loadById(log.getJobId());
             if (xxlJobInfo!=null && StringUtils.isNotBlank(xxlJobInfo.getChildJobKey())) {
-                childTriggerMsg = "<hr>";
+                callbackMsg = "<br><br><span style=\"color:#00c0ef;\" > >>>>>>>>>>>触发子任务<<<<<<<<<<< </span><br>";
+
                 String[] childJobKeys = xxlJobInfo.getChildJobKey().split(",");
                 for (int i = 0; i < childJobKeys.length; i++) {
                     String[] jobKeyArr = childJobKeys[i].split("_");
                     if (jobKeyArr!=null && jobKeyArr.length==2) {
                         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());
+                        callbackMsg += MessageFormat.format("{0}/{1} [JobKey={2}], 触发{3}, 触发备注: {4} <br>",
+                                (i+1), childJobKeys.length, childJobKeys[i], (triggerChildResult.getCode()==ReturnT.SUCCESS_CODE?"成功":"失败"), 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}",
+                        callbackMsg += MessageFormat.format(" {0}/{1} [JobKey={2}], 触发失败, 触发备注: JobKey格式错误 <br>",
                                 (i+1), childJobKeys.length, childJobKeys[i]);
                     }
                 }
 
             }
+        } else if (IJobHandler.FAIL_RETRY.getCode() == handleCallbackParam.getExecuteResult().getCode()){
+            ReturnT<String> retryTriggerResult = xxlJobService.triggerJob(log.getJobId());
+            callbackMsg = "<br><br><span style=\"color:#F39C12;\" > >>>>>>>>>>>执行失败重试<<<<<<<<<<< </span><br>";
+
+            callbackMsg += MessageFormat.format("触发{0}, 触发备注: {1}",
+                   (retryTriggerResult.getCode()==ReturnT.SUCCESS_CODE?"成功":"失败"), retryTriggerResult.getMsg());
         }
 
         // handle msg
         if (handleCallbackParam.getExecuteResult().getMsg() != null) {
             handleMsg.append(handleCallbackParam.getExecuteResult().getMsg());
         }
-        if (childTriggerMsg !=null) {
-            handleMsg.append("<br>子任务触发备注：").append(childTriggerMsg);
+        if (callbackMsg != null) {
+            handleMsg.append(callbackMsg);
         }
 
         // success, save log

xxl-job-admin/src/main/webapp/static/js/joblog.index.1.js

 					{
 						"data": 'triggerCode',
 						"render": function ( data, type, row ) {
-							return (data==200)?'<span style="color: green">成功</span>':(data==500)?'<span style="color: red">失败</span>':(data==0)?'':data;
+							var html = data;
+							if (data == 200) {
+								html = '<span style="color: green">成功</span>';
+							} else if (data == 500) {
+								html = '<span style="color: red">失败</span>';
+							} else if (data == 0) {
+                                html = '';
+							}
+                            return html;
 						}
-
 					},
 					{
 						"data": 'triggerMsg',
 	                {
 						"data": 'handleCode',
 						"render": function ( data, type, row ) {
-							return (data==200)?'<span style="color: green">成功</span>':(data==500)?'<span style="color: red">失败</span>':(data==0)?'':data;
+                            var html = data;
+                            if (data == 200) {
+                                html = '<span style="color: green">成功</span>';
+                            } else if (data == 500) {
+                                html = '<span style="color: red">失败</span>';
+                            } else if (data == 501) {
+                                html = '<span style="color: red">失败重试</span>';
+                            } else if (data == 0) {
+                                html = '';
+                            }
+                            return html;
 						}
 	                },
 	                { 

xxl-job-core/src/main/java/com/xxl/job/core/handler/IJobHandler.java

 import com.xxl.job.core.biz.model.ReturnT;
 
 /**
- * remote job handler
+ * job handler
+ *
  * @author xuxueli 2015-12-19 19:06:38
  */
 public abstract class IJobHandler {
 
+	/** success */
+	public static final ReturnT<String> SUCCESS = new ReturnT<String>(200, null);
+	/** fail */
+	public static final ReturnT<String> FAIL = new ReturnT<String>(500, null);
+	/** fail retry */
+	public static final ReturnT<String> FAIL_RETRY = new ReturnT<String>(501, null);
+
+
 	/**
 	 * job handler
 	 * @param params

xxl-job-core/src/main/java/com/xxl/job/core/handler/impl/ScriptJobHandler.java

         // invoke
         XxlJobLogger.log("----------- script file:"+ scriptFileName +" -----------");
         int exitValue = ScriptUtil.execToFile(cmd, scriptFileName, logFileName, params);
-        ReturnT<String> result = (exitValue==0)?ReturnT.SUCCESS:new ReturnT<String>(ReturnT.FAIL_CODE, "script exit value("+exitValue+") is failed");
+        ReturnT<String> result = (exitValue==0)?IJobHandler.SUCCESS:new ReturnT<String>(IJobHandler.FAIL.getCode(), "script exit value("+exitValue+") is failed");
         return result;
     }
 

xxl-job-core/src/main/java/com/xxl/job/core/thread/JobThread.java

 					XxlJobLogger.log("<br>----------- xxl-job job execute start -----------<br>----------- Params:" + Arrays.toString(handlerParams));
 					executeResult = handler.execute(handlerParams);
 					if (executeResult == null) {
-						executeResult = ReturnT.FAIL;
+						executeResult = IJobHandler.FAIL;
 					}
 					XxlJobLogger.log("<br>----------- xxl-job job execute end(finish) -----------<br>----------- ReturnT:" + executeResult);
 

xxl-job-executor-samples/xxl-job-executor-sample-jfinal/src/main/java/com/xuxueli/executor/sample/jfinal/jobhandler/DemoJobHandler.java

 			XxlJobLogger.log("beat at:" + i);
 			TimeUnit.SECONDS.sleep(2);
 		}
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 
 }

xxl-job-executor-samples/xxl-job-executor-sample-jfinal/src/main/java/com/xuxueli/executor/sample/jfinal/jobhandler/ShardingJobHandler.java

 			}
 		}
 
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 	
 }

xxl-job-executor-samples/xxl-job-executor-sample-spring/src/main/java/com/xxl/job/executor/service/jobhandler/DemoJobHandler.java

 			XxlJobLogger.log("beat at:" + i);
 			TimeUnit.SECONDS.sleep(2);
 		}
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 	
 }

xxl-job-executor-samples/xxl-job-executor-sample-spring/src/main/java/com/xxl/job/executor/service/jobhandler/ShardingJobHandler.java

 			}
 		}
 
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 	
 }

xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/service/jobhandler/DemoJobHandler.java

 			XxlJobLogger.log("beat at:" + i);
 			TimeUnit.SECONDS.sleep(2);
 		}
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 
 }

xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/java/com/xxl/job/executor/service/jobhandler/ShardingJobHandler.java

 			}
 		}
 
-		return ReturnT.SUCCESS;
+		return SUCCESS;
 	}
 
 }