修改注释和delay时间

@@ -97,7 +97,7 @@ public class TimeTaskServiceImpl implements ITimeTaskService {
 			Integer id = drawlineActivity.getId();
 			long endTime = drawlineActivity.getEndTime().longValue() * 1000;
 
-			// 判断活动是否过期，过期立即执行抽奖，否则延迟到活动结束后两分钟执行抽奖
+			// 判断活动是否过期，过期立即执行抽奖，否则活动结束前5分钟执行抽奖
 			if (currentTime > endTime) {
 				jsonArray.add(luckyDraw(id, endTime));
 			} else {
@@ -106,13 +106,15 @@ public class TimeTaskServiceImpl implements ITimeTaskService {
 				}
 				TIMETASK_LUCKYDRAW_LIST.add(id);
 
+				long delay = endTime - currentTime - 300000;
+				delay = 0 > delay ? 0 : delay;
 				LUCKYDRAW_TASK_EXE.schedule(new Runnable() {
 
 					@Override
 					public void run() {
 						luckyDraw(id, endTime);
 					}
-				}, endTime - currentTime - 300000, TimeUnit.MILLISECONDS);
+				}, delay, TimeUnit.MILLISECONDS);
 			}
 
 		}