优化流程实例编号生成

flow-workflow/flow-workflow-biz/src/main/java/com/flow/service/impl/FlowDefineServiceImpl.java

@@ -96,23 +96,14 @@ public class FlowDefineServiceImpl extends BaseServiceImpl<FlowDefineDao, FlowDe
             }
         }
         // 生成流程实例ID
-        String serialKey = "flow:serial";
+        String currentDate = DateTimeFormatter.ISO_DATE.format(LocalDate.now());
+        String serialKey = String.format("flow:serial:%s", currentDate);
         Long increment = redisService.incr(serialKey, 1L);
         if (increment == 1L) {
-            // 设置缓存过期时间
-            Calendar tomorrowMidnight = Calendar.getInstance();
-            tomorrowMidnight.add(Calendar.DAY_OF_YEAR, 1);
-            tomorrowMidnight.set(Calendar.HOUR_OF_DAY, 0);
-            tomorrowMidnight.set(Calendar.MINUTE, 0);
-            tomorrowMidnight.set(Calendar.SECOND, 0);
-            tomorrowMidnight.set(Calendar.MILLISECOND, 0);
-            long midnightTimestamp = (tomorrowMidnight.getTimeInMillis() - System.currentTimeMillis()) / 1000;
-            redisService.expire(serialKey, midnightTimestamp);
+            redisService.expire(serialKey, 60 * 60 * 24L);
         }
         String serial = String.format("%3s", increment).replace(" ", "0");
-        String currentDate = DateTimeFormatter.ofPattern("yyyyMMdd").format(LocalDate.now());
-        String instanceId = String.format("fw%s%s", currentDate, serial);
-
+        String instanceId = String.format("LF%s%s", currentDate, serial);
         String instanceName = startProcess.getInstanceName();
         Settings settings = flowDefine.getSettings();
         TitleConfig titleConfig = settings.getTitle();