yxk-20260518-待办列表增加截至时间计算逻辑，逾期和即将到期的任务分别提醒

jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/bpm/dto/TaskDTO.java

@@ -57,6 +57,16 @@ public class TaskDTO implements java.io.Serializable {
 	private String bpmBizTitle;
 	/** 截止时间 */
 	private String deadline;
+	/** 截止时间是否逾期 */
+	private Boolean deadlineOverdue;
+	/** 截止时间逾期天数 */
+	private Long overdueDays;
+	/** 截止时间是否临近 */
+	private Boolean deadlineSoon;
+	/** 截止时间剩余天数 */
+	private Long remainingDays;
+	/** 截止时间提醒文案 */
+	private String deadlineWarnText;
 	/** 流程状态 未发起、处理中、处理完成*/
 	private String bpmStatus;
 	/** 超时提醒*/

jeecg-boot-platform/jeecg-boot-module-bpm-flowable/src/main/java/org/jeecg/modules/bpm/service/impl/ActivitiServiceImpl.java

@@ -310,7 +310,21 @@ public class ActivitiServiceImpl implements ActivitiService {
 			dto.setTaskId(t.getTaskDefinitionKey());
 			dto.setTaskEndTime(t.getDueDate());
 			dto.setProcessInstanceId(t.getProcessInstanceId());
-			dto.setDeadline(oConvertUtils.getString(processVariables.get("deadline")));
+			String deadline = oConvertUtils.getString(processVariables.get("deadline"));
+			dto.setDeadline(deadline);
+			Long deadlineGapDays = calcDeadlineGapDays(deadline);
+			dto.setDeadlineOverdue(false);
+			dto.setDeadlineSoon(false);
+			if (deadlineGapDays != null && deadlineGapDays < 0) {
+				Long overdueDays = Math.abs(deadlineGapDays);
+				dto.setDeadlineOverdue(true);
+				dto.setOverdueDays(overdueDays);
+				dto.setDeadlineWarnText("已逾期" + overdueDays + "天");
+			} else if (deadlineGapDays != null && deadlineGapDays <= 3) {
+				dto.setDeadlineSoon(true);
+				dto.setRemainingDays(deadlineGapDays);
+				dto.setDeadlineWarnText(deadlineGapDays == 0 ? "今天截止" : "剩余" + deadlineGapDays + "天");
+			}
 			dto.setProcessApplyUserId(applyUserId);
 //			dto.setProcessApplyUserName(ownerSysUser!=null?ownerSysUser.getRealname():"");
 			dto.setProcessDefinitionId(processInstance != null ? processInstance.getProcessDefinitionId() : null);
@@ -548,6 +562,29 @@ public class ActivitiServiceImpl implements ActivitiService {
 
 
 
+	/**
+	 * 计算截止日期与今天的天数差，负数表示已逾期
+	 * @param deadline
+	 * @return
+	 */
+	private Long calcDeadlineGapDays(String deadline) {
+		if (oConvertUtils.isEmpty(deadline)) {
+			return null;
+		}
+		try {
+			String deadlineText = deadline.trim();
+			if (deadlineText.length() < 10) {
+				return null;
+			}
+			String deadlineDateText = deadlineText.substring(0, 10).replace("/", "-").replace(".", "-");
+			java.time.LocalDate deadlineDate = java.time.LocalDate.parse(deadlineDateText);
+			return java.time.temporal.ChronoUnit.DAYS.between(java.time.LocalDate.now(), deadlineDate);
+		} catch (Exception e) {
+			log.warn("待办任务deadline解析失败：{}", deadline);
+			return null;
+		}
+	}
+
 	/**
 	 * 获取业务ID
 	 *