diff --git a/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/entity/BgXiSpeak.java b/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/entity/BgXiSpeak.java
index e8a4b0a..25bfaf4 100644
--- a/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/entity/BgXiSpeak.java
+++ b/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/entity/BgXiSpeak.java
@@ -176,6 +176,8 @@ public class BgXiSpeak implements Serializable {
     /**dw领导userId字段*/
     @Excel(name = "截止日期", width = 15)
     @Schema(description = "截止日期")
+    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd") // 核心：告诉Jackson怎么把String转成Date
+    @DateTimeFormat(pattern="yyyy-MM-dd")
     private java.util.Date deadline;
 
     @TableField(typeHandler = JacksonTypeHandler.class)
diff --git a/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/service/impl/BgXiSpeakServiceImpl.java b/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/service/impl/BgXiSpeakServiceImpl.java
index 6c87ef0..482686a 100644
--- a/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/service/impl/BgXiSpeakServiceImpl.java
+++ b/jeecg-module-supervision/src/main/java/org/jeecg/modules/bg/xispeak/service/impl/BgXiSpeakServiceImpl.java
@@ -10,6 +10,8 @@ import org.jeecg.common.system.vo.SelectTreeModel;
 import org.jeecg.modules.bg.xispeak.entity.BgXiSpeak;
 import org.jeecg.modules.bg.xispeak.mapper.BgXiSpeakMapper;
 import org.jeecg.modules.bg.xispeak.service.IBgXiSpeakService;
+import org.jeecg.modules.taskapprovalopinion.entity.TaskApprovalOpinion;
+import org.jeecg.modules.taskapprovalopinion.service.ITaskApprovalOpinionService;
 import org.jeecg.modules.tasktask.entity.TaskTask;
 import org.jeecg.modules.tasktask.service.impl.TaskTaskServiceImpl;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -36,6 +38,7 @@ public class BgXiSpeakServiceImpl extends ServiceImpl<BgXiSpeakMapper, BgXiSpeak
 
     private final TaskTaskServiceImpl taskTaskServiceImpl;
     private final RuntimeService runtimeService;
+    private final ITaskApprovalOpinionService taskApprovalOpinionService;
 
 	@Override
 	public void addBgXiSpeak(BgXiSpeak bgXiSpeak) {
@@ -268,13 +271,16 @@ public class BgXiSpeakServiceImpl extends ServiceImpl<BgXiSpeakMapper, BgXiSpeak
                 runtimeService.deleteProcessInstance(procId, delReason);
                 log.info("成功中止运行中的流程实例: {}", procId);
             }
+            taskApprovalOpinionService.remove(
+                    new LambdaQueryWrapper<TaskApprovalOpinion>()
+                            .eq(TaskApprovalOpinion::getProcessInstId, procId));
         }
 
-        // 4. 【核心修改：删除用】重新创建一个干净的 Wrapper，绝不能带 for update！
+        // 4. 重新创建一个干净的 Wrapper，绝不能带 for update！
         LambdaQueryWrapper<TaskTask> deleteWrapper = new LambdaQueryWrapper<TaskTask>()
-                .eq(TaskTask::getBusinessId, id); // 不要加 .last("for update")
+                .eq(TaskTask::getBusinessId, id);
 
-        taskTaskServiceImpl.remove(deleteWrapper); // 使用干净的 Wrapper 执行删除
+        taskTaskServiceImpl.remove(deleteWrapper);
 
         return true;
     }
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/controller/TaskTaskController.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/controller/TaskTaskController.java
index ed9fb8b..82a2f6e 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/controller/TaskTaskController.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/controller/TaskTaskController.java
@@ -222,6 +222,25 @@ public class TaskTaskController extends JeecgController<TaskTask, ITaskTaskServi
         return success ? Result.OK("更新成功") : Result.error("更新失败，未找到对应任务记录");
     }
 
+    /**
+     * 删除单个流程实例
+     *
+     * @param processInstId 流程实例ID
+     * @return
+     */
+    @AutoLog(value = "删除单个流程实例")
+    @Operation(summary = "删除单个流程实例")
+    @PostMapping(value = "/deleteSingleProcess")
+    public Result<String> deleteSingleProcess(@RequestParam("processInstId") String processInstId) {
+        if (oConvertUtils.isEmpty(processInstId)) {
+            return Result.error("流程实例ID不能为空");
+        }
+        if (taskTaskService.deleteSingleProcess(processInstId)) {
+            return Result.OK("删除流程成功");
+        }
+        return Result.error("删除流程失败");
+    }
+
     /**
      * 导出excel
      *
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/entity/TaskTask.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/entity/TaskTask.java
index 1a6f992..85cdb1f 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/entity/TaskTask.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/entity/TaskTask.java
@@ -179,9 +179,9 @@ public class TaskTask implements Serializable {
     @Schema(description = "督办开始时间")
     private java.util.Date startTime;
 	/**截止时间（精确到时分，与 require_finish_date 互补）*/
-	@Excel(name = "截止时间（精确到时分，与 require_finish_date 互补）", width = 20, format = "yyyy-MM-dd HH:mm:ss")
-	@JsonFormat(timezone = "GMT+8",pattern = "yyyy-MM-dd HH:mm:ss")
-    @DateTimeFormat(pattern="yyyy-MM-dd HH:mm:ss")
+	@Excel(name = "截止时间（精确到时分，与 require_finish_date 互补）", width = 20, format = "yyyy-MM-dd")
+    @JsonFormat(timezone = "GMT+8", pattern = "yyyy-MM-dd") // 如果只想要年月日，把这里的格式改掉
+    @DateTimeFormat(pattern="yyyy-MM-dd")
     @Schema(description = "截止时间（精确到时分，与 require_finish_date 互补）")
     private java.util.Date deadline;
 	/**实际完成时间*/
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/ITaskTaskService.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/ITaskTaskService.java
index 69be42c..29ee58d 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/ITaskTaskService.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/ITaskTaskService.java
@@ -18,4 +18,5 @@ public interface ITaskTaskService extends IService<TaskTask> {
     Result<?> handleFlowStart(TaskTask taskTask, String username, Integer intervalType, Integer startCount)throws Exception;
     List<TaskTask> getTaskTaskListByBusinessId(String businessId) throws Exception;
     boolean updateDeptHandlerName(String processInstanceId, String deptHandlerName);
+    boolean deleteSingleProcess(String processInstId);
 }
diff --git a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/impl/TaskTaskServiceImpl.java b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/impl/TaskTaskServiceImpl.java
index 419f1d0..1178c96 100644
--- a/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/impl/TaskTaskServiceImpl.java
+++ b/jeecg-module-system/jeecg-system-biz/src/main/java/org/jeecg/modules/tasktask/service/impl/TaskTaskServiceImpl.java
@@ -9,6 +9,8 @@ import org.flowable.engine.RuntimeService;
 import org.flowable.engine.runtime.ProcessInstance;
 import org.jeecg.common.api.vo.Result;
 import org.jeecg.modules.extbpm.process.exception.BpmException;
+import org.jeecg.modules.taskapprovalopinion.entity.TaskApprovalOpinion;
+import org.jeecg.modules.taskapprovalopinion.service.ITaskApprovalOpinionService;
 import org.jeecg.modules.extbpm.process.service.impl.BpmBaseExtApiImpl;
 import org.jeecg.modules.tasktask.constant.FlowConstants;
 import org.jeecg.modules.tasktask.entity.TaskTask;
@@ -38,6 +40,8 @@ public class TaskTaskServiceImpl extends ServiceImpl<TaskTaskMapper, TaskTask> i
     private BpmBaseExtApiImpl bpmBaseExtApiImpl;
     @Autowired
     private RuntimeService runtimeService;
+    @Autowired
+    private ITaskApprovalOpinionService taskApprovalOpinionService;
     @Transactional(rollbackFor = Exception.class)
     public boolean singleFlowStart(TaskTask taskTask, String userName) throws Exception {
         String jsonString = Optional.ofNullable(taskTask.getJsonData())
@@ -174,4 +178,30 @@ public class TaskTaskServiceImpl extends ServiceImpl<TaskTaskMapper, TaskTask> i
         taskTask.setDeptHandlerName(deptHandlerName);
         return this.updateById(taskTask);
     }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public boolean deleteSingleProcess(String processInstId) {
+        LambdaQueryWrapper<TaskTask> queryWrapper = new LambdaQueryWrapper<TaskTask>()
+                .eq(TaskTask::getProcessInstId, processInstId)
+                .last("for update");
+        TaskTask taskTask = this.getOne(queryWrapper, false);
+        if (taskTask == null) {
+            log.warn("删除单个流程时未找到关联的tasktask记录, processInstId: {}", processInstId);
+            return false;
+        }
+        long count = runtimeService.createProcessInstanceQuery()
+                .processInstanceId(processInstId)
+                .count();
+        if (count > 0) {
+            runtimeService.deleteProcessInstance(processInstId, "删除单个流程");
+            log.info("成功中止运行中的流程实例: {}", processInstId);
+        }
+        taskApprovalOpinionService.remove(
+                new LambdaQueryWrapper<TaskApprovalOpinion>()
+                        .eq(TaskApprovalOpinion::getProcessInstId, processInstId));
+        LambdaQueryWrapper<TaskTask> deleteWrapper = new LambdaQueryWrapper<TaskTask>()
+                .eq(TaskTask::getProcessInstId, processInstId);
+        return this.remove(deleteWrapper);
+    }
 }