diff --git a/ruoyi-common/ruoyi-common-web/src/main/java/org/dromara/common/web/handler/GlobalExceptionHandler.java b/ruoyi-common/ruoyi-common-web/src/main/java/org/dromara/common/web/handler/GlobalExceptionHandler.java
index 7e615b404..d519b9d55 100644
--- a/ruoyi-common/ruoyi-common-web/src/main/java/org/dromara/common/web/handler/GlobalExceptionHandler.java
+++ b/ruoyi-common/ruoyi-common-web/src/main/java/org/dromara/common/web/handler/GlobalExceptionHandler.java
@@ -16,7 +16,6 @@ import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.json.utils.JsonUtils;
 import org.springframework.context.support.DefaultMessageSourceResolvable;
 import org.springframework.expression.ExpressionException;
-import org.springframework.expression.spel.SpelEvaluationException;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.validation.BindException;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/BackProcessBo.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/BackProcessBo.java
index 654bf0800..a67a1f78e 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/BackProcessBo.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/domain/bo/BackProcessBo.java
@@ -1,6 +1,5 @@
 package org.dromara.workflow.domain.bo;
 
-import jakarta.validation.constraints.NotBlank;
 import jakarta.validation.constraints.NotNull;
 import lombok.Data;
 import org.dromara.common.core.validate.AddGroup;
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
index 2607dfd21..55d84dfee 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/FlwTaskServiceImpl.java
@@ -6,6 +6,7 @@ import cn.hutool.core.convert.Convert;
 import cn.hutool.core.lang.Dict;
 import cn.hutool.core.util.ObjectUtil;
 import cn.hutool.core.util.StrUtil;
+import com.baomidou.lock.annotation.Lock4j;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.incrementer.IdentifierGenerator;
@@ -102,6 +103,7 @@ public class FlwTaskServiceImpl implements IFlwTaskService {
      */
     @Override
     @Transactional(rollbackFor = Exception.class)
+    @Lock4j(keys = {"#startProcessBo.flowCode + #startProcessBo.businessId"})
     public StartProcessReturnDTO startWorkFlow(StartProcessBo startProcessBo) {
         String businessId = startProcessBo.getBusinessId();
         if (StringUtils.isBlank(businessId)) {
@@ -196,6 +198,7 @@ public class FlwTaskServiceImpl implements IFlwTaskService {
      */
     @Override
     @Transactional(rollbackFor = Exception.class)
+    @Lock4j(keys = {"#completeTaskBo.taskId"})
     public boolean completeTask(CompleteTaskBo completeTaskBo) {
         // 获取任务ID并查询对应的流程任务和实例信息
         Long taskId = completeTaskBo.getTaskId();