diff --git a/ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/helper/DataBaseHelper.java b/ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/helper/DataBaseHelper.java
index 3f141f25e..976f2be60 100644
--- a/ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/helper/DataBaseHelper.java
+++ b/ruoyi-common/ruoyi-common-mybatis/src/main/java/org/dromara/common/mybatis/helper/DataBaseHelper.java
@@ -2,6 +2,7 @@ package org.dromara.common.mybatis.helper;
 
 import cn.hutool.core.convert.Convert;
 import com.baomidou.dynamic.datasource.DynamicRoutingDataSource;
+import com.baomidou.dynamic.datasource.toolkit.DynamicDataSourceContextHolder;
 import lombok.AccessLevel;
 import lombok.NoArgsConstructor;
 import org.dromara.common.core.exception.ServiceException;
@@ -15,6 +16,8 @@ import java.sql.DatabaseMetaData;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 
 /**
  * 数据库助手
@@ -25,6 +28,7 @@ import java.util.List;
 public class DataBaseHelper {
 
     private static final DynamicRoutingDataSource DS = SpringUtils.getBean(DynamicRoutingDataSource.class);
+    private static final Map<String, DataBaseType> DB_TYPE_CACHE = new ConcurrentHashMap<>();
 
     /**
      * 获取当前数据源对应的数据库类型
@@ -38,13 +42,17 @@ public class DataBaseHelper {
      */
     public static DataBaseType getDataBaseType() {
         DataSource dataSource = DS.determineDataSource();
-        try (Connection conn = dataSource.getConnection()) {
-            DatabaseMetaData metaData = conn.getMetaData();
-            String databaseProductName = metaData.getDatabaseProductName();
-            return DataBaseType.find(databaseProductName);
-        } catch (SQLException e) {
-            throw new RuntimeException("获取数据库类型失败", e);
-        }
+        String dsKey = DynamicDataSourceContextHolder.peek();
+        final String key = dsKey != null ? dsKey : "primary";
+        return DB_TYPE_CACHE.computeIfAbsent(key, k -> {
+            try (Connection conn = dataSource.getConnection()) {
+                DatabaseMetaData metaData = conn.getMetaData();
+                String databaseProductName = metaData.getDatabaseProductName();
+                return DataBaseType.find(databaseProductName);
+            } catch (SQLException e) {
+                throw new RuntimeException("获取数据库类型失败", e);
+            }
+        });
     }
 
     /**
@@ -56,13 +64,15 @@ public class DataBaseHelper {
      */
     public static DataBaseType getDataBaseType(String dsName) {
         DataSource dataSource = DS.getDataSource(dsName);
-        try (Connection conn = dataSource.getConnection()) {
-            DatabaseMetaData metaData = conn.getMetaData();
-            String databaseProductName = metaData.getDatabaseProductName();
-            return DataBaseType.find(databaseProductName);
-        } catch (SQLException e) {
-            throw new RuntimeException("获取数据库类型失败", e);
-        }
+        return DB_TYPE_CACHE.computeIfAbsent(dsName, k -> {
+            try (Connection conn = dataSource.getConnection()) {
+                DatabaseMetaData metaData = conn.getMetaData();
+                String databaseProductName = metaData.getDatabaseProductName();
+                return DataBaseType.find(databaseProductName);
+            } catch (SQLException e) {
+                throw new RuntimeException("获取数据库类型失败", e);
+            }
+        });
     }
 
     /**
@@ -95,7 +105,9 @@ public class DataBaseHelper {
     }
 
     /**
-     * 获取当前加载的数据库名
+     * 获取当前注册的数据源名称列表。
+     *
+     * @return 数据源名称列表
      */
     public static List<String> getDataSourceNameList() {
         return new ArrayList<>(DS.getDataSources().keySet());
diff --git a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/listener/WorkflowGlobalListener.java b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/listener/WorkflowGlobalListener.java
index d8ba911f2..f3e9aa22c 100644
--- a/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/listener/WorkflowGlobalListener.java
+++ b/ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/listener/WorkflowGlobalListener.java
@@ -159,9 +159,11 @@ public class WorkflowGlobalListener implements GlobalListener {
         String[] userIdArray = userIds.split(StringUtils.SEPARATOR);
         if (userIdArray.length > 0) {
             flowTask.setPermissionList(List.of(userIdArray));
-            // 移除已处理的状态变量
-            variable.remove(nodeKey);
-            FlowEngine.insService().removeVariables(flowTask.getInstanceId(), nodeKey);
+            if (TaskStatusEnum.PASS.getStatus().equals(taskStatus)) {
+                // 办理指定人变量只消费一次；驳回指定人变量需要保留给后续重复驳回。
+                variable.remove(nodeKey);
+                FlowEngine.insService().removeVariables(flowTask.getInstanceId(), nodeKey);
+            }
         }
     }