diff --git a/common/common-online/src/main/java/apelet/common/online/rule/FormRuleEngine.java b/common/common-online/src/main/java/apelet/common/online/rule/FormRuleEngine.java
index 5fcaed2..fa2a07f 100644
--- a/common/common-online/src/main/java/apelet/common/online/rule/FormRuleEngine.java
+++ b/common/common-online/src/main/java/apelet/common/online/rule/FormRuleEngine.java
@@ -80,14 +80,20 @@ public class FormRuleEngine {
         if (rule == null) {
             return null;
         }
+        return executeAction(rule, null, values);
+    }
+
+    public List<Object> executeAction(FormRule rule, OnlineEventPluginExecuteDto dto, ObjectValue values) {
+        if (dto == null) {
+            dto = new OnlineEventPluginExecuteDto();
+        }
         List<Object> result = new ArrayList<>();
-        executeRule(rule, null, values, null, new OnlineEventPluginExecuteDto(), result);
+        executeRule(rule, null, values, null, dto, result);
         return result;
     }
 
 
-    private void executeRule(FormRule rule, OnlineForm form, ObjectValue ov, String eventCode,
-                             OnlineEventPluginExecuteDto dto, List<Object> result) {
+    public void executeRule(FormRule rule, OnlineForm form, ObjectValue ov, String eventCode, OnlineEventPluginExecuteDto dto, List<Object> result) {
         if (!rule.isEnable()) {
             return;
         }
diff --git a/common/common-online/src/main/java/apelet/common/online/service/impl/OnlineOperationServiceImpl.java b/common/common-online/src/main/java/apelet/common/online/service/impl/OnlineOperationServiceImpl.java
index e9ddef6..cba3e46 100644
--- a/common/common-online/src/main/java/apelet/common/online/service/impl/OnlineOperationServiceImpl.java
+++ b/common/common-online/src/main/java/apelet/common/online/service/impl/OnlineOperationServiceImpl.java
@@ -2595,6 +2595,8 @@ public class OnlineOperationServiceImpl implements OnlineOperationService {
 
     /**
      * 查询结果回填：将附件上传/图片上传字段对应的 zz_online_file 数据组装成文件JSON数组回填到字段上。
+     * <p>统一返回文件JSON数组的字符串形式：历史数据业务列直接存JSON字符串，新数据从 zz_online_file 组装后也转成字符串，
+     * 与保存侧 parseOnlineFileList 的字符串入参契约一致，前端无需区分新旧数据。</p>
      *
      * @param resultList 查询结果列表。
      * @param table      在线数据表对象。
@@ -2649,7 +2651,8 @@ public class OnlineOperationServiceImpl implements OnlineOperationService {
                     fileJson.put("uploadFailed", false);
                     fileArray.add(fileJson);
                 }
-                result.put(column.getColumnName(), fileArray);
+                // 统一返回文件JSON字符串，与历史数据(业务列直接存JSON字符串)及保存侧(parseOnlineFileList按字符串解析)契约一致。
+                result.put(column.getColumnName(), fileArray.toJSONString());
             }
         }
     }
diff --git a/common/common-online/src/main/java/apelet/common/online/util/Jexl3Util.java b/common/common-online/src/main/java/apelet/common/online/util/Jexl3Util.java
index a8306eb..3613ef6 100644
--- a/common/common-online/src/main/java/apelet/common/online/util/Jexl3Util.java
+++ b/common/common-online/src/main/java/apelet/common/online/util/Jexl3Util.java
@@ -12,6 +12,7 @@ import org.apache.commons.lang3.StringUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
+import java.math.BigDecimal;
 import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
@@ -46,8 +47,7 @@ public class Jexl3Util {
         // 创建Context对象，为表达式中的未知数赋值
         JexlContext context = new MapContext();
         if (paramMap != null) {
-            paramMap.forEach((key, value) ->
-                    context.set(key.toLowerCase(), value instanceof String ? ((String) value).toLowerCase() : value)
+            paramMap.forEach((key, value) -> context.set(key.toLowerCase(), normalize(value))
             );
         }
         // 使用表达式引擎创建表达式对象
@@ -59,6 +59,27 @@ public class Jexl3Util {
         return evaluate;
     }
 
+
+    /**
+     * 数值参数归一：整型转 Double 避免 JEXL 整数除法截断（如 21/2=10 应为 10.5）；
+     * BigDecimal 保留精度（避免大数转 Double 丢精度）；String 转小写与表达式归一一致；其余原样。
+     */
+    private Object normalize(Object value) {
+        if (value instanceof Integer) {
+            return ((Integer) value).doubleValue();
+        }
+        if (value instanceof Long) {
+            return ((Long) value).doubleValue();
+        }
+        if (value instanceof BigDecimal) {
+            return value;
+        }
+        if (value instanceof String) {
+            return ((String) value).toLowerCase();
+        }
+        return value;
+    }
+
     public Map<String, Object> getMapValue(JSONObject obj, ObjectValue objectValue) {
         HashMap<String, Object> map = new HashMap<>();
         for (String tab : obj.keySet()) {