diff --git a/pom.xml b/pom.xml
index f437b34..dd0565f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.zdjizhi</groupId>
     <artifactId>log-olap-analysis-schema</artifactId>
-    <version>210908-security</version>
+    <version>211105-flattenSpec</version>
 
     <name>log-olap-analysis-schema</name>
     <url>http://www.example.com</url>
diff --git a/src/main/java/com/zdjizhi/utils/functions/MapParseFunction.java b/src/main/java/com/zdjizhi/utils/functions/MapParseFunction.java
index 5a5741e..7244b1d 100644
--- a/src/main/java/com/zdjizhi/utils/functions/MapParseFunction.java
+++ b/src/main/java/com/zdjizhi/utils/functions/MapParseFunction.java
@@ -139,8 +139,10 @@ public class MapParseFunction implements MapFunction<String, Tuple3<String, Stri
             if (StringUtil.isNotBlank(expr)) {
                 String operateValue = JsonParseUtil.getString(message, fieldName);
                 ArrayList<String> read = JsonPath.parse(operateValue).read(expr);
-                String flattenResult = read.get(0);
-                dimensions.put(resultKeyName, flattenResult);
+                if (read.size() >= 1) {
+                    String flattenResult = read.get(0);
+                    dimensions.put(resultKeyName, flattenResult);
+                }
             }
         } catch (ClassCastException | InvalidPathException e) {
             logger.error("设备标签解析异常，[ " + expr + " ]解析表达式错误" + e);