diff --git a/src/main/java/mjkf/xinke/main/service/data/DataNetworkService.java b/src/main/java/mjkf/xinke/main/service/data/DataNetworkService.java
index ac61f1e..00ba03f 100644
--- a/src/main/java/mjkf/xinke/main/service/data/DataNetworkService.java
+++ b/src/main/java/mjkf/xinke/main/service/data/DataNetworkService.java
@@ -49,7 +49,7 @@ public class DataNetworkService extends DataService<BaseMapper<DataNetwork>, Dat
 
     public DataNetwork getMapGroupingBy(Map item) {
         var o = new DataNetwork();
-        o.setMaterialId(item.get("Material_id").toString());
+        o.setMaterialId(item.get("material_id").toString());
         return o;
     }