diff --git a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
index 6ee31b710..1adc12ed4 100644
--- a/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
+++ b/jero-boot/jero-boot-modules/src/main/java/com/jero/modules/document/service/impl/BussDocumentLibraryEOServiceImpl.java
@@ -1177,10 +1177,10 @@ public class BussDocumentLibraryEOServiceImpl extends ServiceImpl<BussDocumentLi
                                             if (ObjectUtils.isNotEmpty(entry.getValue())) {
                                                 for (String s : entry.getValue().toString().split(",")) {
                                                     Map<String, Object> mapTemp1 = new HashMap<>();
-                                                    if (s.equals((String) map1.get("serial_number"))) {
-                                                        standardNameList.add((String) map1.get("serial_number"));
-                                                        mapTemp1.put("title", (String) map1.get("serial_number"));
-                                                        mapTemp1.put("id", (String) map1.get("id"));
+                                                    if (s.equals(StringUtils.valueOf(map1.get("serial_number")))) {
+                                                        standardNameList.add(StringUtils.valueOf(map1.get("serial_number")));
+                                                        mapTemp1.put("title", StringUtils.valueOf(map1.get("serial_number")));
+                                                        mapTemp1.put("id", StringUtils.valueOf(map1.get("id")));
                                                         if (ObjectUtils.isNotEmpty(mapTemp1)) {
                                                             listStandard.add(mapTemp1);
                                                         }