fix(修改一个bug，查询转map出现字段null)

src/main/java/com/mokamrp/privates/service/impl/WorkContactEmployeeServiceImpl.java

@@ -431,8 +431,13 @@ public class WorkContactEmployeeServiceImpl extends ServiceImpl<WorkContactEmplo
                 for (Map<String, Object> tag : tagMapData) {
                     if (tag.get("employee_id").toString().equals(list.get(i).getEmployeeId().toString())
                             && tag.get("contact_id").toString().equals(list.get(i).getContactId().toString()) ) {
-                        list.get(i).setTagNames(tag.get("tag_names").toString());
-                        list.get(i).setTagIds(tag.get("tag_ids").toString());
+                        if(tag.get("tag_names") != null){
+                            list.get(i).setTagNames(tag.get("tag_names").toString());
+                        }
+
+                        if(tag.get("tag_ids") != null){
+                            list.get(i).setTagIds(tag.get("tag_ids").toString());
+                        }
                     }
                 }
             }