diff --git a/src/main/java/xyz/playedu/api/controller/backend/ResourceController.java b/src/main/java/xyz/playedu/api/controller/backend/ResourceController.java
index 274809b..1901edf 100644
--- a/src/main/java/xyz/playedu/api/controller/backend/ResourceController.java
+++ b/src/main/java/xyz/playedu/api/controller/backend/ResourceController.java
@@ -43,7 +43,7 @@ public class ResourceController {
         String sortAlgo = MapUtils.getString(params, "sort_algo");
         String name = MapUtils.getString(params, "name");
         String type = MapUtils.getString(params, "type");
-        String categoryIdsStr = MapUtils.getString(params, "category_ids");
+        String categoryIds = MapUtils.getString(params, "category_ids");
 
         if (type == null || type.trim().length() == 0) {
             return JsonResponse.error("请选择资源类型");
@@ -53,13 +53,10 @@ public class ResourceController {
         filter.setSortAlgo(sortAlgo);
         filter.setSortField(sortField);
         filter.setType(type);
+        filter.setCategoryIds(categoryIds);
         if (name != null && name.length() > 0) {
             filter.setName(name);
         }
-        if (categoryIdsStr != null && categoryIdsStr.length() != 0) {
-            Integer[] categoryIds = Arrays.stream(categoryIdsStr.split(",")).map(Integer::valueOf).toArray(Integer[]::new);
-            filter.setCategoryIds(categoryIds);
-        }
 
         PaginationResult<Resource> result = resourceService.paginate(page, size, filter);
 
diff --git a/src/main/java/xyz/playedu/api/service/impl/ResourceServiceImpl.java b/src/main/java/xyz/playedu/api/service/impl/ResourceServiceImpl.java
index 7d51687..8005575 100644
--- a/src/main/java/xyz/playedu/api/service/impl/ResourceServiceImpl.java
+++ b/src/main/java/xyz/playedu/api/service/impl/ResourceServiceImpl.java
@@ -54,12 +54,13 @@ public class ResourceServiceImpl extends ServiceImpl<ResourceMapper, Resource> i
         if (filter.getType() != null) {
             wrapper.eq("type", filter.getType());
         }
-        if (filter.getCategoryIds() != null && filter.getCategoryIds().length > 0) {
-            List<Integer> ridArray = relationService.getRidsByCids(Arrays.asList(filter.getCategoryIds()));
-            if (ridArray == null || ridArray.size() == 0) {
-                ridArray = HelperUtil.zeroIntegerList();
+        if (filter.getCategoryIds() != null && filter.getCategoryIds().trim().length() > 0) {
+            List<Integer> categoryIds = Arrays.stream(filter.getCategoryIds().split(",")).map(Integer::valueOf).toList();
+            List<Integer> ids = relationService.getRidsByCids(categoryIds);
+            if (ids == null || ids.size() == 0) {
+                ids = HelperUtil.zeroIntegerList();
             }
-            wrapper.in("id", ridArray);
+            wrapper.in("id", ids);
         }
 
         String sortFiled = filter.getSortField();
diff --git a/src/main/java/xyz/playedu/api/service/impl/ResourceVideoServiceImpl.java b/src/main/java/xyz/playedu/api/service/impl/ResourceVideoServiceImpl.java
index 54aecd6..4ee6753 100644
--- a/src/main/java/xyz/playedu/api/service/impl/ResourceVideoServiceImpl.java
+++ b/src/main/java/xyz/playedu/api/service/impl/ResourceVideoServiceImpl.java
@@ -6,6 +6,7 @@ import xyz.playedu.api.service.ResourceVideoService;
 import xyz.playedu.api.mapper.ResourceVideoMapper;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 import java.util.Map;
@@ -34,6 +35,9 @@ public class ResourceVideoServiceImpl extends ServiceImpl<ResourceVideoMapper, R
 
     @Override
     public List<ResourceVideo> chunksByRids(List<Integer> resourceIds) {
+        if (resourceIds == null || resourceIds.size() == 0) {
+            return new ArrayList<>();
+        }
         return list(query().getWrapper().in("rid", resourceIds));
     }
 }
diff --git a/src/main/java/xyz/playedu/api/types/paginate/ResourcePaginateFilter.java b/src/main/java/xyz/playedu/api/types/paginate/ResourcePaginateFilter.java
index eb273a9..9be5c70 100644
--- a/src/main/java/xyz/playedu/api/types/paginate/ResourcePaginateFilter.java
+++ b/src/main/java/xyz/playedu/api/types/paginate/ResourcePaginateFilter.java
@@ -19,7 +19,7 @@ public class ResourcePaginateFilter {
 
     private String sortAlgo;
 
-    private Integer[] categoryIds;
+    private String categoryIds;
 
     private String type;
 
diff --git a/src/main/java/xyz/playedu/api/util/HelperUtil.java b/src/main/java/xyz/playedu/api/util/HelperUtil.java
index 32340d5..0969c66 100644
--- a/src/main/java/xyz/playedu/api/util/HelperUtil.java
+++ b/src/main/java/xyz/playedu/api/util/HelperUtil.java
@@ -15,9 +15,9 @@ public class HelperUtil {
 
 
     public static List<Integer> zeroIntegerList() {
-        List<Integer> list = new ArrayList<>(1);
-        list.add(0);
-        return list;
+        return new ArrayList<>() {{
+            add(0);
+        }};
     }
 
     public static String MD5(String text) {