diff --git a/src/main/java/com/huoran/iasf/controller/CategoryController.java b/src/main/java/com/huoran/iasf/controller/CategoryController.java
index c1af9db..989188a 100644
--- a/src/main/java/com/huoran/iasf/controller/CategoryController.java
+++ b/src/main/java/com/huoran/iasf/controller/CategoryController.java
@@ -19,7 +19,9 @@ import org.springframework.validation.annotation.Validated;
 import org.springframework.web.bind.annotation.*;
 
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 
 /**
  * 产品与课程分类表控制类
@@ -100,18 +102,20 @@ public class CategoryController {
     public R hasBeenCitedInTheArticle(@ApiParam(value = "类型标识") @RequestParam(required = false) Integer type,
                                       @ApiParam(value = "站点id") @RequestParam(required = false) Integer siteId) {
 
-        List<Category> categories = new ArrayList<>();
-        if (type == 0) {
-            //类型
+        Set<Category> categories = new HashSet<>();
 
-            categories = service.lookUpTheTypeOfReferenceBySite(siteId);
+        if (type == 0) {
+            // 类型
+            List<Category> categoriesList = service.lookUpTheTypeOfReferenceBySite(siteId);
 
+            // 将List转换为Set
+            categories.addAll(categoriesList);
 
         } else {
-            //分类、标签
+            // 分类、标签
             String tagIds = service.queryLabelsReferencedWithinSite(siteId);
             if (!StringUtils.isEmpty(tagIds)) {
-                //逗号循环分隔设置到集合中
+                // 逗号循环分隔设置到集合中
                 String[] tagArray = tagIds.split(",");
                 for (String tagId : tagArray) {
                     Category category = service.getById(tagId);
@@ -119,14 +123,13 @@ public class CategoryController {
                         categories.add(category);
                     }
                 }
-
             }
-
         }
 
         return R.success(categories);
     }
 
+
     /**
      * 查询分类详情
      *
diff --git a/src/main/java/com/huoran/iasf/entity/Logo.java b/src/main/java/com/huoran/iasf/entity/Logo.java
index b2497aa..25119e1 100644
--- a/src/main/java/com/huoran/iasf/entity/Logo.java
+++ b/src/main/java/com/huoran/iasf/entity/Logo.java
@@ -31,6 +31,9 @@ public class Logo implements Serializable {
     @ApiModelProperty(value = "图标")
     private String logoUrl;
 
+    @ApiModelProperty(value = "白底图标")
+    private String whiteUrl;
+
     @ApiModelProperty(value = "站点id")
     private Integer siteId;