diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/portal/PortalController.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/portal/PortalController.java
index b6526fb..b74194c 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/portal/PortalController.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/portal/PortalController.java
@@ -104,6 +104,16 @@ public class PortalController extends BaseController {
         return resourceService.queryProtalPageList(bo, pageQuery);
     }
 
+    /**
+     * 查询目录-专题资源
+     */
+    @SaIgnore
+    @GetMapping("/resource/catalog/tree")
+    public R<List<Tree<Long>>> treeList(SysCatalogResourceBo bo) {
+        List<Tree<Long>> trees = resourceService.buildTreeSelect(bo);
+        return R.ok(trees);
+    }
+
 
     /**
      * 查询目录-专题资源
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssResourceMapper.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssResourceMapper.java
index 759b49a..5e96a0d 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssResourceMapper.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssResourceMapper.java
@@ -31,4 +31,5 @@ public interface SysOssResourceMapper extends BaseMapperPlus<SysOssResource, Sys
                                                @Param(Constants.WRAPPER) Wrapper<SysOssTextbook> queryWrapper);
 
     int addDownloadNum(Long id);
+    int addPreviewNum(Long id);
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssTextbookMapper.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssTextbookMapper.java
index f21fbee..3b68f0e 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssTextbookMapper.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/mapper/SysOssTextbookMapper.java
@@ -29,4 +29,5 @@ public interface SysOssTextbookMapper extends BaseMapperPlus<SysOssTextbook, Sys
                                               @Param(Constants.WRAPPER) Wrapper<SysOssTextbook> queryWrapper);
 
     int addDownloadNum(Long id);
+    int addPreviewNum(Long id);
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogResourceService.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogResourceService.java
index 144c519..97f1382 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogResourceService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogResourceService.java
@@ -1,6 +1,7 @@
 package org.dromara.system.service;
 
 
+import cn.hutool.core.lang.tree.Tree;
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
@@ -118,4 +119,12 @@ public interface ISysCatalogResourceService {
     String selectCatalogNameById(Long catalogId);
 
     List<SysCatalogResource> selectList(Wrapper<SysCatalogResource> queryWrapper);
+
+    /**
+     * 构建前端所需要下拉树结构
+     *
+     * @param bo 目录列表
+     * @return 下拉树结构列表
+     */
+    List<Tree<Long>> buildTreeSelect(SysCatalogResourceBo bo);
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogTextbookService.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogTextbookService.java
index 6b0ad98..b9ae6fe 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogTextbookService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysCatalogTextbookService.java
@@ -114,10 +114,8 @@ public interface ISysCatalogTextbookService {
     /**
      * 构建前端所需要下拉树结构
      *
-     * @param catalogs 目录列表
+     * @param bo 目录列表
      * @return 下拉树结构列表
      */
-    //List<Tree<Long>> buildCatalogTreeSelect(List<SysCatalogTextbookVo> catalogs);
-
     List<Tree<Long>> buildTreeSelect(SysCatalogTextbookBo bo);
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssResourceService.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssResourceService.java
index d8c833e..d31df04 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssResourceService.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssResourceService.java
@@ -1,6 +1,7 @@
 package org.dromara.system.service;
 
 
+import cn.hutool.core.lang.tree.Tree;
 import jakarta.servlet.http.HttpServletResponse;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysCatalogResourceServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysCatalogResourceServiceImpl.java
index e6dafb8..6776f58 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysCatalogResourceServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysCatalogResourceServiceImpl.java
@@ -2,6 +2,7 @@ package org.dromara.system.service.impl;
 
 import cn.hutool.core.collection.CollUtil;
 import cn.hutool.core.convert.Convert;
+import cn.hutool.core.lang.tree.Tree;
 import cn.hutool.core.util.ObjectUtil;
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
@@ -13,6 +14,7 @@ import org.dromara.common.core.constant.CacheNames;
 import org.dromara.common.core.utils.MapstructUtils;
 import org.dromara.common.core.utils.SpringUtils;
 import org.dromara.common.core.utils.StringUtils;
+import org.dromara.common.core.utils.TreeBuildUtils;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
 import org.dromara.common.mybatis.helper.DataBaseHelper;
@@ -70,7 +72,7 @@ public class SysCatalogResourceServiceImpl implements ISysCatalogResourceService
     }
 
     /**
-     * 管理使用
+     * 管理使用,页面
      *
      * @param bo        查询条件
      * @param pageQuery 分页参数
@@ -210,6 +212,28 @@ public class SysCatalogResourceServiceImpl implements ISysCatalogResourceService
         return baseMapper.selectList(queryWrapper);
     }
 
+    @Override
+    public List<Tree<Long>> buildTreeSelect(SysCatalogResourceBo bo) {
+        LambdaQueryWrapper<SysCatalogResource> lqw = buildQueryWrapper(bo);
+        List<SysCatalogResourceVo> voList = baseMapper.selectVoList(lqw);
+        return buildCatalogTreeSelect(voList);
+    }
+
+    //@Override
+    private List<Tree<Long>> buildCatalogTreeSelect(List<SysCatalogResourceVo> catalogs) {
+        if (CollUtil.isEmpty(catalogs)) {
+            return CollUtil.newArrayList();
+        }
+        return TreeBuildUtils.build(catalogs, (catalog, tree) ->
+            tree.setId(catalog.getCatalogId())
+                .setParentId(catalog.getParentId())
+                .setName(catalog.getCatalogName())
+                .setWeight(catalog.getOrderNum())
+                .putExtra("type", catalog.getType())
+        );
+
+    }
+
     /**
      * 修改子元素关系
      *
diff --git a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssResourceServiceImpl.java b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssResourceServiceImpl.java
index f307df8..552f0bf 100644
--- a/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssResourceServiceImpl.java
+++ b/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssResourceServiceImpl.java
@@ -1,5 +1,7 @@
 package org.dromara.system.service.impl;
 
+import cn.hutool.core.collection.CollUtil;
+import cn.hutool.core.lang.tree.Tree;
 import cn.hutool.core.util.ObjectUtil;
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
@@ -12,14 +14,18 @@ import org.dromara.common.core.exception.ServiceException;
 import org.dromara.common.core.utils.MapstructUtils;
 import org.dromara.common.core.utils.StreamUtils;
 import org.dromara.common.core.utils.StringUtils;
+import org.dromara.common.core.utils.TreeBuildUtils;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
 import org.dromara.common.mybatis.helper.DataBaseHelper;
 import org.dromara.system.domain.SysCatalogResource;
+import org.dromara.system.domain.SysCatalogTextbook;
 import org.dromara.system.domain.SysOssResource;
 import org.dromara.system.domain.SysOssTextbook;
+import org.dromara.system.domain.bo.SysCatalogTextbookBo;
 import org.dromara.system.domain.bo.SysOssResourceBo;
 import org.dromara.system.domain.vo.SysCatalogResourceVo;
+import org.dromara.system.domain.vo.SysCatalogTextbookVo;
 import org.dromara.system.domain.vo.SysOssResourceVo;
 import org.dromara.system.domain.vo.SysOssVo;
 import org.dromara.system.mapper.SysOssResourceMapper;
@@ -223,4 +229,5 @@ public class SysOssResourceServiceImpl implements ISysOssResourceService {
         ossService.download(ossResource.getOssId(), fileName, response);
         baseMapper.addDownloadNum(id);
     }
+
 }
diff --git a/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssResourceMapper.xml b/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssResourceMapper.xml
index 6719189..05115db 100644
--- a/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssResourceMapper.xml
+++ b/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssResourceMapper.xml
@@ -22,4 +22,10 @@
         set download_num = download_num + 1
         where id = #{id}
     </update>
+
+    <update id="addPreviewNum">
+        update sys_oss_resource
+        set preview_num = preview_num + 1
+        where id = #{id}
+    </update>
 </mapper>
diff --git a/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssTextbookMapper.xml b/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssTextbookMapper.xml
index d8bc84a..556f107 100644
--- a/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssTextbookMapper.xml
+++ b/ruoyi-modules/ruoyi-system/src/main/resources/mapper/system/SysOssTextbookMapper.xml
@@ -1,9 +1,8 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <!DOCTYPE mapper
-PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
-"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+    PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="org.dromara.system.mapper.SysOssTextbookMapper">
-
     <select id="selectPageList" resultType="org.dromara.system.domain.vo.SysOssTextbookVo">
         select ot.*, o.volume
         from sys_oss_textbook ot
@@ -24,4 +23,10 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
         set download_num = download_num + 1
         where id = #{id}
     </update>
+
+    <update id="addPreviewNum">
+        update sys_oss_textbook
+        set preview_num = preview_num + 1
+        where id = #{id}
+    </update>
 </mapper>