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 b74194c..e23823f 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
@@ -3,6 +3,7 @@ package org.dromara.system.controller.portal;
 import cn.dev33.satoken.annotation.SaCheckPermission;
 import cn.dev33.satoken.annotation.SaIgnore;
 import cn.hutool.core.lang.tree.Tree;
+import jakarta.servlet.http.HttpServletResponse;
 import jakarta.validation.constraints.NotNull;
 import lombok.RequiredArgsConstructor;
 import org.dromara.common.core.domain.R;
@@ -12,10 +13,7 @@ import org.dromara.common.web.core.BaseController;
 import org.dromara.system.domain.bo.*;
 import org.dromara.system.domain.vo.*;
 import org.dromara.system.service.*;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.bind.annotation.*;
 
 import java.util.List;
 
@@ -31,17 +29,17 @@ import java.util.List;
 @RequestMapping("/portal")
 public class PortalController extends BaseController {
 
-    private final ISysHomeBannerService sysHomeBannerService;
+    private final ISysHomeBannerService bannerService;
 
-    private final ISysHomeShowService sysHomeShowService;
+    private final ISysHomeShowService showService;
 
-    private final ISysHomeTrendService sysHomeTrendService;
+    private final ISysHomeTrendService trendService;
 
     private final ISysCatalogResourceService resourceService;
-    private final ISysOssResourceService sysOssResourceService;
+    private final ISysOssResourceService ossResourceService;
 
     private final ISysCatalogTextbookService textbookService;
-    private final ISysOssTextbookService sysOssTextbookService;
+    private final ISysOssTextbookService ossTextbookService;
 
 
     /**
@@ -50,7 +48,7 @@ public class PortalController extends BaseController {
     @SaIgnore
     @GetMapping("/banner/list")
     public TableDataInfo<SysHomeBannerVo> bannerList(SysHomeBannerBo bo, PageQuery pageQuery) {
-        return sysHomeBannerService.queryPageList(bo, pageQuery);
+        return bannerService.queryPageList(bo, pageQuery);
     }
 
     /**
@@ -59,7 +57,7 @@ public class PortalController extends BaseController {
     @SaIgnore
     @GetMapping("/show/list")
     public TableDataInfo<SysHomeShowVo> showList(SysHomeShowBo bo, PageQuery pageQuery) {
-        return sysHomeShowService.queryPageList(bo, pageQuery);
+        return showService.queryPageList(bo, pageQuery);
     }
 
     /**
@@ -71,7 +69,7 @@ public class PortalController extends BaseController {
     @GetMapping("/show/{showId}")
     public R<SysHomeShowVo> getShowInfo(@NotNull(message = "主键不能为空")
                                         @PathVariable Long showId) {
-        return R.ok(sysHomeShowService.queryById(showId));
+        return R.ok(showService.queryById(showId));
     }
 
     /**
@@ -80,7 +78,7 @@ public class PortalController extends BaseController {
     @SaIgnore
     @GetMapping("/trend/list")
     public TableDataInfo<SysHomeTrendVo> trendList(SysHomeTrendBo bo, PageQuery pageQuery) {
-        return sysHomeTrendService.queryPageList(bo, pageQuery);
+        return trendService.queryPageList(bo, pageQuery);
     }
 
     /**
@@ -92,7 +90,7 @@ public class PortalController extends BaseController {
     @GetMapping("/trend/{trendId}")
     public R<SysHomeTrendVo> getTrendInfo(@NotNull(message = "主键不能为空")
                                           @PathVariable Long trendId) {
-        return R.ok(sysHomeTrendService.queryById(trendId));
+        return R.ok(trendService.queryById(trendId));
     }
 
     /**
@@ -131,7 +129,12 @@ public class PortalController extends BaseController {
     @SaIgnore
     @GetMapping("/resource/list")
     public TableDataInfo<SysOssResourceVo> resourceList(SysOssResourceBo bo, PageQuery pageQuery) {
-        return sysOssResourceService.queryPageList(bo, pageQuery);
+        return ossResourceService.queryPageList(bo, pageQuery);
+    }
+    @SaIgnore
+    @PostMapping("/resource/preview/{id}")
+    public void resourcePreview(@PathVariable Long id, HttpServletResponse response) throws Exception {
+        ossResourceService.preview(id, response);
     }
 
     /**
@@ -160,6 +163,12 @@ public class PortalController extends BaseController {
     @SaIgnore
     @GetMapping("/textbook/list")
     public TableDataInfo<SysOssTextbookVo> textbookList(SysOssTextbookBo bo, PageQuery pageQuery) {
-        return sysOssTextbookService.queryPageList(bo, pageQuery);
+        return ossTextbookService.queryPageList(bo, pageQuery);
+    }
+
+    @SaIgnore
+    @PostMapping("/textbook/preview/{id}")
+    public void textbookPreview(@PathVariable Long id, HttpServletResponse response) throws Exception {
+        ossTextbookService.preview(id, response);
     }
 }