预览接口分开

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/file/SysOssPersonController.java

@@ -130,6 +130,7 @@ public class SysOssPersonController extends BaseController {
 
     /**
      * 下载
+     *
      * @param id 主键
      */
     @SaCheckPermission("file:person:download")
@@ -137,4 +138,10 @@ public class SysOssPersonController extends BaseController {
     public void download(@PathVariable Long id, HttpServletResponse response) throws Exception {
         sysOssPersonService.download(id, response);
     }
+
+    @SaCheckPermission("file:person:preview")
+    @PostMapping("/preview/{id}")
+    public void preview(@PathVariable Long id, HttpServletResponse response) throws Exception {
+        sysOssPersonService.preview(id, response);
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/file/SysOssResourceController.java

@@ -145,4 +145,9 @@ public class SysOssResourceController extends BaseController {
     public void download(@PathVariable Long id, HttpServletResponse response) throws Exception {
         sysOssResourceService.download(id, response);
     }
+    @SaCheckPermission("file:resource:preview")
+    @PostMapping("/preview/{id}")
+    public void preview(@PathVariable Long id, HttpServletResponse response) throws Exception {
+        sysOssResourceService.preview(id, response);
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/controller/file/SysOssTextbookController.java

@@ -140,6 +140,7 @@ public class SysOssTextbookController extends BaseController {
 
     /**
      * 下载
+     *
      * @param id 主键
      */
     @SaCheckPermission("file:textbook:download")
@@ -148,4 +149,9 @@ public class SysOssTextbookController extends BaseController {
         sysOssTextbookService.download(id, response);
     }
 
+    @SaCheckPermission("file:textbook:preview")
+    @PostMapping("/preview/{id}")
+    public void preview(@PathVariable Long id, HttpServletResponse response) throws Exception {
+        sysOssTextbookService.preview(id, response);
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssPersonService.java

@@ -72,5 +72,5 @@ public interface ISysOssPersonService {
     Boolean moveByBo(SysOssPersonBo bo);
 
     void download(Long id, HttpServletResponse response) throws IOException;
-
+    void preview(Long id, HttpServletResponse response) throws Exception;
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssResourceService.java

@@ -1,7 +1,6 @@
 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;
@@ -87,4 +86,6 @@ public interface ISysOssResourceService {
 
     void download(Long id, HttpServletResponse response) throws IOException;
 
+    void preview(Long id, HttpServletResponse response) throws Exception;
+
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssService.java

@@ -86,6 +86,13 @@ public interface ISysOssService {
      */
     SysOssVo getByMd5(String md5);
 
-
+    /**
+     * 文件预览
+     *
+     * @param ossId
+     * @param response
+     * @throws IOException
+     */
+    void preview(Long ossId, HttpServletResponse response) throws Exception;
 
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/ISysOssTextbookService.java

@@ -83,5 +83,6 @@ public interface ISysOssTextbookService {
     Boolean moveByBo(SysOssTextbookBo bo);
 
     void download(Long id, HttpServletResponse response) throws IOException;
+    void preview(Long id, HttpServletResponse response) throws Exception;
 
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssPersonServiceImpl.java

@@ -200,4 +200,10 @@ public class SysOssPersonServiceImpl implements ISysOssPersonService {
         String fileName = ossPerson.getFileName();
         ossService.download(ossPerson.getOssId(), fileName, response);
     }
+
+    @Override
+    public void preview(Long id, HttpServletResponse response) throws Exception {
+        SysOssPerson ossPerson = baseMapper.selectById(id);
+        ossService.preview(ossPerson.getOssId(), response);
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssResourceServiceImpl.java

@@ -1,7 +1,5 @@
 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;
@@ -14,18 +12,14 @@ 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;
@@ -230,4 +224,10 @@ public class SysOssResourceServiceImpl implements ISysOssResourceService {
         baseMapper.addDownloadNum(id);
     }
 
+    @Override
+    public void preview(Long id, HttpServletResponse response) throws Exception {
+        SysOssResource ossResource = baseMapper.selectById(id);
+        ossService.preview(ossResource.getOssId(), response);
+        baseMapper.addPreviewNum(id);
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssServiceImpl.java

@@ -4,6 +4,9 @@ import cn.hutool.core.bean.BeanUtil;
 import cn.hutool.core.convert.Convert;
 import cn.hutool.core.io.unit.DataSizeUtil;
 import cn.hutool.core.util.ObjectUtil;
+import com.aspose.cells.Workbook;
+import com.aspose.slides.Presentation;
+import com.aspose.words.Document;
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
@@ -36,9 +39,7 @@ import org.springframework.http.MediaType;
 import org.springframework.stereotype.Service;
 import org.springframework.web.multipart.MultipartFile;
 
-import java.io.File;
+import java.io.*;
-import java.io.FileInputStream;
-import java.io.IOException;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
@@ -305,4 +306,49 @@ public class SysOssServiceImpl implements ISysOssService, OssService {
         return baseMapper.selectVoOne(new LambdaQueryWrapper<SysOss>().eq(SysOss::getFileMd5, md5));
     }
 
+    @Override
+    public void preview(Long ossId, HttpServletResponse response) throws Exception {
+        SysOssVo sysOss = SpringUtils.getAopProxy(this).getById(ossId);
+        OssClient storage = OssFactory.instance(sysOss.getService());
+        InputStream is = null;
+        OutputStream os = null;
+        try {
+            is = storage.getObjectContent(sysOss.getFileName());
+            os = response.getOutputStream();
+            byte[] byteData = new byte[1024];
+            // 前端word预览仅支持.docx，将.doc转换为.docx
+            if ((".doc").equals(sysOss.getFileSuffix())) {
+                Document doc = new Document(is);
+                doc.save(os, com.aspose.words.SaveFormat.DOCX);
+            }
+            if ((".xls").equals(sysOss.getFileSuffix())) {
+                Workbook xls = new Workbook(is);
+                xls.save(os, com.aspose.cells.SaveFormat.XLSX);
+            }
+            if ((".ppt").equals(sysOss.getFileSuffix())) {
+                Presentation xls = new Presentation(is);
+                xls.save(os, com.aspose.slides.SaveFormat.Pdf);
+            }
+            int len = 0;
+            while ((len = is.read(byteData)) != -1) {
+                os.write(byteData, 0, len);
+            }
+            os.flush();
+        } finally {
+            if (os != null) {
+                try {
+                    os.close();
+                } catch (IOException e) {
+                    //log.error("IO异常", e);
+                }
+            }
+            if (is != null) {
+                try {
+                    is.close();
+                } catch (IOException e) {
+                    //log.error("IO异常", e);
+                }
+            }
+        }
+    }
 }

ruoyi-modules/ruoyi-system/src/main/java/org/dromara/system/service/impl/SysOssTextbookServiceImpl.java

@@ -223,4 +223,11 @@ public class SysOssTextbookServiceImpl implements ISysOssTextbookService {
         ossService.download(ossTextbook.getOssId(), fileName, response);
         baseMapper.addDownloadNum(id);
     }
+
+    @Override
+    public void preview(Long id, HttpServletResponse response) throws Exception {
+        SysOssTextbook ossTextbook = baseMapper.selectById(id);
+        ossService.preview(ossTextbook.getOssId(), response);
+        baseMapper.addPreviewNum(id);
+    }
 }